Tianjin Yuxinda specializes in API 5L line pipe, ASTM A106/A53 seamless carbon steel pipe and API 5CT casing & tubing for oil, gas, water and industrial projects. Related LSAW, boiler tube and coated products are available on request.
We publish one consistent indicative price band instead of hiding behind "contact us for price". Standard carbon-steel pipe: USD 690–780 per metric tonne FOB any Chinese port. For seamless pipe NPS 1″–10″ (OD 33.4–273.1 mm), the entry tier is USD 780 per tonne at 28–100 t and falls to USD 690 above 1,000 t. Coating, inspection and freight are listed separately so nothing appears on the invoice that was not in the offer.
Periodic reference price only — each order is subject to the signed contract.
Alloy steel pipe (ASTM A335 P11 / P22, GB 15CrMo / 12CrMoV): reference USD 780 per metric tonne FOB any Chinese port at 28–100 t. The 9Cr grades (A335 P91 / P92) are quoted per order.
Three product pages for buyers who specify by standard and by grade. Each page carries the grade comparison or the full size / wall thickness capability tables, so a technical buyer can check feasibility before the enquiry.
Piling, port and marine works, bridges, offshore and wind foundations. Ø406–1422 mm, tighter tolerance than line pipe. Reference price USD 690–780 per metric tonne FOB any Chinese port, subject to quantity and specification.
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Two capability tables: outside diameter 406–1422 mm, wall thickness up to 52.37 mm, grade by grade.
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Pure hydrogen, hydrogen blending and new-energy transmission: controlled chemistry, hardness limits, full NDT.
Open the pageHot-rolled and cold-drawn seamless pipe with no weld seam, produced from a pierced billet so the wall is continuous around the circumference. It is the default choice where pressure, temperature or bending stress rules out a welded seam.
Where it is used: oil, gas and water lines where a welded seam is not accepted; steam, condensate and compressed-air piping; boiler and heat-exchanger internals; hydraulic cylinders and machinery parts; structural and general engineering; fire-fighting and utility piping. It is the default choice whenever pressure, temperature, vibration or bending stress rules out a welded seam, or where the pipe has to be threaded, bent or machined on site. Reference price USD 690–780 per metric tonne FOB any Chinese port (band by quantity and specification) — reference only: grade, tonnage and final price are confirmed in the signed contract.
| Size | DN15 – DN600 (21.3 – 610 mm), ½" – 24" — standard sizes ex stock, other sizes and wall thicknesses made to order |
|---|---|
| Wall thickness | SCH10 – SCH XXS, 1 mm – 50.8 mm |
| Grades | API 5L Gr.B / X42 / X46 / X52 / X56 / X60 / X65 / X70; ASTM A106 Gr.A/B/C; ASTM A53 Gr.A/B; ASTM A333 Gr.1/6; ASTM A335 P1–P92 |
| Lengths | Random 5.8 – 11.8 m, SRL, DRL or fixed length |
| Ends | Plain, bevelled, threaded and coupled |
| Finish | Bare, black painted, 3PE / FBE coated, hot-dip galvanized |
Transmission pipe for oil, gas and water lines, supplied bare or with an external anti-corrosion system. We match the coating to the burial condition: 3PE and 3LPE for buried and wet service, FBE where the pipe is to be concrete weighted or the soil is aggressive, internal epoxy where the medium attacks carbon steel.
| Grades | Gr.B, X42, X46, X52, X56, X60, X65, X70 / L245 – L485 |
|---|---|
| Outside diameter | 2" – 56" (60.3 – 1422 mm) |
| Wall thickness | SCH10 – SCH XXS, 3.2 – 52 mm |
| Standard | API 5L PSL1 & PSL2, ISO 3183, GB/T 9711 |
| Reference price | USD 690–780 per metric tonne FOB any Chinese port for standard bare line pipe; coating and special inspection quoted separately |
| Coating | 3PE, 3LPE, 2LPP, FBE, internal epoxy or drag-reducing lining |
| Ends | Bevelled with end caps, or plain / threaded |
Casing, tubing and coupling stock for well construction, completion and workover. Supplied with the thread your programme calls for, hydrotested and with the mill certificate issued to API 5CT.
| Casing OD | 4½" – 20" |
|---|---|
| Tubing OD | 2⅜" – 4½" |
| Grades | J55, K55, N80-1 / N80-Q, L80, P110 |
| Threads | STC, LTC, BTC or the premium connection you nominate |
| Lengths | R1, R2, R3 |
| Standard | API 5CT, with hydrostatic test and NDT records |
| Reference price | USD 690–780 per metric tonne FOB any Chinese port, subject to grade, thread, coupling, wall thickness, quantity and inspection requirements |
Longitudinally welded pipe formed from plate and welded inside and outside by submerged arc welding, then expanded. It is how you get past the diameter limit of seamless pipe for high-pressure transmission, water mains and structural piling.
| Outside diameter | Ø406 – Ø1422 mm (16" – 56") — made to order above 16" |
|---|---|
| Wall thickness | 6 – 52 mm |
| Grades | Gr.B – X80 / L555 |
| Lengths | 6 – 12 m, fixed length available |
| Standard | API 5L PSL2, ISO 3183, GB/T 9711 |
| Reference price | USD 690–780 per metric tonne FOB any Chinese port for standard bare LSAW line pipe; coating and special inspection quoted separately |
| Coating | 3PE / 3LPE / FBE external, internal epoxy lining |
Small-diameter seamless tube for the hot end of a plant: boiler tubes, superheaters, economisers and shell-and-tube exchangers. Supplied annealed or normalised, with eddy-current or ultrasonic testing and the surface finish your fabricator expects.
Where it is used: boiler water walls, superheaters and reheaters, economisers, steam headers and steam piping, shell-and-tube heat exchangers, and furnace or reformer tubes in refineries — in other words, the hot end of a plant, where the design temperature and pressure rule out ordinary carbon pipe. Supplied annealed or normalised, with eddy-current or ultrasonic testing, hydrostatic test, flattening and flaring as specified. Reference price for standard carbon and low-alloy boiler tube: USD 690–780 per metric tonne FOB any Chinese port; higher-alloy grades such as 13CrMo44, T22 and T91 are quoted separately, and the signed contract governs.
| Outside diameter | 6 – 220 mm |
|---|---|
| Wall thickness | 1.0 – 16 mm |
| Standards | ASTM A179, A192 (ample stock), A210, A213; DIN 17175 (dedicated mill for high-temperature boiler projects); EN 10216-2; BS 3059 |
| Grades | St35.8, St45.8, 15Mo3, 13CrMo44, T11, T22, T91 |
| Testing | Eddy current, ultrasonic, hydrostatic, flattening, flaring |
| Lengths | Random or fixed, plain ends |
Coated and galvanized pipe for water mains, fire-fighting lines, fencing and outdoor structures where the pipe stays exposed to weather or wet service.
| Size | ½" – 8" (21.3 – 219 mm) |
|---|---|
| Zinc coating | 200 – 300 g/m² as standard; 300 – 500 g/m² on request. Coating mass report supplied. |
| Standards | EN 10255, BS 1387, ASTM A53, IS 1239, API 5L |
| Ends | Threaded with sockets and caps, or plain |
| Finish | Hot-dip galvanized, black painted, 3PE / FBE |
| Lengths | 6 m standard, or the length you specify |
Bends, tees, reducers, caps and flanges, plus prefabricated pipe spools, can be supplied on the same order — so your site is not matching materials from three different suppliers. Dimensions to ASME B16.9 and B16.5, material to ASTM A234 WPB / WP11 / WP22 and A105.
If you only have a tender document, a line list or a piping class, send that instead. We read it against the standard and come back with the pipe specification, the theoretical weight and the price.
API 5L PSL2, ASTM A106 Gr.B, EN 10216-2 — name the standard and the grade.
Outside diameter and wall thickness, or just the schedule if the size is in inches.
Random, fixed, SRL or DRL; plain, bevelled or threaded and coupled.
Tonnes, metres or number of lengths. Mixed sizes can travel in one shipment.
Bare, 3PE, 3LPE, FBE, internal epoxy or hot-dip galvanized.
Whether a third party attends, and who — SGS, BV, Intertek, TÜV or your own inspector.
The destination port, so we quote FOB any Chinese port with the right packing.
Material confirmation, theoretical weight, price, lead time and the document list — within one working day.
Send the standard, outside diameter, wall thickness, grade, quantity and destination port. If you only have a tender document or a piping class, send that instead — we will read it and come back with the pipe specification.
| Sales e-mail | info@yuxindapipe.com |
|---|---|
| WhatsApp / Phone | +86 188 9221 5978 |
| Jiangyu Xue on LinkedIn — sales contact, replies in English | |
| Export base & port | Tianjin, China — 40 minutes from Tianjin Port |
| Working hours | Monday–Saturday, 08:30–20:00 (GMT+8) |
| Languages | English · Français · العربية · Português |
Your details are used only to answer this enquiry. No mailing list, no third parties.
Send it as it is. You will receive the material confirmation, the weight calculation and the price.