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What is SS400 steel?

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Quick Answer

According to Material Grades, SS400 steel is defined in JIS G 3101 standard, which is a Japanese material standard for general structural usage, sheets, strips and rolled steel plates. They are also supplied as bars, flats and sections and excel in machinability and weldability.

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Full Answer

The melting point of SS400 steel is 1430 degrees Celsius. The DN equivalent for JIS SS400 is 17100 St 44-2; the ASTM equivalents are ASTM A36 and ASTM A283 Grade D; and the EN equivalents are EN S275 and BS 43A. Material Grades states that SS400 steel has a more reliable tensile strength than SS330 steel. The thickness of SS400 steel is between 6 and 20 millimeters.

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