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Premium Steel & Nickel Tubes from China

ISO9001:2008 certified manufacturer of seamless and welded stainless steel, carbon, alloy, and nickel alloy tubes. Trusted by global industries for unmatched quality and reliability.

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About KWK Steel

KWK Steel Co., Ltd. is one of the most specialized Chinese steel and nickel tube manufacturers, proudly holding ISO9001:2008 certification. We are a leading supplier of high-quality steel tubes made from carbon, alloy, stainless steel, and nickel materials.

Our brand “KWKSTEEL” embodies the spirit of “Specialized Service, Steel Quality, Stainless Management”. With three dedicated production mills, we manufacture seamless carbon steel tubes, alloy seamless steel tubes, seamless and welded stainless steel tubes, as well as nickel alloy tubes to meet international standards.

3

Production Mills

ISO

ISO9001:2008 Certified

KWK Steel Manufacturing Facility

Our Products

We offer a comprehensive range of high-performance steel and nickel alloy tubes designed for industrial, mechanical, and engineering applications.

Stainless Steel Tube

Stainless Steel Tube

Seamless and welded stainless steel tubes manufactured to international standards. Ideal for corrosive environments and high-temperature applications.

  • • Standards: ASTM, EN, JIS
  • • Forms: Seamless & Welded
  • • Applications: Chemical, Food, Pharma
Nickel Alloy Tube

Nickel & Nickel Alloy Tube

High-performance tubes engineered for extreme environments. Compliant with ASTM B163, B407, B444, B622, B677 standards.

  • • Grades: Inconel, Incoloy, Monel
  • • Corrosion & heat resistant
  • • Oil & Gas, Aerospace
Carbon Steel Tube

Carbon & Alloy Steel Tube

Robust carbon and alloy steel tubes meeting ASTM, EN, and JIS standards. Excellent mechanical properties for structural and industrial use.

  • • Standards: ASTM A106, A519
  • • Seamless & Welded Options
  • • High Strength & Durability
Seamless Steel Tube

Seamless Stainless Tube

Precision-engineered seamless stainless tubes for critical applications requiring leak-proof integrity and high pressure resistance.

  • • Cold Drawn & Hot Finished
  • • OD: 6mm – 630mm
  • • Wall: 0.5mm – 50mm
Welded Steel Pipe

Welded Stainless Pipe

High-quality welded stainless pipes with consistent weld integrity and surface finish. Suitable for architectural and industrial uses.

  • • TIG & MIG Welding
  • • Polished & Pickled Finish
  • • Longitudinal & Spiral Weld
Alloy Steel Tube

Alloy Seamless Steel Tube

Specialized alloy tubes with enhanced mechanical and thermal properties. Used in power generation, petrochemical, and automotive sectors.

  • • Grades: 4130, 4140, 4340
  • • Heat Treated Options
  • • High Wear Resistance
Industrial Steel Tubing

Industrial Steel Tubing

Customizable steel tubing solutions for machinery, hydraulic systems, and structural frameworks. Precision tolerances and finishes.

  • • Hydraulic & Pneumatic
  • • Precision Drawn
  • • CNC Cut & Threaded
Nickel Alloy Seamless Tube

Nickel Alloy Seamless Tube

Seamless nickel alloy tubes for extreme environments in chemical processing, marine, and nuclear industries. Exceptional corrosion resistance.

  • • ASTM B163, B407 Compliant
  • • High Temp & Pressure
  • • Custom Lengths & Ends

Our Quality Commitment

At KWK Steel, quality is not just a standard — it's our promise. We are ISO9001:2008 certified and adhere to the strictest international manufacturing and testing protocols.

ISO

ISO9001:2008 Certified

Internationally recognized quality management system.

✔️

100% Testing

Hydrostatic, eddy current, ultrasonic, and dimensional checks.

🌍

Global Standards

ASTM, EN, JIS, GB, and custom specifications.

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Advanced Facilities

Three modern mills with automated production lines.

Latest News & Events

Taiwanese Stainless Steelmakers Plan to Adjust Output

October 29, 2013 — Market adjustments expected due to global demand shifts.

29/10/2013

Taiwanese YC Inox's Shipments May Hit Record

October 28, 2013 — Rising export volumes signal strong international demand.

28/10/2013

Korea’s Stainless HRC Imports Rise in September

October 24, 2013 — Increased industrial activity drives import growth.

24/10/2013

Get in Touch

Reach out to KWK Steel for product inquiries, technical support, or partnership opportunities.

Contact Information

  • Tel: +86-576-88808821
  • Fax: +86-576-88809380
  • Email: sales@kwksteel.com
  • Website: www.kwksteel.com
  • Address: E802, Xintai Square Building, Jiaojiang District, Taizhou, Zhejiang, China

Visit Official Website

For detailed product catalogs, technical specifications, and inquiry forms, please visit our official website.

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