Factory Direct API 5L Gr.B Seamless Carbon Steel Pipe Black Coating Stock
Factory Direct API 5L Gr.B Seamless Carbon Steel Pipe Black Coating Stock
1.Product Description
API 5L carbon steel pipe is manufactured to API Spec 5L for high-pressure transmission of oil, gas, and water. Grades range from B to X80, with the number indicating minimum yield strength in ksi. Processes include SMLS, LSAW, SSAW, ERW, and EFW. Quality levels PSL1 and PSL2, with PSL2 requiring stricter chemistry, toughness, and NDT coverage. OD 10.3mm～2032mm; wall thickness and length custom-engineered.
2. Product Applications
3. Product Advantages
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Grade selection matches duty: X52/X60 for medium pressure, X65/X70 standard for high-pressure trunks, X80 for wall thinning at high throughput
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PSL2 grades provide excellent low-temperature toughness with verified DWTT crack arrest
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Sour service series at ≤250HV10, HIC/SSC validated for H₂S environments
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Low CEV reduces preheat needs, improving field welding productivity
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Fully traceable with complete quality documentation per pipe
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Compatible with FBE, 3LPE, 3LPP coatings; 50+ years buried service life
4.Key Product Parameters
| Parameter | Value | |||
| Standard | API 5L (46th) / ISO 3183 / GB/T 9711 | |||
| Level | PSL1 / PSL2 / PSL2+Sour | |||
| Grade | B, X42, X52, X60, X65, X70, X80 | |||
| OD | SMLS 10.3～660mm; Welded 219～2032mm | |||
| WT | 3.2～60mm (extra by agreement) | |||
| Length | Fixed 6/9/12/18m; Random | |||
| C | ≤0.12% | Mn | ≤1.40% | |
| P | ≤0.025% | S | ≤0.015% | |
| CEV (X65) | ≤0.42% | |||
| Yield (MPa) | X52≥360 | X65≥450 | X70≥485 | X80≥555 |
| Tensile (MPa) | X52≥460 | X65≥535 | X70≥570 | X80≥625 |
| Y/T Ratio | ≤0.93 | |||
| Impact (–20℃) | X65 avg≥80J; X70 avg≥100J | |||
| Hardness (Sour) | ≤250HV10 | |||
| Ends | PE / BE 30~35° / TE | |||
| Hydrotest | Per API formula, hold ≥10s | |||
| NDT | Body UT; Welds RT/UT; Ends MPI | |||
| External Coat | FBE / 3LPE / 3LPP | |||
| Internal Coat | Drag-reducing (optional) | |||
| Docs | EN 10204 3.1/3.2 + test reports |
FAQ
1. Are you trading company or manufacturer ? We are manufacturer ,You can see the certification.
2.How long is your delivery time? Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
3. Do you provide samples ? is it free or extra ? Yes, we could offer the sample for free charge but need pay the cost of freight.
4. What is your terms of payment ? Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.
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