API 5L X42 is a medium-strength carbon steel line pipe grade specified by the American Petroleum Institute (API) for transporting oil, natural gas, petroleum products, and water in the energy industry. As a seamless pipe, it offers superior pressure integrity and is preferred for high-pressure and critical-service applications.
Sino East Steel manufactures and exports API 5L X42 seamless pipe to 50+ countries across the Middle East, Africa, Southeast Asia, and South America.
| Property | API 5L X42 PSL1 | API 5L X42 PSL2 |
|---|---|---|
| Yield Strength (min) | 42,000 psi (290 MPa) | 42,000–72,000 psi (290–496 MPa) |
| Tensile Strength (min) | 60,000 psi (414 MPa) | 60,000–110,000 psi (414–758 MPa) |
| Elongation (min) | 23% (in 2") | 23% (in 2") |
| Carbon Equivalent (CE) | Not specified | ≤ 0.25% (typical) |
| Charpy Impact Test | Not required | Required at 0°C or specified temp |
| NDT (Non-Destructive Test) | Optional | Mandatory (full body UT/ET) |
| Traceability | By heat | Full traceability required |
| Element | PSL1 Max (%) | PSL2 Max (%) |
|---|---|---|
| Carbon (C) | 0.28 | 0.24 |
| Manganese (Mn) | 1.30 | 1.40 |
| Phosphorus (P) | 0.030 | 0.025 |
| Sulfur (S) | 0.030 | 0.015 |
| Silicon (Si) | — | 0.45 |
| Niobium (Nb) | — | 0.05 |
| Vanadium (V) | — | 0.05 |
| Titanium (Ti) | — | 0.04 |
| Parameter | Range |
|---|---|
| Outer Diameter | 2" — 48" (60.3 mm — 1,219 mm) |
| Wall Thickness | SCH 10 to SCH 160 / XXS (3.91 mm — 59.54 mm) |
| Pipe Length | SRL (Single Random: 5-7m), DRL (Double Random: 11-13m), or custom cut |
| End Finish | Plain end, beveled end (30° ±5°), threaded & coupled |
| Surface Coating | Black (bare/varnished), 3LPE, 3LPP, FBE, coal tar enamel |
| Sour Service | NACE MR0175 / ISO 15156 compliant on request |
| Coating Type | Temperature Range | Best For |
|---|---|---|
| 3LPE (3-Layer Polyethylene) | -40°C to +80°C | Buried onshore pipelines, water crossings |
| 3LPP (3-Layer Polypropylene) | -20°C to +140°C | High-temperature lines, offshore |
| FBE (Fusion Bonded Epoxy) | -40°C to +110°C | Directional drilling, rocky terrain |
All coatings are applied per DIN 30670, CSA Z245.21, or ISO 21809 standards with holiday detection testing.
Sino East Steel is an approved supplier of API 5L line pipe with full API Monogram and ISO 9001 certification. We ship to major ports including Jebel Ali, Dammam, Durban, Lagos, Mombasa, Chittagong, and Santos.