Welded Steel Pipe Manufacturer & Supplier in China
Our Welded Steel Pipe Product Range
Factory-direct welded steel 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.
ERW Carbon Steel Pipe A53
ASTM A53 Gr.B | 21.3-660 mm OD, wall 1.0-16 mm
Electric resistance welded pipe for structural, fencing and general service, manufactured on high-frequency ERW lines with weld…
ERW Steel Pipe GOST 10704
GOST 10704, GOST 10705 | 20-630 mm OD
ERW pipe to GOST 10704/10705 for water, gas and construction applications across the EAEU, with GOST certificates on request.
ERW Line Pipe API 5L
API 5L PSL1 / PSL2 | 21.3-660 mm OD
ERW pipe to API 5L for oil and gas gathering lines and water distribution, with hydrostatic testing on every length.
SSAW Spiral Welded Pipe
API 5L, GB/T 9711 | 219.1-1,220 mm OD
Spiral submerged arc welded pipe for water supply, piling, drainage and large-diameter low-pressure lines.
LSAW Longitudinal Welded Pipe
API 5L PSL2, EN 10219 | 406.4-1,220 mm OD
LSAW pipe with longitudinal submerged-arc weld for high-pressure transmission lines, marine structures and piling.
Welded Round Pipe EN 10219
EN 10219, ASTM A500 | 21.3-660 mm OD
Welded round hollow sections to EN 10219 for structural applications, with controlled tolerances and surface quality.
Welded Steel Water Pipe
GB/T 3091, EN 10217 | DN50-DN1200
Welded steel pipe for water supply and pressure pipelines, with optional FBE or bitumen coating for buried service.
Welded Steel Piling Pipe
ASTM A252 | 219.1-1,220 mm OD, wall 6-25 mm
Welded piling pipe to ASTM A252 for foundation works, bridge piers and marine structures, with bevelled ends for welding.
Why Buy Welded Steel Pipe Direct from a Chinese Factory
Importers and distributors who source welded steel 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 Welded Steel Pipe
| Standard | ASTM A53 / A36, API 5L |
| Available Grades | A, B, Q235, Q345 |
| Size Range | ERW 21.3-660 mm; SSAW / LSAW up to 1,220 mm |
| Surface / Finish | Black, bare or galvanized |
| 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 Welded Steel Pipe Range
Browse the full product range: Welded Steel Pipe category.
Request a Quote for Welded Steel 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.