Synbcarb crucibles are high pressure, isostatically pressed CLAY-GRAPHITE crucibles. The clay-bonded Synbcarb crucible has a high density homogenous structure which gives very good chemical resistance against fluxes and excellent thermal conductivity.


The inherent high mechanical strength allows the production of much larger crucibles. Further positive properties are outstanding oxidation resistance, high refractoriness and good thermal shock resistance. Synbcarb crucibles are particularly used for electric resistance and gas-fired furnaces with melting temperatures between 700°C and 1100°C. Synbcarb is suitable for melting of aluminium alloys in pre-melting furnaces as well as for holding with frequent flux application. For specific crucible requirements, such as holding at very low temperatures for zinc distillation or for use in induction furnaces, there are specially modified Synbcarb variants in our product range. Synbcarb is a premium quality crucible manufactured by iso-static pressing and incorporating high levels of oxidation resistance and mechanical durability. It is designed to have superior resistance to attack by melt treatment agents typically used in aluminum alloy applications.


Synbcarb offers superior performance for aluminum holding and melting in electric resistance and gas furnaces; as well as melting and holding of zinc and zinc alloys. 

Synbcarb Typical Metal Casting Temperature 

  • Aluminum: 620 — 900ºC (1148—1652ºF)
  • Zinc: 450 — 550ºC (842—1022ºF) 

Performance Characteristics 

  • Excellent resistance to attack by chemical treatment agents
  • Fast melting
  • Excellent oxidation resistance
  • High density
  • High mechanical strength


Synbcarb crucibles are finished in a light rust color. 

Pattern Range

Synbcarb crucibles are available in a range of shapes and sizes to suit most enduser requirements. Certain sizes can be made available with pyrometer pocket to facilitate measurement of metal temperature. A wide range of pouring lips are available. 


Synbcarb crucibles are manufactured from premium grade raw materials under an ISO 9001:2008 quality management system.

For more information on our Synbcarb range of crucibles, contact us today.