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API 5L X52 seamless line pipe, also known as L360, is a medium-grade steel pipe defined by a minimum yield strength of 360 MPa (52 Ksi). It complies with API 5L and ISO 3183 specifications. Available in PSL1 and PSL2 grades, it features surface treatments like black painting or varnish to prevent rust. It is widely used for oil and gas transmission, boiler tubes, and fluid transport.
| Material Grade | API 5L PSL1 / API 5L PSL2 / ISO 3183 | Standard | API 5L PSL1 / API 5L PSL2 / ISO 3183 |
| Thickness Range | SCH10, SCH40, SCH80, SCH160 | Width Range | N/A (Pipe OD) |
| Length Range | Random length or as customer's requirement | MOQ | 1 Ton |
| Lead Time | 7-15 days | Port of Shipment | Shanghai / Tianjin |
| C | ≤0.30% | Si | ≤0.10% |
| Mn | 0.29-1.06% | P | ≤0.035% |
| S | ≤0.035% | Yield Strength | ≥360 MPa |
| Tensile Strength | 460-760 MPa |
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