Extreme thermal conductivity and shock resistance with non-wetting behaviour to molten metals — the high-performance choice for kiln furniture and melt-handling.
Used for: kiln furniture · molten-metal components · thermocouple sheaths · heat exchangers · wear parts · burner tubes
Anderman supplies porous and dense silicon carbides with excellent thermal shock, high strength and operating temperatures up to 1600 °C. The non-wetting behaviour to molten metals makes SiC ideal for furnace and melt-handling components. Stock is available in tubes, thermocouple sheaths, rods, crucibles and beams.
Silicon carbide combines very high thermal conductivity (an order of magnitude above alumina), low thermal expansion and exceptional thermal-shock resistance. It is hard, abrasion-resistant, and chemically stable in most oxidising and reducing atmospheres up to its service ceiling.
Anderman offers reaction-bonded (SiSiC), recrystallised (RSiC), nitride-bonded (NSiC) and mullite-bonded grades. Reaction-bonded is dense and gas-tight; recrystallised is purer and runs hotter; nitride-bonded is widely used for kiln furniture and burners.
Kiln furniture (setters, posts, batts, plates), burner tubes and flame holders, immersion heater sheaths, molten-metal components for aluminium and copper, heat-exchanger tubes and wear-resistant parts.
| Grade | Purity | Max temp | Density | Hardness | Typical use | Find products |
|---|---|---|---|---|---|---|
| EC70P | 70% SiC (mullite-bonded) | 1400 °C | 2.6 | — | Cost-balanced kiln furniture | → Find products |
| EC90P | 90% SiC (mullite-bonded) | 1500 °C | 2.7 | — | Higher-temperature kiln furniture | → Find products |
| EC100P | Recrystallised SiC | 1600 °C | 2.7 | — | Purer, hottest porous grade | → Find products |
| SiSiC | Reaction-bonded SiC | 1380 °C | 3.1 | 2800 HV | Dense, gas-tight — burners, heat exchangers, wear | → Find products |
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High thermal conductivity moves heat in and out of the load fast, low expansion plus high strength tolerates rapid cycling, and the carbide doesn’t wet most melts. Together that means faster fires, less cracking and less contamination than oxide alternatives.
Dense (SiSiC, RSiC) is specified where gas-tightness, mechanical loading or wear governs. Porous bonded grades are the workhorse for setters, posts and batts where thermal mass and low cost matter more than peak strength.
Yes — SiC is widely used as immersion heater sheaths, riser tubes and degassing components in aluminium handling. For prolonged contact, check for oxidation protection and free-silicon levels with us before specifying.
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Tell us your operating temperature, the chemistry it'll see and any mechanical loads. We'll specify a grade — or recommend an alternative material — and link you directly to matching products.
