ASME SA335 Black Surface High Temperature Alloy Steel ...
ASTM A335 ASME SA335 P9 Seamless Ferritic Alloy-Steel . A335 P9 is a high temperature chromium molybdenum alloy heat-resistant steel. Because of its good oxidation resistance, high temperature strength and sulfide corrosion resistance, A335 P9 is widely used in high temperature, high pressure, flammable and explosive pipelines of petroleum refining and chemical equipment, especially the direct ...
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