ASTM A333 Gr.3 seamless steel pipe/tube is a seamless alloy steel pipe.ASTM A333 Gr.3 seamless steel pipe is widely used in industries such as petroleum, chemical, power, gas, water, metallurgy, shipbuilding, construction, etc.
ASTM A333 Gr.3 seamless steel pipe Chemical Requirements
| Element | Composition, % |
| Carbon, max | 0.19 |
| Manganese | 0.31-0.64 |
| Phosphorus, max | 0.025 |
| Sulfur, max | 0.025 |
| Silicon | 0.18-0.37 |
| Nickel | 3.18-3.82 |
ASTM A333 Gr.3 seamless steel pipe Mechanical Properties
| psi | MPa | |
| Tensile strength, min | 65 000 | 450 |
| Yield strength, min | 35 000 | 240 |
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