Description
| Standard: | API, ASTM, BS, DIN, GB, JIS |
| Certification: | API |
| Surface Treatment: | Brown painting |
| Alloy Or Not: | Non-alloy |
| OD: | 1/2″-10″ |
| Secondary Or Not: | Non-secondary |
| Application: | Hydraulic Pipe |
| fixed length: | 6 meter,5.8meter |
| Technique: | Cold Drawn |
| Packaging Details: | n bundle,plastic |
| Brand name: | Sino East Steel Group |
| Delivery Time: | 20-30days |

| Certificates: | API, ISO |
| Process Method: | Cold Drawn,cold rolled,Hot rolled,ERW,ERW,EFW |
| Face finished: | Galvanized,Manual polished,mechanical polished,black paint on the face |
| Usage Range: | structral pipe,oil or gas transportation,oil or gas transportation,line pipe. |
| packing: | PP,PE,Bundle,caps both ends,according to customer requirement |
Sino East, a high quality seamless steel pipe manufacturer in China with more than fifteen years history! Our steel pipe products are widely used in big projects domestic and abroad!
Carbon seamless steel pipe detailed information is listed below for your reference:

Need a Quote for This Product?
Send your specs (grade, size, quantity, destination port) — our export team replies within 10 business hours with FOB pricing.
Or WhatsApp: +86 186 2208 8833
B2B Ordering FAQ
What is the MOQ for this product?
Our standard MOQ is 5 metric tons for stock sizes. Full-container orders (20ft/40ft) get the best unit price; smaller trial orders are available for new customers.
What is the delivery time?
Stock items ship within 7-10 days after deposit. Custom sizes and special coatings take 15-25 days depending on the specification.
What trade terms do you support?
We quote FOB Tianjin as standard, and also support CIF, CFR, and DDP to major ports worldwide. Payment: T/T 30% deposit + 70% against B/L copy, or L/C at sight.
Can I get a sample before bulk order?
Yes. Sample pieces are available at cost price with shipping charged to the buyer; the sample fee is deducted from the first bulk order.
Do you provide mill test certificates?
Yes, every shipment includes MTC (Mill Test Certificate) covering chemical composition and mechanical properties, plus SGS inspection on request.
API 5L PSL1 & PSL2 Seamless Line Pipe Engineering Matrix
Sino East Steel manufactures and exports certified API Spec 5L (PSL1 & PSL2) and ASTM A106 Grade B seamless carbon steel line pipes engineered for high-pressure petroleum, natural gas, refining, and subsea pipeline infrastructure. Fully compliant with international oilfield specifications and West African regulatory standards (including Nigeria SONCAP, Form M, and NXP requirements).
1. Mechanical Properties & Chemical Composition (PSL1 vs PSL2)
| Steel Grade | Min Yield Strength (MPa / psi) | Min Tensile Strength (MPa / psi) | PSL Level | Charpy V-Notch Impact Test | Standard Applications |
|---|---|---|---|---|---|
| Grade B | 245 MPa (35,500 psi) | 415 MPa (60,200 psi) | PSL1 / PSL2 | Required on PSL2 (0°C / -20°C) | General oil/gas gathering & refinery lines |
| X42 / L290 | 290 MPa (42,100 psi) | 415 MPa (60,200 psi) | PSL1 / PSL2 | ≥ 27 J average @ 0°C | Medium pressure cross-country transmission |
| X52 / L360 | 360 MPa (52,200 psi) | 460 MPa (66,700 psi) | PSL1 / PSL2 | ≥ 40 J average @ -20°C | High pressure gas trunk lines & flowlines |
| X60 / L415 | 415 MPa (60,200 psi) | 520 MPa (75,400 psi) | PSL2 | ≥ 45 J average @ -20°C | Heavy duty onshore/offshore line pipe |
| X65 / L450 | 450 MPa (65,300 psi) | 535 MPa (77,600 psi) | PSL2 | ≥ 50 J average @ -20°C / -30°C | Subsea pipeline & sour service (H2S NACE MR0175) |
2. 3LPE / 3LPP / FBE Anti-Corrosion Coating Specifications
For buried cross-country oil pipelines in tropical, marshland, and saline soil environments (such as Niger Delta, Port Harcourt, and Lagos offshore fields), Sino East Steel applies automated 3-Layer Polyethylene (3LPE) and Fusion Bonded Epoxy (FBE) coatings:
- Standard Compliance: DIN 30670, ISO 21809-1, CAN/CSA Z245.20, AWWA C213.
- Layer Structure: Layer 1: Fusion Bonded Epoxy primer (≥ 100 µm) | Layer 2: Copolymer adhesive (≥ 170-250 µm) | Layer 3: High-density polyethylene topcoat (1.8 mm to 3.7 mm).
- Testing & Inspection: 100% Spark Holiday Detection (25 kV non-destructive testing), Cross-cut adhesion test, Peel strength test (≥ 100 N/cm @ 23°C).
3. Nigeria (West Africa) Ocean Shipping, Container Loads & Port Transit
| Destination Port (Nigeria) | Direct Ocean Transit Time | 20GP Container Max Load | 40GP / 40HQ Max Load | Customs & Documentation |
|---|---|---|---|---|
| Lagos Port (Apapa / Tin Can Island) | 35 – 40 Days | 26.0 – 26.5 Metric Tons (5.8m / 6.0m) | 26.5 – 27.5 Metric Tons (11.8m / 12.0m) | SONCAP Certificate, Form M, NXP, CCVO |
| Onne Port (Oil & Gas Free Zone, Rivers State) | 38 – 42 Days | 26.0 – 26.5 Metric Tons | 26.5 – 28.0 Metric Tons | OGFZ Direct Clearance, MTC EN 10204 3.2 |
| Port Harcourt (Rivers State) | 38 – 45 Days | 26.0 Metric Tons | 27.0 Metric Tons | SONCAP Product Certificate, SGS/BV Inspection |
Need API 5L Seamless Line Pipe CIF Lagos / Onne Quotation?
Direct mill pricing, full MTC EN 10204 3.1/3.2, SONCAP certificate assistance, and bevel protection caps included.
⚡ Quick RFQ & Instant CIF Quotation
Inquiring about api 5l grade b seamless carbon seamless steel pipe supplier? Contact our export engineering team for 2026 FOB/CIF pricing, MTC 3.1 certificates, and 20GP container loading calculations.







