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ASNSWER: A463 DDS is a Hot dip Aluminized steel material grade under ASTMA463/A463M standard.
Different from the European standard Aluminized steel, A463 DDS coating has two types. One is AS coating type (95%-89% Al + 5%-11% Si ) ; the second is Pure Aluminium coating.
A463 DDS Coating masses (g/m2): T1M40, T1M75, T1M120, T1M300, T2MLC, T2M200, T2M300
However the Surface treatment are C,O, Dry
A463 DDS chemical composition % by mass max
Mn |
P |
S |
Ti |
Cu |
Ni |
Cr |
C |
0.50 |
0.020 |
0.025 |
0.30 |
0.20 |
0.20 |
0.15 |
0.06 |
A463 DDS is the deep drawing quality Aluminized steels, so it request a good Elongation request.
Yield strength is: 140-240 MPa
Elongation A80 is: not less than 32%
R value 1.2-1.7
N value 0.19-0.24