China ASTM A387 Gr. 22 Cl. 1 (Or CL. 2) 32 X 2000 X 6000mm Boiler Steel Plate, Find details about China ASME SA387, ASTM A387 Gr. 11 from ASTM A387 Gr. 22 Cl. 1 (Or CL. 2) 32 X 2000 X 6000mm Boiler Steel Plate
Most commonly used steel specifications for Chrome Moly plate are ASME SA387 and ASTM A387
Chemical Requirements
GR. 2 | GR. 12 | GR. 11 | GR. 22 | GR. 22L | GR. 21 | GR. 21L | GR. 5 | GR. 9 | GR. 91* | |
C | 0.05-0.21 | 0.05-0.17 | 0.05-0.17 | 0.05-0.15 | 0.10 | 0.05-0.15 | 0.10 | 0.15 | 0.15 | 0.08-0.12 |
Mn | 0.55-0.80 | 0.40-0.65 | 0.40-0.65 | 0.30-0.60 | 0.30-0.60 | 0.30-0.60 | 0.30-0.60 | 0.30-0.60 | 0.30-0.60 | 0.30-0.60 |
P | 0.025 | 0.025 | 0.025 | 0.025 | 0.025 | 0.025 | 0.025 | 0.025 | 0.025 | 0.020 |
S | 0.025 | 0.025 | 0.025 | 0.025 | 0.025 | 0.025 | 0.025 | 0.025 | 0.025 | 0.010 |
Si | 0.15-0.40 | 0.15-0.40 | 0.50-0.80 | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 | 1.00 | 0.20-0.50 |
Cr | 0.50-0.80 | 0.80-1.15 | 1.00-1.50 | 2.00-2.50 | 2.00-2.50 | 2.75-3.25 | 2.75-3.25 | 4.00-6.00 | 8.00-10.00 | 8.00-9.50 |
Mo | 0.45-0.60 | 0.45-0.60 | 0.45-0.65 | 0.90-1.10 | 0.90-1.10 | 0.90-1.10 | 0.90-1.10 | 0.45-0.65 | 0.90-1.10 | 0.85-1.05 |
V | - | - | - | - | - | - | - | - | 0.04 | 0.18-0.25 |
Tensile Requirements
Class 1 Plates
GRADE | TENSILE (MPA) | YIELD (MPA) | ELONG. (50MM) | REDUC'N OF AREA* |
2, 12 | 380 - 550 | 230 min | 22% min | - |
11 | 415 - 585 | 240 min | 22% min | - |
22, 21, 5, 9 | 415 - 585 | 205 min | 18% min | 40% min |
21L, 22L | 415 - 585 | 205 min | 18% min | 40% min |
Class 2 Plates
GRADE | TENSILE (MPA) | YIELD (MPA) | ELONG. (50 MM) | REDUC'N OF AREA* |
2 | 485 - 620 | 310 min | 22% min | - |
11 | 515 - 690 | 310 min | 22% min | - |
12 | 450 - 585 | 275 min | 22% min | - |
22, 21, 5, 9 | 515 - 690 | 310 min | 18% min | 40% min |
91 | 585 - 760 | 415 min | 18% min | - |