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ASTM A572 steel material is a High-Strength Low-Alloy Steel Plate for structural building. There are five class grades under ASTM A572 stanard: Grade 42, Grade 50, Grade 55, Grade 60 and Grade 65.
|
Grades |
MPa [ksi] |
MPa [ksi] |
min. 200 mm[8 in.] |
min. 50 mm[2 in.] |
|
A572Gr42 |
≥290 [42] |
≥415 [60] |
20 |
24 |
|
A572Gr50 |
≥345 [50] |
≥450 [65] |
18 |
21 |
|
A572Gr55 |
≥380 [55] |
≥485 [70] |
17 |
20 |
|
A572Gr60 |
≥415 [60] |
≥520 [75] |
16 |
18 |
|
A572Gr65 |
≥450 [65] |
≥550 [80] |
15 |
17 |
|
Grades |
C max. % |
Mn % |
S% |
P max% |
Si |
|
A572Gr42 |
0.21 |
≤1.35 |
0.05 |
0.04 |
≤0.04 |
|
A572Gr50 |
0.23 |
≤1.35 |
0.05 |
0.04 |
≤0.04 |
|
A572Gr55 |
0.25 |
≤1.35 |
0.05 |
0.04 |
≤0.04 |
|
A572Gr60 |
0.26 |
≤1.35 |
0.05 |
0.04 |
≤0.04 |
|
A572Gr65 |
0.23 |
≤1.65 |
0.05 |
0.04 |
≤0.04 |
