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ANSWER: JFS A 1001 JSH400J steel is the hot rolled steel sheet and strip for automobile use .
JSH400J pickled steel is under the Japanese standard JFS A 1001. JSH400J commercial automobile use steel is commercial quality, the thickness range of JSH400J is from 1.6mm to 14.0mm. The Carbon chemical composition of JSH400J is max 0.25%. The tensile strength of JSH400J steel is min 400 MPa. The yield strength of JSH400J steel is 235MPa to 395MPa, The elongation of JSH400J steel is min 31%.
There are three different surface finish of the JSH400J steel: B ( As hot rolled), P (pickling), S ( Shot blasting)