Seamless Steel Pipe Manufacturer & Supplier in China
Our Seamless Steel Pipe Product Range
Factory-direct seamless 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.
Seamless Carbon Steel Pipe A106
ASTM A106 Gr.B | 21.3-406.4 mm, wall 2.5-40 mm
ASTM A106 Grade B seamless pipe for high-temperature service in boilers, heat exchangers and refinery piping, with full MTC doc…
Seamless Steel Pipe GOST 8732
GOST 8732, GOST 8734 | 25-530 mm OD
Seamless pipe to GOST 8732/8734 in steel grades 10, 20 and 45, the standard choice for Russian and EAEU industrial projects.
Seamless Line Pipe API 5L
API 5L PSL1 / PSL2 | 21.3-406.4 mm OD
Seamless API 5L line pipe for oil and gas gathering lines, with impact testing available for cold-climate service.
Seamless Boiler Tube
ASTM A192, A210 | 25.4-127 mm OD
Seamless boiler and superheater tubes with certified chemical composition and mechanical testing for power and thermal plants.
Seamless Alloy Steel Pipe A335
ASTM A335 | 21.3-609.6 mm OD
Seamless alloy pipe for high-pressure steam and petrochemical service at elevated temperatures, with complete mill certificates.
Seamless Hydraulic Pipe
EN 10305-1, DIN 2391 | 6-120 mm OD
Cold-drawn seamless precision pipe for hydraulic cylinders and systems, with tight tolerances and smooth bore.
Seamless Mechanical Tube
ASTM A519, EN 10297-1 | 25-406.4 mm OD
Seamless mechanical tubing for shafts, rollers and structural components, in carbon and alloy steel grades.
Seamless Casing and Tubing Pipe
API 5CT | 114.3-339.7 mm (casing), 60.3-114.3 mm (tubing)
API 5CT seamless casing and tubing for oil and gas wells, with EUE/NUE threads and premium couplings available.
Why Buy Seamless Steel Pipe Direct from a Chinese Factory
Importers and distributors who source seamless 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 Seamless Steel Pipe
| Standard | ASTM A106 / A53, API 5L |
| Available Grades | Gr.B, X42-X70, 20#, 45# |
| Size Range | 21.3 – 406.4 mm, wall 2.5-40 mm |
| Surface / Finish | Black, varnished, 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 Seamless Steel Pipe Range
Browse the full product range: Seamless Steel Pipe category.
Request a Quote for Seamless 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.