
S32205 & S31803 Stainless Steel Coils
S32205 (UNS S32205), a duplex stainless steel with 22% chromium and 5% nickel, delivers exceptional strength (yield strength ≥450MPa) and chloride resistance, ideal for offshore platforms, chemical pipelines, and desalination systems. S31803 (UNS S31803), a similar duplex grade with 21% chromium and 5% nickel, excels in acidic environments (e.g., sulfuric acid) and high-pressure applications like heat exchangers and oil refining equipment. Both materials feature 50/50 austenite-ferrite microstructure for optimal weldability and corrosion resistance.
436 Stainless Steel Coils
436 (UNS S43600), a ferritic stainless steel with 17% chromium, offers cost-effective oxidation resistance (up to 800°C) for automotive exhaust systems, kitchen appliances, and decorative trim. While less corrosion-resistant than duplex grades, its magnetic properties and affordability make it suitable for non-chloride environments. Coils are available in 2B, No.4, and BA finishes with thicknesses from 0.5mm to 12mm.
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