{"id":51149,"date":"2026-10-08T18:01:11","date_gmt":"2026-10-08T16:01:11","guid":{"rendered":"https:\/\/zinn-giesserei-goehler.com\/guide\/which-crucible-for-which-metal\/"},"modified":"2026-10-15T10:53:45","modified_gmt":"2026-10-15T08:53:45","slug":"which-crucible-for-which-metal","status":"publish","type":"page","link":"https:\/\/zinn-giesserei-goehler.com\/en\/guide\/which-crucible-for-which-metal\/","title":{"rendered":"Which crucible for which metal"},"content":{"rendered":"<div class=\"wp-block-zggtheme-blocks-header\">\n            <div class = zggtheme-content-header-container>\n                <div class=\"zggtheme-content-header-image\" style=\"\">\n                    <div class=\"zggtheme-content-header-overlay\">\n                        <header class=\"page-title-container\">\n                            <h1 class=\"page-title\">\n                                Which crucible for which metal\n                            <\/h1>\n                        <\/header>\n                        \n                        \n                    <\/div>\n                <\/div>\n            <\/div>\n            <\/div><div class=\"zggtheme-page-layout zggtheme-page-layout-left-ltov zggtheme-page-layout-right-vtox wp-block-zggtheme-blocks-page-layout\">\n<div class=\"zggtheme-page-layout-area zggtheme-page-layout-left\">\n<nav class=\"zggtheme-toc zggtheme-container wp-block-zggtheme-blocks-table-of-contents\" aria-labelledby=\"zggtheme-toc-1-title\" data-zggtheme-toc><h2 class=\"zggtheme-toc-title\" id=\"zggtheme-toc-1-title\"><span class=\"zggtheme-toc-title-text\">Inhalt<\/span><button type=\"button\" class=\"zggtheme-toc-toggle\" aria-expanded=\"true\" aria-controls=\"zggtheme-toc-1-list\" hidden><span class=\"zggtheme-toc-toggle-text\">Inhalt<\/span><\/button><\/h2><ol class=\"zggtheme-toc-list\" id=\"zggtheme-toc-1-list\" role=\"list\"><li class=\"zggtheme-toc-item\"><a class=\"zggtheme-toc-link\" href=\"#aufgabe-und-abgrenzung-des-schmelztiegels\">Purpose and distinction of the crucible<\/a><\/li><li class=\"zggtheme-toc-item\"><a class=\"zggtheme-toc-link\" href=\"#tiegelwerkstoffe-von-grafit-bis-aluminiumoxid\">Crucible materials from graphite to aluminium oxide<\/a><\/li><li class=\"zggtheme-toc-item\"><a class=\"zggtheme-toc-link\" href=\"#schmelztiegel-und-metall-richtig-zuordnen\">Matching crucibles and metal correctly<\/a><\/li><li class=\"zggtheme-toc-item\"><a class=\"zggtheme-toc-link\" href=\"#die-richtige-tiegelgroesse-bestimmen\">Determining the right crucible size<\/a><\/li><li class=\"zggtheme-toc-item\"><a class=\"zggtheme-toc-link\" href=\"#ofentyp-und-bauform-des-tiegels\">Furnace type and crucible design<\/a><\/li><li class=\"zggtheme-toc-item\"><a class=\"zggtheme-toc-link\" href=\"#lebensdauer-und-typische-tiegelschaeden\">Service life and typical crucible damage<\/a><\/li><li class=\"zggtheme-toc-item\"><a class=\"zggtheme-toc-link\" href=\"#sicher-arbeiten-mit-fluessigem-metall\">Working safely with molten metal<\/a><\/li><li class=\"zggtheme-toc-item\"><a class=\"zggtheme-toc-link\" href=\"#den-passenden-schmelztiegel-fuer-ihr-metall-finden\">Finding the right crucible for your metal<\/a><\/li><li class=\"zggtheme-toc-item\"><a class=\"zggtheme-toc-link\" href=\"#faq\">Frequently asked questions about crucibles<\/a><\/li><\/ol><\/nav>\n<\/div>\n\n<div class=\"zggtheme-page-layout-area zggtheme-page-layout-main\">\n\n<div class=\"wp-block-group zgg-milky-glas-container\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n\n<p class=\"zgg-rat__meta wp-block-paragraph\">Last checked on October 15, 2026<\/p>\n\n\n<div class=\"wp-block-zggtheme-blocks-notice\">        <div class=\"zgg-notice is-notice\" >\n                        <div class=\"zgg-notice-inner\">\n                <p class=\"zgg-notice-text is-notice\">\n                    A crucible for metals must be able to get hotter than its contents and must not contaminate the melt. Graphite crucibles can be used regardless of the metal up to around 1,200 to 1,300\u00b0C. In graphite crucibles, the main difference between inexpensive and expensive models is durability, because the more expensive German crucibles contain more silicon carbide and aluminium oxide and no clay. Ceramic crucibles made of pure aluminium oxide withstand up to 1,700\u00b0C, but are sensitive to thermal shock, brittle, and usually have a significantly shorter service life than graphite crucibles. The second question is size, because crucibles are specified in cubic centimetres, and how much metal fits depends on its density.                                    <\/p>\n            <\/div>\n        <\/div>\n        <\/div>\n\n\n<figure style=\"margin:1.5rem 0\">\n<video controls=\"\" preload=\"none\" playsinline=\"\" width=\"1920\" height=\"1080\" style=\"width:100%;height:auto;display:block;background:#fff;border:1px solid #e6e6e3;border-radius:8px\" poster=\"https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2026\/10\/schmelztiegel-auswahl_vorschaubild.jpg\" aria-label=\"Erkl\u00e4rvideo: Welcher Schmelztiegel f\u00fcr welches Metall\">\n<source src=\"https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2026\/10\/schmelztiegel-auswahl.mp4\" type=\"video\/mp4\">\n<track kind=\"captions\" srclang=\"de\" label=\"German\" src=\"https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2026\/10\/schmelztiegel-auswahl.vtt\">\n<\/track\/><\/video>\n<\/figure>\n<script type=\"application\/ld+json\">\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"VideoObject\",\"name\":\"Welcher Schmelztiegel f\u00fcr welches Metall\",\"description\":\"Schmelztiegel richtig ausw\u00e4hlen: Temperatur des Metalls, Grafit oder Keramik, Gr\u00f6\u00dfe nach Volumen, Ofen und Ausguss, dazu die wichtigsten Sicherheitsregeln.\",\"thumbnailUrl\":\"https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2026\/10\/schmelztiegel-auswahl_vorschaubild.jpg\",\"contentUrl\":\"https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2026\/10\/schmelztiegel-auswahl.mp4\",\"uploadDate\":\"2026-10-07\",\"duration\":\"PT2M5S\",\"inLanguage\":\"de\"}\n<\/script>\n\n\n\n<h2 id=\"aufgabe-und-abgrenzung-des-schmelztiegels\" class=\"wp-block-heading\">Purpose and distinction of the crucible<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">In non-ferrous metal casting, a crucible has three interlocking tasks. It holds the solid metal while it melts. It then keeps the melt at temperature. And it transports it to where it is poured. In doing so, it must withstand temperatures above the melting temperature of the alloy being charged, without changing or contaminating the melt.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The pouring ladle is distinct from the crucible. It is a tool for pouring off, and with small quantities of low-melting metals it can also be used to melt directly. Our <a href=\"https:\/\/zinn-giesserei-goehler.com\/en\/produkt-kategorie\/foundry-tools\/pouring-ladles\/\">pouring ladles<\/a> aus Stahl sind f\u00fcr Zinn, Bismut, Zink und Aluminium bis etwa 800 Grad Celsius ausgelegt und sollten nicht dauerhaft dar\u00fcber belastet werden. Geschmolzen wird im geschlichteten L\u00f6ffel bis etwa 400 bis 500 Grad Celsius, also Zinn, Bismut, Blei und Zink. Dar\u00fcber, etwa bei Aluminium, dient er nur noch zum Sch\u00f6pfen. Zum Schutz vor Korrosion schlichten Sie die Gie\u00dfl\u00f6ffel immer ein. Bei Zink schlichten Sie den L\u00f6ffel besonders oft und gro\u00dfz\u00fcgig ein, sonst legiert sich der Stahl mit dem Zink. Selbst gut geschlichtet greift die Zinkschmelze den Stahl mit der Zeit an, weil Zink und Eisen ineinander \u00fcbergehen. Schlichten Sie deshalb gro\u00dfz\u00fcgig nach oder nehmen Sie einen L\u00f6ffel oder Aufsatz aus Grafit. Als Sch\u00f6pfwerkzeug endet der Gie\u00dfl\u00f6ffel dort, wo sein Volumen nicht mehr reicht oder das Metall hei\u00dfer als etwa 800 Grad Celsius wird. Dann brauchen Sie einen Tiegel.<\/p>\n\n\n\n<h2 id=\"tiegelwerkstoffe-von-grafit-bis-aluminiumoxid\" class=\"wp-block-heading\">Crucible materials from graphite to aluminium oxide<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">For non-ferrous metal casting, most crucibles are made from clay-bonded graphite or resin-bonded silicon carbide. With graphite, it is worth taking a closer look, because the same name is used for very different crucibles. Pure graphite begins to oxidise in air at around 450 to 500\u00b0C, but remains usable up to around 1,200\u00b0C. In use, the crucible slowly dissolves. Under protective gas or in a vacuum, the same material can withstand up to 3,000\u00b0C. For the crucibles themselves, the ceramic content is the distinguishing feature. The product information does not state a temperature limit for each type, but it does indicate the ranking of service life.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If you need graphite beyond crucibles, you will also find under <a href=\"https:\/\/zinn-giesserei-goehler.com\/en\/produkt-kategorie\/foundry-supplies\/graphite-products\/\">graphite products<\/a> auch Gussformen und Rundstangen; f\u00fcr eine 2026 ver\u00f6ffentlichte Arbeit haben Forschende aus Grafitst\u00e4ben dieses Sortiments ihre eigenen Tiegel gefertigt. Der keramische Anteil ist auch im Sortiment das unterscheidende Merkmal. Die Grafittiegel f\u00fcr Elektro\u00f6fen bestehen aus reinem Grafit. Die Tiegel ohne Ausguss und der 600er mit Ausguss bestehen aus Grafit mit Anteilen von Siliciumcarbid und Siliciumoxid. Den h\u00f6chsten keramischen Anteil haben die MIG-Grafittiegel (Made in Germany) mit Ausguss. Sie bestehen aus 36 bis 46 Prozent Grafit, 12 bis 20 Prozent Siliciumcarbid und Silicium, 12 bis 16 Prozent Aluminiumoxid und 20 bis 28 Prozent Siliciumdioxid. Durch diesen h\u00f6heren keramischen Anteil sind die MIG-Grafittiegel am hitzebest\u00e4ndigsten und langlebigsten, gefolgt von den Tiegeln ohne Ausguss und dem 600er mit Ausguss. Die Tiegel f\u00fcr Elektro\u00f6fen verschlei\u00dfen am schnellsten, weil sie aus reinem Grafit bestehen.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Alongside graphite, the range also includes oxide ceramics. Our <a href=\"https:\/\/zinn-giesserei-goehler.com\/en\/produkt\/al2o3-ceramic-crucible\/\">Al2O3 ceramic crucibles<\/a> can be used up to 1,700\u00b0C and therefore offer the greatest headroom. However, they are sensitive to abrupt temperature changes to the extent that rapid heating or cooling can damage or destroy the crucible. We therefore use ceramic crucibles for special cases, for example when the melt must not come into contact with carbon. Crucibles made from other advanced ceramics are also available. They are not part of the standard range, but we can usually source them for you.<\/p>\n\n\n\n<h2 id=\"schmelztiegel-und-metall-richtig-zuordnen\" class=\"wp-block-heading\">Matching crucibles and metal correctly<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Selection takes place in two steps. First, check where your metal melts. Then you need a crucible whose service temperature is above that, with a safety margin, because the melt must be hotter for pouring than for mere melting. For copper-tin casting alloys, the pouring temperature is around 50 to 100 K above the liquidus temperature. This range cannot be transferred to other alloys. The furnace also plays a role, because in some small electric furnaces only graphite crucibles of certain dimensions can be used sensibly.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Metal<\/th><th>Melting point or melting range<\/th><th>Suitable melting vessel<\/th><\/tr><\/thead><tbody><tr><td>Tin<\/td><td>around 232\u00b0C<\/td><td>Pouring ladle or graphite crucible<\/td><\/tr><tr><td>Bismuth<\/td><td>271\u00b0C<\/td><td>Pouring ladle or graphite crucible<\/td><\/tr><tr><td>Lead<\/td><td>around 327\u00b0C<\/td><td>Pouring ladle or graphite crucible<\/td><\/tr><tr><td>Zinc<\/td><td>around 419\u00b0C<\/td><td>Pouring ladle (very well coated) or graphite crucible<\/td><\/tr><tr><td>Aluminum<\/td><td>around 660\u00b0C<\/td><td>Graphite crucible, also with ceramic content; pouring ladle for scooping only<\/td><\/tr><tr><td>Brass CuZn39Pb3<\/td><td>880 to 895\u00b0C<\/td><td>Graphite crucible, graphite crucible with ceramic content, or ceramic crucible<\/td><\/tr><tr><td>Brass CuZn37<\/td><td>902 to 920\u00b0C<\/td><td>Graphite crucible, graphite crucible with ceramic content, or ceramic crucible<\/td><\/tr><tr><td>Silver<\/td><td>around 962\u00b0C<\/td><td>Graphite crucible, graphite crucible with ceramic content, or ceramic crucible<\/td><\/tr><tr><td>Bronze CuSn12-C<\/td><td>830 to 1,000\u00b0C<\/td><td>Graphite crucible, graphite crucible with ceramic content, or ceramic crucible<\/td><\/tr><tr><td>Gold<\/td><td>1,063\u00b0C<\/td><td>Graphite crucible, graphite crucible with ceramic content, or ceramic crucible<\/td><\/tr><tr><td>Copper<\/td><td>around 1,085\u00b0C<\/td><td>Graphite crucible, graphite crucible with ceramic content, or ceramic crucible<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">For the pure metals, a melting point is given; for the three alloys, a range. As soon as you alloy, the picture shifts, which is why brass and bronze are listed in the table with a specific alloy designation rather than as a generic category. Copper-tin alloys have a wide solidification interval and therefore tend to segregation. Even a small addition of phosphorus has a deoxidising effect in these bronzes and improves castability. There is no fixed melting point for bronze or brass, because both are umbrella terms for many alloys.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">From zinc onwards, i.e. from the fourth row, the difference between graphite grades becomes apparent. Over many melts, crucibles made of pure graphite slowly wear away and become thinner-walled; in principle, however, they remain perfectly usable.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">At the lower end of the table, the crucible question is straightforward. For <a href=\"https:\/\/zinn-giesserei-goehler.com\/en\/produkt-kategorie\/pure-metals\/tin\/\">pure tin ingots<\/a>, for <a href=\"https:\/\/zinn-giesserei-goehler.com\/en\/produkt-kategorie\/pure-metals\/bismuth-2\/\">bismuth granules<\/a> and for lead, a steel pouring ladle or any graphite grade is sufficient, because all of them have ample headroom here. How such casting works in practice is explained in our <a href=\"https:\/\/zinn-giesserei-goehler.com\/en\/guide\/casting-pewter-figures-step-by-step\/\">guide to casting tin figurines<\/a>. We advise against using a ceramic crucible for tin figurines; a pouring ladle or graphite crucible is sufficient here.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ab <a href=\"https:\/\/zinn-giesserei-goehler.com\/en\/produkt-kategorie\/pure-metals\/zinc-2\/\">zinc pellets<\/a> und Aluminium h\u00e4lt eine Sorte mit keramischem Anteil l\u00e4nger, weil reiner Grafit hier schneller zehrt. Gut geschlichtete Gie\u00dfl\u00f6ffel sind hier noch verwendbar, eher aber als Werkzeug, um das Metall vom Tiegel in die Form zu bringen. Bei <a href=\"https:\/\/zinn-giesserei-goehler.com\/en\/produkt-kategorie\/alloys\/brass\/\">Brass<\/a>,  <a href=\"https:\/\/zinn-giesserei-goehler.com\/en\/produkt-kategorie\/alloys\/bronze-2\/\">Bronze<\/a> und <a href=\"https:\/\/zinn-giesserei-goehler.com\/en\/produkt-kategorie\/pure-metals\/copper\/\">Copper<\/a> arbeiten Sie dann im unteren Drittel der Tabelle. Die Produktangabe nennt alle Tiegelsorten des Sortiments f\u00fcr diese Metalle, der Unterschied liegt in der Standzeit: Je h\u00f6her der keramische Anteil eines Grafittiegels, desto l\u00e4nger h\u00e4lt er. Bei Messing kommt ein Punkt hinzu, der nichts mit dem Tiegel zu tun hat. Das enthaltene Zink siedet bei 906 Grad Celsius und dampft deshalb aus der hei\u00dfen Schmelze aus. Dieser Zinkabbrand l\u00e4sst sich durch Abdecken mit trockener Holzkohle oder einem neutralen Schmelzmittel teilweise unterbinden. Schmelzen Sie Messing h\u00e4ufig auf, muss Zink nachlegiert werden. Achten Sie beim Schmelzen von Messing immer auf gute Bel\u00fcftung.<\/p>\n\n\n\n<h2 id=\"die-richtige-tiegelgroesse-bestimmen\" class=\"wp-block-heading\">Determining the right crucible size<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Crucibles are specified by volume, and that explains a specification that is confusing at first glance. In our size tables, the columns are labelled \u201cmax. Cu\u201d and \u201cmax. Al\u201d. They refer to the maximum load in kilograms, calculated using copper at 8.92 g\/cm\u00b3 and aluminium at 2.7 g\/cm\u00b3. The same crucible therefore holds very different masses depending on which metal you charge.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Therefore, calculate from your casting. You need the volume of the part plus sprue and riser, plus a little remainder in the crucible, and the crucible must be able to hold this volume. A graphite crucible with a spout with a capacity of 600 cm\u00b3 holds 5.3 kg of copper or 1.6 kg of aluminium. The smallest crucibles in the range hold 50 cm\u00b3, which is suitable for individual figurines; the largest hold 4,500 cm\u00b3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A crucible that is too large is not a safety gain; it costs energy and heat-up time for metal you do not need. One that is too small tempts you to overfill. If you cannot find anything suitable in the range in terms of volume or design, ask us about special shapes and special dimensions; we can source them on request.<\/p>\n\n\n\n<h2 id=\"ofentyp-und-bauform-des-tiegels\" class=\"wp-block-heading\">Furnace type and crucible design<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">In addition to material and size, the heating method also matters. For small electric furnaces there are dedicated <a href=\"https:\/\/zinn-giesserei-goehler.com\/en\/produkt\/graphite-crucible-for-electric-furnaces\/\">graphite crucibles for electric furnaces<\/a>. They are made of pure graphite, which brings the material question from above back into play: if you melt brass, bronze or copper in an electric furnace, a grade with ceramic content will last longer. In gas furnaces, the electric-furnace crucibles can in principle also be used, but for gas furnaces there are crucibles with a better design. Ask about this before you order. Also measure the interior of your furnace and compare it with the height and top diameter of the crucible.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The second design question is the spout. With a spout, you can pour from the crucible in a controlled manner; without a spout, you skim or decant. Our <a href=\"https:\/\/zinn-giesserei-goehler.com\/en\/produkt\/graphite-crucible-without-spout\/\">graphite crucibles without a spout<\/a> are simple in design and, thanks to their price-performance ratio, are particularly suitable for beginners and occasional casters. For regular casting and high demands on service life, the <a href=\"https:\/\/zinn-giesserei-goehler.com\/en\/produkt\/graphite-crucible-made-in-germany\/\">more durable graphite crucible<\/a> is worthwhile, i.e. the MIG graphite crucibles with a spout.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Plan the gripping method from the outset. Our electric-furnace crucibles have a recess at the top so they can be gripped with suitable tongs. Suitable <a href=\"https:\/\/zinn-giesserei-goehler.com\/en\/produkt-kategorie\/foundry-tools\/tongs\/\">crucible tongs<\/a> are not an accessory you think of later, but part of selecting the crucible. The <a href=\"https:\/\/zinn-giesserei-goehler.com\/en\/produkt\/crucible-tongs-for-e-furnace-crucibles\/\">tongs for electric-furnace crucibles<\/a> are 35.5 cm long, weigh 270 g and fit common electric-furnace graphite crucibles, such as our 100, 200 and 250 cm\u00b3 sizes.<\/p>\n\n\n\n<h2 id=\"lebensdauer-und-typische-tiegelschaeden\" class=\"wp-block-heading\">Service life and typical crucible damage<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Three types of stress determine how long a crucible lasts: high operating temperatures, mechanical stress during charging, and frequent temperature changes. Two of these are under your control; the third is determined by your metal.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pure graphite oxidises in air, and among the graphite crucibles in the range, one lasts longer the higher its ceramic content. Ceramic crucibles are sensitive to thermal shock. Therefore, never heat at full power from the start, change the temperature gradually, and avoid contact with cold surfaces. Let a red-hot ceramic crucible cool down slowly in the furnace; otherwise it will crack. The shop does not specify a heating rate for the ceramic crucibles. If your crucible comes with a manufacturer\u2019s recommendation, that is the authoritative guidance.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mechanically, two mistakes are particularly costly. Hard impacts from ingots during charging can lead to cracks and breakage, so fill the crucible carefully. And crucibles expand when hot, which is why they must never be wedged in the furnace. A crucible that fits exactly when cold is under stress when hot. Store it dry and protected from moisture.<\/p>\n\n\n\n<h2 id=\"sicher-arbeiten-mit-fluessigem-metall\" class=\"wp-block-heading\">Working safely with molten metal<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Moisture is the hazard that is most easily underestimated when melting. If water hits a melt, it evaporates instantly, the steam greatly increases the pressure, and the melt splashes. This steam pressure can occur with any hot melt, regardless of the metal.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Therefore, keep crucibles, tools, charge material and the work surface dry as long as the metal is liquid, and do not cool either mould or metal with water. For foundry operations, the DGUV requires keeping refractory materials, casting auxiliaries and all areas dry where metal or slag in liquid form could reach. The same rule points out that insufficiently preheated refractory material may contain moisture. Applied to the crucible in the workshop: store dry and bring up to temperature slowly. Also heat a pouring ladle before immersing it so that any water evaporates.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">When it comes to protective equipment, the industrial standard is a sensible benchmark, even if you are melting in your own workshop. For steelworks and foundries, occupational safety specifies safety goggles and non-flammable, heat-insulating gloves, as well as clothing without easily melting synthetic fibres. The DGUV additionally requires flame-retardant or non-flammable protective clothing for foundry operations and heat-resistant helmets in areas with molten masses. At your own workbench, safety goggles, heat-insulating gloves and clothing without easily melting synthetic fibres are the minimum before you switch on the furnace.<\/p>\n\n\n\n<h2 id=\"den-passenden-schmelztiegel-fuer-ihr-metall-finden\" class=\"wp-block-heading\">Finding the right crucible for your metal<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Selection therefore rests on four pillars. The metal determines the temperature, which determines the material. The casting quantity determines the volume, converted via density. The furnace determines the design, and handling determines spout and tongs. For your first melting attempt with tin or bismuth, the most affordable graphite grade or a pouring ladle and suitable tongs will take you a long way.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">All sizes and materials are available side by side in the range. Once the crucible is decided, the next step is the mould the metal will later flow into, and for that we offer <a href=\"https:\/\/zinn-giesserei-goehler.com\/en\/produkt-kategorie\/foundry-supplies\/moulds\/\">graphite casting moulds<\/a>. Small quantities can be ordered directly via the shop; larger quantities are available on request. If you are unsure which crucible fits your metal and your furnace, it is better to clarify this with us before your first pour than afterwards.<\/p>\n\n\n\n<h2 id=\"faq\" class=\"wp-block-heading\">Frequently asked questions about crucibles<\/h2>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Can I melt different metals one after another in the same crucible?<\/summary>\n<p class=\"wp-block-paragraph\">A crucible should neither change nor contaminate the melt, and that is exactly where the limit lies when switching. If composition matters or lead has been involved, use a separate crucible for each metal and label it. For identical or related alloys, one crucible is sufficient.<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>How can I tell that a crucible should be replaced?<\/summary>\n<p class=\"wp-block-paragraph\">Check it for cracks before every use, because they can be caused by thermal shock, hard impacts during charging, and after prolonged, repeated use or long dwell times in the furnace. With crucibles made of pure graphite, material loss due to oxidation in air is an additional factor. A crucible with a crack no longer belongs in the furnace.<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>May a crucible be clamped tightly in the furnace?<\/summary>\n<p class=\"wp-block-paragraph\">No. Crucibles expand when hot and must therefore never be wedged in place. A crucible that fits exactly in its holder when cold is under stress when hot. Leave it clearance and install it so that it can expand freely.<\/p>\n<\/details>\n\n<\/div><\/div>\n\n<\/div>\n\n<div class=\"zggtheme-page-layout-area zggtheme-page-layout-right\">\n<div class=\"zggtheme-product-grid zggtheme-container woocommerce wp-block-zggtheme-blocks-product-grid\"><h2 class=\"zggtheme-product-grid-title\">Related products in the shop<\/h2><ul class=\"products zggtheme-card-holder zggtheme-product-card-holder\"><li class=\"zggtheme-interactive-card zggtheme-interactive-product-card product type-product post-30216 status-publish first instock product_cat-casting-accessories product_cat-crucibles-2 product_cat-crucibles product_cat-foundry-supplies product_cat-foundry-tools product_cat-graphite-products product_tag-crucible product_tag-crucibles product_tag-graphite-crucible has-post-thumbnail taxable shipping-taxable purchasable product-type-variable\">\n    <a href=\"https:\/\/zinn-giesserei-goehler.com\/en\/produkt\/graphite-crucible-without-spout\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">    <div class='zggtheme-product-thumbnail-image-frame'><img decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2022\/09\/C-Tiegel-Cn-1-jpeg-300x300.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Graphite Crucible without Spout\" srcset=\"https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2022\/09\/C-Tiegel-Cn-1-jpeg-300x300.webp 300w, https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2022\/09\/C-Tiegel-Cn-1-jpeg-100x100.webp 100w, https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2022\/09\/C-Tiegel-Cn-1-150x150.jpeg 150w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>    <\/div><h3 class=\"woocommerce-loop-product__title\">Graphite Crucible without Spout<\/h3>\n\t<span class=\"price\"><span class=\"woocommerce-Price-amount amount\" aria-hidden=\"true\"><bdi>27,49&nbsp;<span class=\"woocommerce-Price-currencySymbol\" translate=\"no\" dir=\"auto\">&euro;<\/span><\/bdi><\/span> <span aria-hidden=\"true\">&ndash;<\/span> <span class=\"woocommerce-Price-amount amount\" aria-hidden=\"true\"><bdi>109,99&nbsp;<span class=\"woocommerce-Price-currencySymbol\" translate=\"no\" dir=\"auto\">&euro;<\/span><\/bdi><\/span><span class=\"screen-reader-text\">Price range: 27,49&nbsp;&euro; through 109,99&nbsp;&euro;<\/span> <small class=\"woocommerce-price-suffix\">inkl. MwSt.<\/small><\/span>\n<\/a><\/li>\n<li class=\"zggtheme-interactive-card zggtheme-interactive-product-card product type-product post-31911 status-publish instock product_cat-casting-accessories product_cat-crucibles-2 product_cat-crucibles product_cat-foundry-supplies product_cat-foundry-tools product_cat-graphite-products product_tag-crucible product_tag-crucibles product_tag-graphite-crucible has-post-thumbnail taxable shipping-taxable purchasable product-type-variable\">\n    <a href=\"https:\/\/zinn-giesserei-goehler.com\/en\/produkt\/graphite-crucible-made-in-germany\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">    <div class='zggtheme-product-thumbnail-image-frame'><img decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2022\/09\/Tiegel-MIG-1-scaled-300x300.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Graphite Crucible Made in Germany\" srcset=\"https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2022\/09\/Tiegel-MIG-1-scaled-300x300.webp 300w, https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2022\/09\/Tiegel-MIG-1-scaled-100x100.webp 100w, https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2022\/09\/Tiegel-MIG-1-150x150.jpeg 150w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>    <\/div><h3 class=\"woocommerce-loop-product__title\">Graphite Crucible Made in Germany<\/h3>\n\t<span class=\"price\"><span class=\"woocommerce-Price-amount amount\" aria-hidden=\"true\"><bdi>35,49&nbsp;<span class=\"woocommerce-Price-currencySymbol\" translate=\"no\" dir=\"auto\">&euro;<\/span><\/bdi><\/span> <span aria-hidden=\"true\">&ndash;<\/span> <span class=\"woocommerce-Price-amount amount\" aria-hidden=\"true\"><bdi>89,99&nbsp;<span class=\"woocommerce-Price-currencySymbol\" translate=\"no\" dir=\"auto\">&euro;<\/span><\/bdi><\/span><span class=\"screen-reader-text\">Price range: 35,49&nbsp;&euro; through 89,99&nbsp;&euro;<\/span> <small class=\"woocommerce-price-suffix\">inkl. MwSt.<\/small><\/span>\n<\/a><\/li>\n<li class=\"zggtheme-interactive-card zggtheme-interactive-product-card product type-product post-30658 status-publish instock product_cat-casting-accessories product_cat-crucibles-2 product_cat-crucibles product_cat-foundry-supplies product_cat-foundry-tools product_tag-crucible product_tag-crucibles product_tag-high-temperature-resistant has-post-thumbnail taxable shipping-taxable purchasable product-type-variable\">\n    <a href=\"https:\/\/zinn-giesserei-goehler.com\/en\/produkt\/al2o3-ceramic-crucible\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">    <div class='zggtheme-product-thumbnail-image-frame'><img decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2024\/07\/Keramik-Tiegel-1-300x300.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Al2O3 Ceramic Crucible\" srcset=\"https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2024\/07\/Keramik-Tiegel-1-300x300.jpg 300w, https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2024\/07\/Keramik-Tiegel-1-280x280.jpg 280w, https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2024\/07\/Keramik-Tiegel-1-800x800.jpg 800w, https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2024\/07\/Keramik-Tiegel-1-100x100.jpg 100w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>    <\/div><h3 class=\"woocommerce-loop-product__title\">Al2O3 Ceramic Crucible<\/h3>\n\t<span class=\"price\"><span class=\"woocommerce-Price-amount amount\" aria-hidden=\"true\"><bdi>17,99&nbsp;<span class=\"woocommerce-Price-currencySymbol\" translate=\"no\" dir=\"auto\">&euro;<\/span><\/bdi><\/span> <span aria-hidden=\"true\">&ndash;<\/span> <span class=\"woocommerce-Price-amount amount\" aria-hidden=\"true\"><bdi>87,99&nbsp;<span class=\"woocommerce-Price-currencySymbol\" translate=\"no\" dir=\"auto\">&euro;<\/span><\/bdi><\/span><span class=\"screen-reader-text\">Price range: 17,99&nbsp;&euro; through 87,99&nbsp;&euro;<\/span> <small class=\"woocommerce-price-suffix\">inkl. MwSt.<\/small><\/span>\n<\/a><\/li>\n<li class=\"zggtheme-interactive-card zggtheme-interactive-product-card product type-product post-30611 status-publish instock product_cat-casting-accessories product_cat-crucibles-2 product_cat-crucibles product_cat-foundry-tools product_cat-graphite-products product_cat-tongs product_tag-crucible product_tag-crucible-tongs product_tag-crucibles product_tag-graphite-crucible has-post-thumbnail taxable shipping-taxable purchasable product-type-variable\">\n    <a href=\"https:\/\/zinn-giesserei-goehler.com\/en\/produkt\/crucible-tongs-for-e-furnace-crucibles\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">    <div class='zggtheme-product-thumbnail-image-frame'><img decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2024\/07\/E-Ofentiegelzange-1-300x300.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Crucible Tongs for E-Furnace Crucibles\" srcset=\"https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2024\/07\/E-Ofentiegelzange-1-300x300.jpg 300w, https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2024\/07\/E-Ofentiegelzange-1-280x280.jpg 280w, https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2024\/07\/E-Ofentiegelzange-1-800x800.jpg 800w, https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2024\/07\/E-Ofentiegelzange-1-100x100.jpg 100w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>    <\/div><h3 class=\"woocommerce-loop-product__title\">Crucible Tongs for E-Furnace Crucibles<\/h3>\n\t<span class=\"price\"><span class=\"woocommerce-Price-amount amount\" aria-hidden=\"true\"><bdi>62,49&nbsp;<span class=\"woocommerce-Price-currencySymbol\" translate=\"no\" dir=\"auto\">&euro;<\/span><\/bdi><\/span> <span aria-hidden=\"true\">&ndash;<\/span> <span class=\"woocommerce-Price-amount amount\" aria-hidden=\"true\"><bdi>119,99&nbsp;<span class=\"woocommerce-Price-currencySymbol\" translate=\"no\" dir=\"auto\">&euro;<\/span><\/bdi><\/span><span class=\"screen-reader-text\">Price range: 62,49&nbsp;&euro; through 119,99&nbsp;&euro;<\/span> <small class=\"woocommerce-price-suffix\">inkl. MwSt.<\/small><\/span>\n<\/a><\/li>\n<\/ul><\/div>\n<\/div>\n<\/div>\n<script type=\"application\/ld+json\">{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"Article\",\n  \"headline\": \"Welcher Schmelztiegel f\u00fcr welches Metall\",\n  \"description\": \"Schmelztiegel f\u00fcr Metalle: Grafittiegel halten bis etwa 1.200 \u00b0C, der keramische Anteil entscheidet \u00fcber die Haltbarkeit. Dazu Gr\u00f6\u00dfe, Ofen und Gie\u00dfl\u00f6ffel.\",\n  \"datePublished\": \"2026-09-23\",\n  \"dateModified\": \"2026-10-15\",\n  \"author\": {\n    \"@type\": \"Organization\",\n    \"name\": \"Zinn-Gie\u00dferei-G\u00f6hler Redaktion\",\n    \"url\": \"https:\/\/zinn-giesserei-goehler.com\"\n  },\n  \"publisher\": {\n    \"@type\": \"Organization\",\n    \"name\": \"Zinn-Gie\u00dferei-G\u00f6hler\",\n    \"logo\": {\n      \"@type\": \"ImageObject\",\n      \"url\": \"https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2024\/05\/cropped-cropped-Logo-komplett-Pfad-280x200.png\"\n    },\n    \"address\": {\n      \"@type\": \"PostalAddress\",\n      \"streetAddress\": \"H\u00f6ckendorfer Stra\u00dfe 18\",\n      \"postalCode\": \"01705\",\n      \"addressLocality\": \"Freital\",\n      \"addressCountry\": \"DE\"\n    },\n    \"vatID\": \"DE324621656\"\n  },\n  \"mainEntityOfPage\": {\n    \"@type\": \"WebPage\",\n    \"@id\": \"https:\/\/zinn-giesserei-goehler.com\/ratgeber\/schmelztiegel-auswahl\/\"\n  }\n}\n<\/script><script type=\"application\/ld+json\">{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Kann ich in einem Tiegel nacheinander verschiedene Metalle schmelzen?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Ein Tiegel soll die Schmelze weder ver\u00e4ndern noch verunreinigen, und genau da liegt die Grenze beim Wechsel. Wenn es auf die Zusammensetzung ankommt oder Blei im Spiel war, verwenden Sie pro Metall einen eigenen Tiegel und beschriften ihn. F\u00fcr gleiche oder verwandte Legierungen gen\u00fcgt ein Tiegel.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Woran erkenne ich, dass ein Tiegel ersetzt werden sollte?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Pr\u00fcfen Sie ihn vor jedem Einsatz auf Risse, denn sie entstehen durch Temperaturschocks, durch harte Schl\u00e4ge beim Beschicken und nach l\u00e4ngerem, wiederholtem Einsatz oder langen Standzeiten im Ofen. Bei Tiegeln aus reinem Grafit kommt der Abtrag durch Oxidation an Luft hinzu. Ein Tiegel mit Riss geh\u00f6rt nicht mehr in den Ofen.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Darf ein Tiegel im Ofen fest eingespannt werden?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Nein. Tiegel dehnen sich im hei\u00dfen Betrieb aus und d\u00fcrfen deshalb niemals verkeilt werden. Ein Tiegel, der kalt exakt in seine Aufnahme passt, steht hei\u00df unter Spannung. Lassen Sie ihm Platz und setzen Sie ihn so ein, dass er sich frei ausdehnen kann.\"\n      }\n    }\n  ]\n}\n<\/script><script type=\"application\/ld+json\">{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"BreadcrumbList\",\n  \"itemListElement\": [\n    {\n      \"@type\": \"ListItem\",\n      \"position\": 1,\n      \"name\": \"Startseite\",\n      \"item\": \"https:\/\/zinn-giesserei-goehler.com\/\"\n    },\n    {\n      \"@type\": \"ListItem\",\n      \"position\": 2,\n      \"name\": \"Ratgeber\",\n      \"item\": \"https:\/\/zinn-giesserei-goehler.com\/ratgeber\/\"\n    },\n    {\n      \"@type\": \"ListItem\",\n      \"position\": 3,\n      \"name\": \"Welcher Schmelztiegel f\u00fcr welches Metall\",\n      \"item\": \"https:\/\/zinn-giesserei-goehler.com\/ratgeber\/schmelztiegel-auswahl\/\"\n    }\n  ]\n}\n<\/script>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1981,"featured_media":0,"parent":48401,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-51149","page","type-page","status-publish","hentry"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/zinn-giesserei-goehler.com\/en\/wp-json\/wp\/v2\/pages\/51149","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zinn-giesserei-goehler.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/zinn-giesserei-goehler.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/zinn-giesserei-goehler.com\/en\/wp-json\/wp\/v2\/users\/1981"}],"replies":[{"embeddable":true,"href":"https:\/\/zinn-giesserei-goehler.com\/en\/wp-json\/wp\/v2\/comments?post=51149"}],"version-history":[{"count":3,"href":"https:\/\/zinn-giesserei-goehler.com\/en\/wp-json\/wp\/v2\/pages\/51149\/revisions"}],"predecessor-version":[{"id":51307,"href":"https:\/\/zinn-giesserei-goehler.com\/en\/wp-json\/wp\/v2\/pages\/51149\/revisions\/51307"}],"up":[{"embeddable":true,"href":"https:\/\/zinn-giesserei-goehler.com\/en\/wp-json\/wp\/v2\/pages\/48401"}],"wp:attachment":[{"href":"https:\/\/zinn-giesserei-goehler.com\/en\/wp-json\/wp\/v2\/media?parent=51149"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}