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ASNSWER: HX300BD+AS is a Hot dip Aluminized steel material grade under EN10346 standard, HX300BD+AS also should be called Aluminium-Silicon(AS) steel, because it’s surface coating is 92%-89% Al + 8%-11% Si.
HX300BD+AS Aluminized steel have three level Surface quality, they are : As coated surface (A), Improved surface (B), Best quality surface(C). Usually the standard surface quality we supplied is Level B.
The material grade of HX300BD+AS is 1.0930+AS.
HX300BD+AS Aluminium-Silicon(AS) Coating masses are : AS60, AS80, AS100, AS120, AS150 However the Surface treatment are C,O,CO,U,P, PO, S
HX300BD+AS steel chemical composition % by mass max
C |
Si |
Mn |
P |
S |
Ti |
Nb |
0.11 |
0.50 |
0.80 |
0.12 |
0.025 |
0.12 |
0.09 |
HX300BD+AS is the high strength quality Aluminized steel, so it request a good Elongation request.
Yield strength is 300-360MPa
Tensile strength is 400-480MPa
Elongation A80 is not less than 26%
Bake-Hardenning-Index BH2 should be not less than 35MPa