A333 Grade 6 low-temperature steel pipe boasts high strength and hardness, complemented by excellent plasticity and toughness, with room temperature tensile strength ranging from 500 to 700 MPa, yield strength of 270 to 410 MPa, and elongation of 18% to 22%. Its resilience extends to lower temperatures, maintaining strength and hardness while exhibiting remarkable impact and fatigue resistance. Widely utilized in petrochemical, electric power, natural gas, shipbuilding, fertilizer, metallurgy, and aviation sectors, it shines particularly in the petrochemical industry, serving as a mainstay for oil and gas transportation. Characterized by a carbon content of 0.30% (max.), manganese varying from 0.29% to 1.06%, and low levels of phosphorus and sulfur (both max. 0.025%), its properties, including a minimum tensile strength of 415 MPa, yield strength of 240 MPa, and elongation of 30% (longitudinal) and 16.5% (transverse), render it invaluable for enduring harsh environments and delivering reliability in critical operations.
Attribute | Specification |
---|---|
Grade | A333Gr.6/3 |
Sizes | 1/8″ to 64″ |
Standards | ASTM |
Composition | |
Carbon (max.) | 0.30 |
Manganese | 0.29 – 1.06 |
Phosphorus (max.) | 0.025 |
Sulfur (max.) | 0.025 |
Properties | |
Tensile strength (min) (MPa) | 415 |
Yield strength (min) (MPa) | 240 |
Elongation (min) (%) | |
Longitudinal (L) | 30 |
Transverse (T) | 16.5 |
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