The process of taking alloys and casting them into custom engineered designs is dependent not only on the steel casting process, but also the quality of the raw materials. Steloy takes the necessary steps to ensure all of our stainless, super alloys and carbon steels are clean and ready to perform to your requirements. With over 200 alloys, we have the base material selection to meet your challenging process environments.

Steloy Castings adheres to a policy of absolute quality, producing castings according to internationally acknowledged cast specifications. Because of the implicit relationship with AISI/ANSI/ASME/API standards, ASTM cast specifications are usually applied. Other specifications such as DIN EN, BS and SEW are also applied on a regular basis. In addition, provision has been made for specific cases requiring conformance to fit-for-purpose specifications.

Material Catalogue

Large selections of our materials have been covered in our Material Catalogue, which is regularly updated and used by customers and engineers worldwide in determining component specifications.

The steel casting grades that we manufacture include:

  • Heat Resistant Steel
  • Corrosion Resistant Steel
  • Wear Resistant Steel
  • Carbon Steel Castings
  • Low Alloy Steel

To download our material catalogue, fill in the short form below:

News updates

Steloy – Coal to Liquids

South Africa’s Most Prominent Petrochemical Supplier

Steloy Castings is recognised as the leading name in the supply of a full range of petrochemical castings, producing custom furnace supports and process tube castings in a variety of heat-resistant alloys for industrial fired and process heaters that are vital in the process of coal liquefaction.

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About Us

Established in 1984, Steloy Castings ranks as one of the most advanced specialist foundries in South Africa, supplying static and centrifugally cast high-alloy components to customers across the globe.


Head Office:
4 Cobalt Street, Ekandustria, Bronkhorstspruit,
South Africa
P.O. Box 1591, Bronkhorstspruit, 1020, South Africa

Tel: +27 13 933 3331
Fax: +27 13 933 3653