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Stainless Steel

Stainless steel is a corrosion-resistant alloy of iron containing a minimum of 10.5% chromium, often combined with nickel, manganese and other elements to enhance specific properties. The chromium content forms a passive oxide layer on the surface that protects the underlying metal from rust and corrosion, making stainless steel suitable for applications in harsh environments. The material is classified into several families, including austenitic, ferritic, martensitic and duplex grades, each offering different combinations of strength, ductility, weldability and resistance to heat and chemicals. Stainless steel is widely used across industries including construction, automotive, food processing, chemical plants, medical equipment and energy infrastructure. South Africa plays a significant role in the global stainless steel value chain as a major producer of chromium and manganese, two critical alloying elements, much of which is sourced from the Bushveld Complex. The country's ferroalloy industry supplies ferrochrome and ferromanganese to domestic and international stainless steel producers. Beneficiation of these minerals into stainless steel locally adds value and supports industrial development. Global demand for stainless steel continues to grow, driven by urbanisation, infrastructure investment and the transition to cleaner energy technologies. Production is energy-intensive, and the industry is exploring lower-carbon manufacturing routes. Stainless steel is fully recyclable, and a substantial proportion of new production incorporates recycled scrap, contributing to its sustainability profile.

Stainless Steel Updates

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