JIS carbon steel SM400B CS plate plate big mills

A387Gr11Cl2 is American standard pressure vessel chromium-molybdenum alloy steel plate. Among A387Gr11Cl2, ASTM A387 is the number of manufacturing technical conditions of "Cr-Mo alloy steel plate for pressure vessels". 387 is the serial number of technical conditions, and Gr11 is grade 11. According to ASME Ⅱ-2007, A387 has 10 levels of 2, 12, 11, 22, 22L, 21, 21L, 5, 9 and 91. Different grades have different chemical compositions and mechanical properties of materials.

JIS carbon steel SM400B CS plate, 09CuPCrNi-A weather resistant steel is origined in China. Its equivalent grades are JIS SPA-H, BS WR50A, Corten steel, etc. The Cu, P, Cr, Ni are important elements that gave 09CuPCrNi-A weather resistant steel its weathering ability. The Cu content of 09CuPCrNi-A steel is 0.25–0.50, P content is 0.060-0.12, Cr content is 0.30-1.25, Ni content is 0.12-0.65. For 09CuPCrNi-A steel coil ≤ 4mm, the min. yield strength is 310Mpa, min. tensile strength 440Mpa. For 09CuPCrNi-A steel sheets >4mm, the min. yield strength is 345Mpa, min. tensile strength 480Mpa.

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