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MOQ: | 1 |
Price: | Negotiable |
Standard Packaging: | Standard Export Packing |
Delivery Period: | 7~30 working days |
Payment Method: | L/C, D/A, D/P, T/T, Western Union |
Parameter | Description |
---|---|
Grades | GB/T6479 Q345D, Q345E |
Material | Carbon and Low-Alloy Steel (Seamless) |
Standard | GB/T6479 |
Size Range | Various diameters and wall thicknesses as per GB/T6479 |
Length | Standard lengths, customizable upon request |
Ends | Plain ends, beveled ends, threaded, or socket-weld ends |
Surface Treatment | As-rolled, annealed, or normalized |
Property | Q345D Requirement | Q345E Requirement |
---|---|---|
Tensile Strength | ≥440 MPa (64,000 psi) | ≥470 MPa (68,000 psi) |
Yield Strength | ≥275 MPa (40,000 psi) | ≥275 MPa (40,000 psi) |
Elongation | ≥21% | ≥21% |
Hardness | Varies depending on heat treatment |
Element | Typical Range (%) for Q345D | Typical Range (%) for Q345E |
---|---|---|
Carbon | 0.18 - 0.22 | 0.18 - 0.22 |
Manganese | ≤1.70 | ≤1.70 |
Phosphorus | ≤0.025 | ≤0.025 |
Sulfur | ≤0.025 | ≤0.025 |
Silicon | ≤0.55 | ≤0.55 |
Chromium | - | ≤0.30 |
Nickel | - | ≤0.50 |
![]() |
MOQ: | 1 |
Price: | Negotiable |
Standard Packaging: | Standard Export Packing |
Delivery Period: | 7~30 working days |
Payment Method: | L/C, D/A, D/P, T/T, Western Union |
Parameter | Description |
---|---|
Grades | GB/T6479 Q345D, Q345E |
Material | Carbon and Low-Alloy Steel (Seamless) |
Standard | GB/T6479 |
Size Range | Various diameters and wall thicknesses as per GB/T6479 |
Length | Standard lengths, customizable upon request |
Ends | Plain ends, beveled ends, threaded, or socket-weld ends |
Surface Treatment | As-rolled, annealed, or normalized |
Property | Q345D Requirement | Q345E Requirement |
---|---|---|
Tensile Strength | ≥440 MPa (64,000 psi) | ≥470 MPa (68,000 psi) |
Yield Strength | ≥275 MPa (40,000 psi) | ≥275 MPa (40,000 psi) |
Elongation | ≥21% | ≥21% |
Hardness | Varies depending on heat treatment |
Element | Typical Range (%) for Q345D | Typical Range (%) for Q345E |
---|---|---|
Carbon | 0.18 - 0.22 | 0.18 - 0.22 |
Manganese | ≤1.70 | ≤1.70 |
Phosphorus | ≤0.025 | ≤0.025 |
Sulfur | ≤0.025 | ≤0.025 |
Silicon | ≤0.55 | ≤0.55 |
Chromium | - | ≤0.30 |
Nickel | - | ≤0.50 |