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High-End Stainless Steel
Pipe Manufacturing

We only do what we are good at — precision-engineered welded pipes, seamless alloys, and custom prefabricated solutions for global industrial applications.

Haynes International Authorized
ISO9001 & TS Certified
EN10204 3.1 Traceability
Explore Products

About Wuxi Weldpi

Wuxi Weldpi Stainless Steel Pipe Manufacturing Co., Ltd. is a high-end manufacturer specializing in the production of stainless steel, titanium, and nickel alloy welded pipes. Located in Wuxi, Jiangsu Province — a hub of industrial innovation by the shores of Taihu Lake — we combine European and American production equipment with advanced automation to deliver reliable, traceable pipeline solutions.

As an authorized manufacturing enterprise by Haynes International, INC., we produce certified Hastelloy pipes, flanges, and forgings under strict international standards. Our welding procedures are TÜV-qualified, and we comply with ISO9001:2001 quality management systems from R&D to delivery.

100%
Custom Production
Global
Export Capability
Weldpi Factory Facility

Our Product Range

Precision-engineered pipes and components for extreme environments — from petrochemical to aerospace. All products are 100% custom, traceable, and compliant with international standards.

Hastelloy C276 Seamless Pipe

Hastelloy C276 Seamless Pipe

Corrosion-resistant nickel-molybdenum-chromium alloy for aggressive chemical environments. ASTM B622 compliant.

C276 Seamless Haynes Authored
Hastelloy 625 Seamless Pipe

Hastelloy 625 Seamless Pipe

High-strength, oxidation-resistant alloy ideal for high-temperature applications in aerospace and power generation.

Inconel 625 Seamless EN10204 3.1
Hastelloy C22 Seamless Pipe

Hastelloy C22 Seamless Pipe

Superior resistance to pitting, crevice corrosion, and stress corrosion cracking. Ideal for chemical processing.

Haynes C22 Seamless TS Certified
Stainless Steel Welded Pipe

Stainless Steel Welded Pipe

Precision laser-welded pipes with FANUC robot tracking. Available in 304, 316L, 800H, and 17-4PH.

316L 800H Welded
Nickel Alloy Welded Pipe

Nickel Alloy Welded Pipe

High-tensile strength pipes for sour service and offshore applications. Incoloy 825, Inconel 718, and more.

Incoloy 825 Inconel 718 Welded
Titanium & Zirconium Pipes

Titanium & Zirconium Pipes

Lightweight, corrosion-resistant non-ferrous metal pipes for marine, medical, and chemical applications.

Titanium Zirconium Custom Alloy
Pipe Prefabricated Parts

Pipe Prefabricated Parts

Custom-fabricated assemblies including welding of pipe-to-flange and pipe-to-fittings with full documentation.

Weld Matching Prefabricated Traceable
Hastelloy Forging Parts

Hastelloy Forging Parts

High-integrity forged flanges, fittings, and shaped components for critical service applications.

Flanges Shaped Forgings Haynes Authored

Advanced Capabilities

Cutting-edge technology and rigorous quality control ensure unmatched reliability.

Laser Weld Tracking

FANUC robotic systems with real-time laser seam tracking for perfect weld consistency.

European Equipment

State-of-the-art Austrian Fronius welding machines and automated press systems.

TÜV Certification

Welding procedures and personnel qualified under TÜV international standards.

Fast Global Delivery

Self-supporting import/export license with direct shipping to North America, Europe, and Asia.

Global Certifications

We meet the highest international standards for quality and compliance.

Haynes Authorized

ISO9001 Certified

TS Certificate (China)

EN10204 3.1

TÜV Welding

Import/Export License

Get in Touch

For inquiries, quotes, or technical support — contact us through the official website.

Hotline

+86 0510-83488899

Mon-Sat 08:00–17:00

Office

Room 1006, Yunma Innovation Center, Xinwu District, Wuxi, Jiangsu

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