We manufacture and export a wide range of crucibles, furnaces and minerals to the foundry industry.

PROLONG YOUR CRUCIBLE LIFE

Century silicon carbide crucibles, which competition cannot duplicate are exclusively formulated by using selected ingredients, and custom mixed to produce the excellence in crucibles.

A special self-renewing glaze is used, giving longer life along with a special low temperature paint, which prevents low temperature oxidation. Using the vacuum impregnation technique of forcing the glaze into the pores further reduces the crucible wall deterioration.

When the crucible is heated to 900 deg C, the glaze softens at this temperature and closes the pores. If the glaze is thorough and complete, the life of the crucible increases.

Ź	CENTURY CRUCIBLES ARE PHENOLIC RESIN BONDED SPECIAL FORMULATION CRUCIBLES AND COLOUR CODES FOR DIFFERENT APPLICATIONS.
Ź	IT IS HOWEVER A POPULAR PRACTISES TO USE THE SAME CRUCIBLES FOR DIFFERENT METALS AND ALLOYS, WHICH MAY HAVE WORKING TEMPERATURES BELOW THE IDEAL TEMPERATURE SUITABLE FOR ITS COMPOSTION. THIS IS DETERIMENTAL TO THE LIFEOF THE CRUCIBLE.
Ź	A SPECIAL GLAZE REJUVENATING SYSTEM SHALL PROLONG THE CRUCIBLE LIFE IN THE EVENT OF SUCH PRACTISE AT THE FOUNDRY.
Ź	WE HOWEVER DO RECOMMEND THAT THE CRUCIBLE SELECTED SHOULD BE IDEALLY SUITED FOR YOUR APPLICATION.

BLUE FOR APPLICATION IN COPPER & HIGHER TEMPERATURE COPPER ALLOYS.

These crucibles are recommended to be used between the temperature ranges of 1250 C to 1400 C

In the event these crucibles are being used below the temperature of 1250 deg C, they should be heated to 1300 deg C and held for one hour every week. This can be done by heating the crucible empty or by using it for a MELT @1300 C

WHITE FOR APPLICATION IN BRASS AND LOWER TEMPERATURE COPPER ALLOYS.

These crucibles are recommended to be used between the temperature ranges of 1100 C to 1250 C

In the event these crucibles are being used below the temperature of 1100 C, they should be heated to 1250 C and held for one hour every week. This can be done by heating the crucible empty or by using it for a MELT @1250 C

RED FOR APPLICATION IN ALUMINIUM AND LOWER TEMPERATURE ALLOYS.

These crucibles are recommended to be used between the temperature ranges of 800 C to 1000 C

In the event these crucibles are being used below the temperature of 800 C, they should be heated to 1000 C and held for one hour every week. This can be done by heating the crucible empty or by using it for a MELT @1000 C

YELLOW FOR APPLICATION IN GOLD, SILVER AND OTHER JEWELLARY CAST ALLOYS.

These crucibles are recommended to be used between the temperature ranges of 1100 C to 1250 C

In the event these crucibles are being used below the temperature of 1100 C, they should be heated to 1250 C and held for one hour every week. This can be done by heating the crucible empty or by using it for a MELT @1250 C.

GREEN FOR APPLICATION IN CAST IRON (NO STEEL INCLUSIONS).

These crucibles are recommended to be used only above 1350C.

GENERAL HEAT UP SCHEDULE

FOR NEW CRUCIBLE

HEAT UP CRUCIBLE TO RED HEAT(950 C) IN 60 MINS , BEFORE CHARGING METAL.

FOR OLD MOIST CRUCIBLE

HEAT TO 200 DEG C IN SLOW HEAT IN TWO HOURS ,THEN GRADUALLY INCREASE TEMPERATURE TO 950 DEG C IN THE NEXT ONE HOUR, BEFORE CHARGING METAL.

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