China supplier of ASTM A573 steel plate

China supplier of ASTM A573 carbon steel plates and sheets, exports the following grades for atmospheric temperature environment where improved notch toughness is important.
ASTM A573 Grade 58 [400]
ASTM A573 Grade 65 [450]
ASTM A573 Grade 70 [485]


ASTM A573 steel plate chemical composition (%)

Element
Grade 58
Grade 65
Grade 70
Carbon, ≤1/2" Thick
0.23
0.24
0.27
Carbon, >1/2"-1 1/2" Thick
0.23
0.26
0.28
Manganese
0.60-0.90
0.85-1.20
0.85-1.20
Phosphorus Max.
0.03
0.03
0.03
Sulfur Max.
0.03
0.03
0.03
Silicon
0.10-0.35
0.15-0.40
0.15-0.40


ASTM A573 steel mechanical properties

Grade
Yield Strength
Mpa min.
Tensile Strength
Mpa
Elongation min.%

in 200mm
Elongation min.%

in 50mm
A573 Grade 58
220[32]
400-490
21
24
A573 Grade 65
240[35]
450-530
20
23
A573 Grade 70
290[42]
485-620
18
21

 Our company can supply A573 Grade 70 carbon steel plates and sheets with limit thickness to a maximum 40mm. 
Done is better than perfect.

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