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ASK :
ASNSWER: DX55D+AS is a Hot dip Aluminized steel material grade under EN10346 standard, whose material No. is 1.0909+AS. DX55D+AS also should be called Aluminium-Silicon(AS) steel, because it’s surface coating is 92%-89% Al + 8%-11% Si.
DX55D+AS Aluminium-Silicon(AS) Coating masses are : AS60, AS80, AS100, AS120, AS150. However the Surface treatment are C,O,CO,U,P, PO, S
DX57D+AS steel chemical composition % by mass max:
|
C |
Si |
Mn |
P |
S |
Ti |
|
0.12 |
0.50 |
0.60 |
0.10 |
0.045 |
0.30 |
DX55D+AS steel Yield Strength should be not more than 240MPa, tensile strength should be not more than 370MPa, and Elongation A80 should be not less than 32%.
