Chemical Composition of Sheets/ Plates | ||||||||||
ASTM | Grade | C max | Mn max | P max | S max | Si max | Ni | Cr | Mo | Others |
A387 Class 1 Class 2 | 5 | 0.15 | 0.30-0.60 | 0.04 | 0.03 | 0.5 |
|
4.00-6.00 | 0.45-0.65 |
|
|
9 | 0.15 | 0.30-3.60 | 0.03 | 0.3 | 1 |
|
8.00-10.0 | 0.90-1.10 |
|
|
11 | 0.04-0.17 | 0.40-0.65 | 0.04 | 0.04 | 0.50-0.80 |
|
1.00-1.50 | 0.45-0.65 |
|
|
12 | 0.04-0.17 | 0.40-0.65 | 0.04 | 0.04 | 0.15-0.40 |
|
0.80-1.15 | 0.45-0.60 |
|
|
22 | 0.05-0.17 | 0.30-0.60 | 0.04 | 0.035 | 0.5 |
|
2.00-2.50 | 0.90-1.10 |
|
|
Mechanical Requirements | Hardness | ||||||
ASTM | Grade | Tensile Strength Apa (ksi) min | Yield Strength Mpa (ksi)min |
|
Elongation min% | Brinel max HB | Rockwell max HRB | |
|
|
Class 1 | Class 2 | Class1 | Class2 |
|
|
|
A387 Class 1 Class 2 | 5 | 415-585 | 515-690 | 205 | 310 | 18 | 202 | 92 |
9 | 415-585 | 515-690 | 205 | 310 | 18 | 217 | 95 | |
11 | 415-585 | 515-690 | 240 | 310 | 22 | 217 | 95 | |
12 | 380-550 | 450-585 | 230 | 275 | 22 | 217 | 95 | |
22 | 415-585 | 515-690 | 205 | 310 | 18 | 201 | 92 |
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