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ANSWER: ASTM A1008 BHS steel is Bake hardenable steel, “BH” means Bake hardenable.
ASTM A1008 BHS steel has five grades, they are :A1008 BHS grade 26(180), A1008 BHS grade 31(210), A1008 BHS grade 35(240), A1008 BHS grade 41(280), A1008 BHS grade 44(300).
The carbon composition of all the above grades is max 0.12%.
The yield strength of A1008 BHS grade 26(180) min 180MPa, tensile strength is min 300 Mpa, Elongation 50mm is min 30%; Bake hardening index, min upper yield/lower yield: 25/20
The yield strength of A1008 BHS grade 31(210) is min 210MPa, tensile strength is min 320Mpa, Elongation 50mm is min 28%;min upper yield/lower yield: 25/20
The yield strength of A1008 BHS grade 35(240) is min 240MPa, tensile strength is min 340 Mpa, Elongation 50mm is min 24%;min upper yield/lower yield: 25/20
The yield strength of A1008 BHS grade 41(280) is min 280MPa, tensile strength is min 370 Mpa, Elongation 50mm is min 22%;min upper yield/lower yield: 25/20
The yield strength of A1008 BHS grade 44(300) is min 300MPa, tensile strength is min 390 Mpa, Elongation 50mm is min 20%;min upper yield/lower yield: 25/20
