Contact Us Now

Get Free Samples

*We respect your confidentiality and all information are protected.

Industry Steel Pipe Manufacturer – Factory Direct Bulk Pricing Since 1983

API 5L & ASTM certified Seamless and Welded (ERW/LSAW) steel pipes. Large inventory ready to ship globally.

Get Instant Quote

Get Free Samples

*We respect your confidentiality and all information are protected.

Brands We Cooperation

We have established close partnerships with numerous oil &gas companies, inventory dealers, and engineering companies worldwide.


Premium Steel Pipe Collection

Our factory offers different steel pipes suitable for Petrochemical, shipbuilding, water treatment, petroleum, chemical plants, power generation, pipeline construction, boiler systems, refineries, and other infrastructure construction projects.

Request Catalog or Samples

Get Free Samples

*We respect your confidentiality and all information are protected.

Product
Size (OD)
Standard
SEAMLESS STEEL PIPES

Hot finish: 2″–30″

API 5L, ASTM A53, ASTM A519, ASTM A106, ASTM A179, ASTM A335, ASTM A192, ASTM A333, BS3059, DIN1629, DIN17175

Cold drawn: 1/4″–18″

DIN2391, JIS G3452, JIS G3445, EN10305, EN10210

ERW STEEL PIPES

6mm–820mm

API 5L, ASTM A53, EN10217, DIN2458, JIS G3589, JIS G3452, BS1387, AS1163

LSAW STEEL PIPES

406mm–1570mm

API 5L, ASTM A53, EN10217, DIN2458, BS1387, IS:1978-1982, ASTM A252

SSAW STEEL PIPES

219mm–3120mm

API 5L, ASTM A53, ASTM A252, EN10217, EN10219, IS:1978-1982, DIN2458

Square/Rectangular Hollow Section

20×20mm – 800×800mm

ASTM A500, EN10210, EN10219, ASTM A53

Casing and Tubing

48.26mm–508mm

API 5CT

Surface Treatment

(Not applicable)

Black varnished coating, Anti-rust oil, Bare, Galvanized, 3PE, 2PE

Why Choose JSFITTINGS

40+ Years of Excellence | Exported to 50+ Countries | 10,000+ Tons Annual Capacity

One-Stop Solution

Professional Production and Service Team

2-hour Feedback and 12-hour Quotation

Competitive Profit Margin

Shorter Production Time & Fast Loading

Longer Warranty Time

Send Your Pipe Specifications for a Fast Quote

*Get a response within 2 hours

*We respect your confidentiality and all information are protected.

What Makes Us the Premier Manufacturer ?

40+Year Experience

Produce cabon steel pipe fittings and flanges, Since 1983. JSFITTINGS is proficient in ASME, GOST, JIS, DIN, SABS, BS, etc.

Professional pre-sales consultation, on-sale process, and after sales service.

Certified Quality

Approved by CE, ISO and GOST-R, strictly production to guarabtee quality. With wide range of testing and inspection services available, JS FITTINGS can help you maintain compliance with industry and customer specifications.

Advanced Technology

JS FITTINGS owns 2 new sandblasting equipment can blast 1/2”-40” fittings. The 100-meters automatic painting lines for flanges and fittings are more efficient and environmentally friendly.

Gurantees Delivery

Annual production up to 30,000 tons & lower wholesale price. Stable monthly output: 700 tons of flanges, 800 tons of pipe fittings. Government support: Environmental certificate

Exclusive logistics fleet and professional shipping agents.

Steel Pipes Manufacturing Processes

The production of steel pipes involves meticulous processes to meet stringent standards.

1. Raw Material Preparation

High-quality steel billets or coils are used, ensuring the initial material meets standard specifications.

2. Pipe Formation

Seamless Pipes (SMLS): Manufactured by hot-forming a cylindrical steel billet into a hollow pipe.

Welded Pipes: Includes processes like electric resistance welding (ERW) or submerged arc welding (SAW).

3. Heat Treatment

Heat treatments such as normalizing or quenching are performed to refine the grain structure and optimize mechanical properties.

4. Quality Control and Testing

API 5L mandates rigorous testing for dimensional accuracy, chemical composition, and mechanical properties. Hydrostatic testing, UT inspection, and impact testing are common for PSL2 products.

carbon steel pipe factory China exporter
Quality Management

Get Free Samples

*We respect your confidentiality and all information are protected.

Rigorous Inspection Process

Our QC process begins from the moment raw materials arrive at our facility. Each batch is thoroughly inspected to ensure it meets our high standards. From there, each stage of the production process involves rigorous checks and inspections to catch any potential issues early.

pipe fitting material
flange RF raised face testing

State-of-the-Art Equipment

We utilize state-of-the-art testing equipment to measure and analyze the physical and chemical properties of our products. This includes hardness testers, spectrometers, impact testing machines, and more. These tools allow us to ensure the consistency and reliability of our products.

testing equipment

Testimonials / Case Studies

Certificate And Lest Report

Your Trustworthy Industry Steel Pipes Supplier In China

SSAW steel pipe manufacturer
Seamless steel pipe

Interested In Elevating Your Business With Our

Superior Piping Products?

We’re here to help and answer any question you might have. All your needs for steel pipes, fittings, and flanges will be met through JS FITTINGS.

Get Instant Quote

Get Free Samples

*We respect your confidentiality and all information are protected.

© Hebei Jinsheng Pipe Fitting Manufacturing Co., Ltd 2026. All rights reserved. admin@jsfittings.com +8618003119682