ASTM ASME C4 Super Steel Pipes & Tubes

ASTM ASME C4 Super Steel Pipes & Tubes are premium-grade alloys designed for exceptional corrosion resistance in aggressive chemical environments. Composed of a specialized austenitic stainless steel (typically containing 16% chromium, 16% nickel, 4% molybdenum, and low carbon), these pipes/tubes excel in resisting pitting, crevice corrosion, and stress corrosion cracking in sulfuric acid, phosphoric acid, and chloride-rich solutions. Engineered to ASTM A312 and ASME SA312 standards, they offer high tensile strength and durability for applications in chemical processing, pharmaceutical equipment, marine engineering, and wastewater treatment systems. Their balanced alloy composition ensures resistance to intergranular corrosion and maintains mechanical properties across a wide temperature range (up to 300°C). Available in seamless or welded configurations, these pipes/tubes deliver reliable performance in environments where standard steels face premature degradation, combining precision engineering with long-term operational stability.