1. Standard
ASTM Standard:ASTM A 789M2. Chemical Composition
Elements | C | Mn | P | S | Si | Cr | Mo | Ni | N | Cu | W | PRE |
Min | 24.0 | 3.0 | 6.0 | 0.20 | 0.50 | 0.50 | 40 | |||||
Max | 0.030 | 1.0 | 0.030 | 0.010 | 1.00 | 26.0 | 4.0 | 8.0 | 0.30 | 1.00 | 1.00 | |
Actual value | 0.013 | 0.78 | 0.023 | 0.0005 | 0.4 | 25.36 | 3.4 | 7.13 | 0.28 | 0.59 | 0.65 | 42.13 |
3.Mechanical Properties
Mechanical Properties |
Tensile Strength MPa |
Yield Strength MPa |
Elongation % |
Hardness HBW/HRC |
IMPact J (0℃,55*10*10) |
Min | 750 | 550 | 25 | ||
Max | 310/32 | ||||
Actual value | 796 | 614 | 37 | 26.7 | 166 |
4. Typical Size
Size |
Outside Diameter mm |
Permissible Variations in Outside Diameter mm |
Wall Thickness mm |
Average Wall Permissible Variations in Wall Thickness |
95*22.25 | 95 | ±0.38 | 22.25 | ±10%S |