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Chemical Composition(%) | |||||||||||
Standard | Grade | C | Si | Mn | P | s | Ni | Cr | Cu | Mo | V |
GB/T8163 | 10 | 0.07-0.13 | 0.07-0.37 | 0.35-0.65 | ≤0.035 | ≤0.035 | ≤0.30 | ≤0.15 | ≤0.25 | - | - |
20 | 0.17-0.23 | 0.17-0.37 | 0.35-0.65 | ≤0.035 | ≤0.035 | ≤0.30 | ≤0.25 | ≤0.25 | - | - | |
Q345A | ≤0.20 | ≤0.55 | 1.00-1.60 | ≤0.045 | ≤0.045 | ≤0.30 | ≤0.30 | ≤0.30 | - | - | |
Q345B | ≤0.20 | ≤0.55 | 1.00-1.60 | ≤0.040 | ≤0.040 | ≤0.30 | ≤0.30 | ≤0.30 | - | - | |
Q345C | ≤0.20 | ≤0.55 | 1.00-1.60 | ≤0.035 | ≤0.035 | ≤0.30 | ≤0.30 | ≤0.30 | - | 0.02-0.15 | |
Q345D | ≤0.18 | ≤0.55 | 1.00-1.60 | ≤0.030 | ≤0.030 | ≤0.30 | ≤0.30 | ≤0.30 | - | 0.02-0.15 | |
Q345E | ≤0.18 | ≤0.5 | 1.00-1.60 | ≤0.025 | ≤0.025 | ≤0.30 | ≤0.30 | ≤0.30 | - | 0.02-0.15 | |
ASTMA53M | A | ≤0.25 | - | ≤0.95 | ≤0.05 | ≤0.045 | ≤0.40 | ≤0.40 | ≤0.40 | ≤0.15 | ≤0.08 |
B | ≤0.30 | - | ≤1.20 | ≤0.05 | ≤0.045 | ≤0.40 | ≤0.40 | ≤0.40 | ≤0.15 | ≤0.08 | |
ASTMA106M | A | ≤0.25 | ≥0.10 | 0.27-0.93 | ≤0.035 | ≤0.035 | ≤0.40 | ≤0.40 | ≤0.40 | ≤0.15 | ≤0.08 |
B | ≤0.30 | ≥0.10 | 0.29-1.06 | ≤0.035 | ≤0.035 | ≤0.40 | ≤0.40 | ≤0.40 | ≤0.15 | ≤0.08 | |
C | ≤0.35 | ≥0.10 | 0.29-1.06 | ≤0.035 | ≤0.035 | ≤0.40 | ≤0.40 | ≤0.40 | ≤0.15 | ≤0.08 | |
Chemical Composition(%) | |||||||||||
stand | Grade | C | Si | Mn | P | S | Ni | Cr | Cu | Mo | V |
JIS G 3454 | STPG 370 | ≤0.25 | ≤0.35 | 0.30-0.90 | ≤0.040 | ≤0.040 | - | - | - | - | - |
STPG410 | ≤0,30 | ≤0.35 | 0.30-1.00 | ≤0.040 | ≤0.040 | - | - | - | - | - | |
JIS G 3455 | STS 370 | ≤0.25 | 0.10-0.35 | 0.30-1.10 | ≤0.035 | ≤0.035 | - | - | - | - | - |
STS 410 | ≤0.30 | 0.10-0.35 | 0.30-1.40 | ≤0.035 | ≤0.035 | - | - | - | - | - | |
STS 480 | ≤0.33 | 0.10-0.35 | 0.30-1.50 | ≤0.035 | ≤0.035 | - | - | - | - | - | |
JIS G 3456 | STPT370 | ≤0.25 | 0.10-0.35 | 0.30-0.90 | ≤0.035 | ≤0.035 | - | - | - | - | - |
STPT410 | ≤0.30 | 0.10-0.35 | 0.30-1.00 | ≤0.035 | ≤0.035 | - | - | - | - | - | |
STPT480 | ≤0.33 | 0.10-0.35 | 0.30-1.00 | ≤0.035 | ≤0.035 | - | - | - | - | - |
Mechanical Properties | |||||||
Standard | Grade | Tensile strength (MPa) |
Yield Strength | Elongation | Impact test | ||
emperature | Absorbed evergy | ||||||
≥16mm | >16mm | ||||||
GB/T8163 | 10 | 335-475 | ≥205 | ≥195 | ≥24 | - | - |
20 | 410-530 | ≥245 | ≥235 | ≥20 | - | - | |
Q345A | 470-630 | 345 | 325 | 20 | - | - | |
Q345B | 470-630 | 345 | 325 | 20 | 20 | 34 | |
Q345C | 470-630 | 345 | 325 | 21 | 0 | 34 | |
Q345D | 470-630 | 345 | 325 | 21 | -20 | 34 | |
Q345E | 470-630 | 345 | 325 | 21 | -40 | 27 | |
ASTMA53M | A | ≥330 | ≥205 | See table 3 of ASTM A 53 | - | - | |
B | ≥415 | ≥240 | |||||
ASTM A 106M | A | ≥330 | ≥205 | See table 4 of ASTM A 106 | - | - | |
B | ≥415 | ≥240 | |||||
C | ≥485 | ≥275 | |||||
JIS G 3454 | STPG 370 | ≥215 | ≥370 | See table3-2 of JIS G 3454 | - | - | |
STPG 410 | ≥245 | ≥410 | |||||
JIS G 3455 | STS 370 | ≥215 | ≥370 | See table3-2 of JIS G | - | - | |
STS410 | ≥245 | ≥410 | |||||
STS 480 | ≥275 | ≥480 | |||||
JIS G3456 | STPT370 | ≥215 | ≥370 | See table3-2 of JIS G 3456 | - | - | |
STPT410 | ≥245 | ≥410 | |||||
STPT480 | ≥275 | ≥480 |