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Standard Specification for ASTM A105
| Grade | A105 |
| Standard | ASTM A105/A105M-2018 |
| Standard Specification for Carbon Steel Forgings for Piping Applications | |
| Classification | Carbon structural steel |
| Introductions | Used in the production of machinery, hydraulic, machine tools, ships, lifting equipment, such as shaft, connecting rod, crankshaft, crank pin, gear, roll, slewing support, valve body. |
| A105 Chemical Element Content (%) | |||||||||||
| Constituent | C | Si | Mn | P | S | Cr | Ni | Cu | Mo | V | More |
| Min | – | 0.1 | 0.6 | – | – | – | – | – | – | – | Cu+Ni+Cr+Mo+V≤1.00；Cr+Mo≤0.32 |
| Max | 0.35 | 0.35 | 1.05 | 0.035 | 0.04 | 0.3 | 0.4 | 0.4 | 0.12 | 0.08 | |
| A105 Mechanical properties | ||||||
| Condition | Heat treatment | Tensile Strength | Yield stress | Elongation | Reduction of area | Hardness |
| t | N,NT,Or QT | σb | σs | δ | ψ | HBW |
| mm | Mpa | Mpa | % | % | ||
| Forging | ≥485 | ≥250 | ≥30 | ≥30 | 137~197 | |
| • Brand suffix letter: A– annealing; N– normalizing; NT– normalizing + tempering; QT– Quench + temper, example A105NT | ||||||
