API 5L Line Pipe Manufacturer & Supplier in China
Our API 5L Line Pipe Product Range
Factory-direct api 5l line pipe from our Tianjin plant, with MTC per EN 10204 3.1 on every shipment to Russia and Central Asia. Click a product for full specifications and a quote within 24 hours.
API 5L Grade B Line Pipe
API 5L PSL1 / PSL2 | 21.3-1,220 mm OD, SCH10-SCH160
ERW, SSAW, LSAW and seamless Grade B line pipe for oil, gas and water transmission, manufactured at our Tianjin plant with MTC…
API 5L X42 Line Pipe
API 5L PSL1 / PSL2 | 21.3-1,220 mm OD
X42 line pipe for medium-pressure gathering lines and distribution networks, supplied with GOST-compatible documentation for EA…
API 5L X52 Line Pipe
API 5L PSL2 | 21.3-1,220 mm OD
High-yield X52 line pipe for gas trunk lines and cross-country pipelines, impact-tested for cold-climate service in Russia and…
API 5L X60 Line Pipe
API 5L PSL2 | 21.3-1,220 mm OD
X60 grade line pipe for high-pressure transmission systems, with controlled chemistry and mandatory impact testing.
API 5L X65 Line Pipe
API 5L PSL2 | 21.3-1,220 mm OD
X65 line pipe for sour service, offshore and Arctic-grade projects where fracture toughness is critical.
API 5L X70 Line Pipe
API 5L PSL2 | 21.3-1,220 mm OD
Highest-strength API 5L grade for large-diameter trunk lines and high-pressure gas transmission.
API 5L Seamless Line Pipe
API 5L PSL1 / PSL2 | 21.3-406.4 mm OD, SCH10-SCH160
Seamless API 5L pipe for critical pressure duty, refinery piping and gathering lines, with complete heat number traceability.
API 5L LSAW / SSAW Line Pipe
API 5L PSL2 | 406.4-1,220 mm OD
Large-diameter LSAW and SSAW welded line pipe for main transmission lines, water injection and infrastructure projects.
Why Buy API 5L Line Pipe Direct from a Chinese Factory
Importers and distributors who source API 5L line pipe directly from our factory in Tianjin benefit from the complete manufacturing chain under one roof: steel input selection, production, surface treatment, quality testing, packing and export documentation. This integrated model removes trading markups and ensures that the specification approved in the quotation is the specification delivered.
- Direct factory pricing with no trading company markup
- Full quality control from steel input to finished product
- Complete documentation: MTC per EN 10204 3.1 on every shipment
- Flexible payment terms: T/T, L/C, D/A, D/P and O/A for long-term partners
- English and Russian sales support with a reply within 24 hours
- Sea freight to St. Petersburg, Novorossiysk, Vladivostok plus main EAEU ports
Range and Specifications of Our API 5L Line Pipe
| Standard | API 5L PSL 1 / PSL 2 |
| Available Grades | A, B, X42, X46, X52, X56, X60, X65, X70 |
| Size Range | 21.3 – 1,220 mm (ERW / SSAW / LSAW / seamless) |
| Surface / Finish | Black, bare, with beveled ends |
| Certification | ISO 9001:2015, MTC per EN 10204 3.1, SGS / BV / TUV inspection available |
| Packaging | Seaworthy export packing, bundled or palletized per product |
| MOQ | 25 metric tons per size |
| Production Time | 15-25 days after specification confirmation |
| Payment | T/T, L/C, D/A, D/P, O/A |
How to Choose a Reliable Supplier in China
When comparing suppliers, buyers should evaluate five factors before placing a first order: factory ownership, documentation completeness, testing capability, delivery reliability and communication. A genuine factory supplier can show production lines, heat number traceability and in-house testing; a trading company can only relay documents.
- Verify factory ownership and production capacity
- Request the MTC and test reports from recent shipments
- Confirm the governing standard and grade for every size
- Agree on packing, marking and documentation requirements in writing
- Start with a sample or small order to verify product and service quality
Global Supply Capabilities and Export Markets
Sino East Steel operates within a 65,000 m² plant in Daqiuzhuang Industrial Park, Jinghai District, Tianjin, with an annual capacity of 500,000 metric tons across all product lines. We export to more than 50 countries, with growing demand from Russia and the CIS for certified steel products.
- Monthly rolling production plans reserve capacity for scheduled deliveries
- Container consolidation programs combine multiple product lines
- Dedicated export team with multi-market documentation experience
- Distribution agreements and exclusive-territory arrangements available
Quality, Certification and Factory Audit
Our factory operates under an ISO 9001:2015 quality management system, and every production batch is tested in accordance with the governing specification: chemical analysis, mechanical testing, dimensional checks and product-specific tests. Every item is traceable to its heat number through the Mill Test Certificate (MTC) per EN 10204 3.1. SGS, BV and TUV inspections can be arranged before loading.
How to Order as an Importer
- Send your required standard, grade, size, quantity and destination port
- Receive a formal quotation with delivery time and shipping options within 24 hours
- Confirm the specification in writing; production starts after order confirmation
- Track your shipment with full export documentation until arrival at the destination port
Frequently Asked Questions
What is the MOQ?
The MOQ is typically 25 metric tons per size, with mixed-size container loads of 20 or 40 feet welcomed for distributors.
What are your payment terms?
We accept T/T, L/C, D/A, D/P and O/A for long-term partners, with terms confirmed in the quotation for each order.
What is the production and shipping lead time?
Production takes 15-25 days after specification confirmation, followed by sea freight to St. Petersburg, Novorossiysk and main EAEU ports.
Can third-party inspection be arranged?
Yes, inspection by SGS, BV or TUV can be arranged at the factory before loading or at the destination port.
Do you support OEM and custom requirements?
Yes, we support OEM orders including custom sizes, finishes, packing marks and documentation, subject to MOQ.
Explore Our API 5L Line Pipe Range
Browse the full product range: API 5L Line Pipe category.
Request a Quote for Api 5L Line Pipe Manufacturer
Factory-direct price, MTC per EN 10204 3.1, EAC/GOST documentation and delivery to Russia and Central Asia. Our export desk replies within 24 hours.
Prefer email? Write to [email protected] or call / WhatsApp +86 186 2208 8833.