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High-performance tubes for petroleum, heat exchangers, and industrial machining — engineered with precision in China.

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About Jiangyin Donghao

Jiangyin Donghao Stainless Steel Pipe Co., Ltd is a leading manufacturer and supplier of high-quality stainless steel and alloy pipes in China. As part of the China Haohua Industry Group, we specialize in delivering precision-engineered tubing solutions for the petroleum, heat exchanger, and machining industries.

Our facility spans over 40,000 square meters, including 30,000 square meters of modern workshop space. With a fixed capital exceeding $10 million USD, we employ over 350 skilled professionals, including more than 50 technical experts such as senior and assistant engineers.

40,000+
Square Meters Facility
350+
Employees
$10M+
Fixed Capital
50+
Technical Engineers
Stainless Steel Pipe Production Alloy Pipe Inspection Pipe Manufacturing Line Finished Pipe Products

Our Product Range

Engineered for performance and reliability across critical industrial applications.

Austenitic Stainless Steel Pipe

Austenitic Stainless Steel Pipe

  • • ASTM A312 / EN10216-5
  • • Grades: TP304, TP316L, 1.4301, 1.4311
  • • Ideal for corrosive environments
  • • Seamless & welded options
Duplex Stainless Steel Pipe

Duplex Stainless Steel Pipe

  • • UNS S32205 / S31803
  • • High strength & corrosion resistance
  • • ASTM A789, Bright Annealed
  • • Used in offshore & chemical plants
Ferritic Stainless Steel

Ferritic Stainless Steel

  • • Magnetic, cost-effective
  • • Good oxidation resistance
  • • Suitable for automotive & appliances
  • • ASTM A268 compliant
Nickel Alloy Steel Pipe

Nickel Alloy Steel Pipe

  • • UNS N08020, N08825
  • • Resistant to acids & high temps
  • • Petrochemical & marine use
  • • Seamless & welded forms
Titanium Alloy Steel Pipe

Titanium Alloy Steel Pipe

  • • Lightweight & ultra-corrosion resistant
  • • Ideal for aerospace & desalination
  • • High strength-to-density ratio
  • • ASTM B861 / B338
Stainless U Tubing

Stainless U Tubing

  • • Heat exchanger applications
  • • UNS S32750, TP316L
  • • Precision bending & cleaning
  • • High thermal efficiency
Seamless Alloy Steel Pipes

Seamless Alloy Steel Pipes

  • • High-pressure applications
  • • Oil & gas, power generation
  • • ASTM A335, API 5L
  • • Excellent mechanical properties
Stainless Coils Tubing

Stainless Coils Tubing

  • • Compact & transport-friendly
  • • Used in instrumentation & HVAC
  • • TP304, TP316L grades
  • • Available in various diameters
Fin Tubing

Fin Tubing

  • • Enhanced heat transfer
  • • Fin 1060 with UNS31250
  • • For heat exchangers & radiators
  • • Custom fin profiles available
Stainless Round & Square Bar

Stainless Round & Square Bar

  • • TP316L polished finish
  • • Machining & structural use
  • • Precision tolerances
  • • Corrosion-resistant
Stainless Profile Shape Pipes

Stainless Profile Shape Pipes

  • • Custom cross-sections
  • • Architectural & industrial use
  • • High strength & durability
  • • Tailored to specifications
Welded Stainless Steel Pipe

Welded Stainless Steel Pipe

  • • ASTM A312 compliant
  • • Cost-effective for large diameters
  • • High weld integrity
  • • Wide range of finishes

Why Choose DH-PIPE?

Advanced Manufacturing

State-of-the-art equipment and automated processes ensure consistent quality and high production efficiency.

Quality Assurance

Rigorous inspection protocols and full traceability from raw material to finished product.

Global Reach

Trusted supplier to industries worldwide, with export experience in petroleum, energy, and chemical sectors.

15+
Years Experience
30K+
Tons Annual Output
60+
Countries Served
100%
Inspection Compliance

Frequently Asked Questions

What industries do you serve?

We supply pipes for petroleum, heat exchanger, chemical processing, power generation, desalination, and industrial machining sectors.

Do you offer custom pipe dimensions?

Yes, we provide custom lengths, diameters, wall thicknesses, and finishes based on client specifications.

What certifications do you hold?

Our products comply with ASTM, ASME, EN, and API standards. We maintain full quality control and traceability documentation.

Can you supply samples?

Yes, we can provide product samples upon request for evaluation and testing purposes.

Get in Touch

Contact Jiangyin Donghao Stainless Steel Pipe Co., Ltd for inquiries, quotes, or technical support.

Contact Information

Address: No.88, Zhenyang Road, Qingyang Town, Jiangyin City, Jiangsu Province, China

Email: sales@dh-pipe.com

Phone: +86-512-58220050

Fax: +86-512-58810865

Website: www.dh-pipe.com

Group Site: www.haopipe.com

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