Hydraulic Steel Tube

About Shanghai Tianyang

Shanghai Tianyang Steel Tube Co., Ltd is a professional high-technology enterprise providing high-precision seamless steel tubes, industrial-grade bimetallic clad pipes, and 915 high-polymer composite new materials for global customers.

Our products are widely applied in military industry, aerospace, petroleum and petrochemical, heat exchangers, boilers, ships and marine engineering, wind power, and hydraulic system piping. We have earned national recognition including "National Focused New Product" and hold certifications from 8 international classification societies.

300+

Employees

80,000 T/Y

Clad Pipes

60,000 T/Y

Seamless Tubes

Factories

Our Products

Engineered for extreme environments — from offshore platforms to aerospace hydraulics. All products meet ISO, API, PED, and major classification society standards.

High-precision seamless steel tubes for hydraulic systems with tight tolerances and excellent fatigue resistance.

• Seamless construction
• High fatigue strength
• Precision cold-drawn
• ISO 9001 & PED certified

Bimetallic Clad Pipe

Metallurgically bonded dual-layer pipes combining carbon steel strength with corrosion-resistant alloy linings.

• Metallurgical bonding
• Oil well & heat exchanger grade
• Up to 80,000 tons/year capacity
• API 5LD certified

915 Anticorrosion Coating

High-polymer composite material offering superior protection against acid, alkali, and salt corrosion.

• 915-3 Ultra-Hard variant available
• 915-5 Absorbing coating option
• Thermal stability up to 200°C
• ISO 14064 greenhouse verified

Carbon Steel Tube

High-precision EN/DIN cold-rolled or galvanized steel tubes for structural and mechanical applications.

• Cold-rolled & pickled options
• Galvanized finish available
• Precision dimensional control
• CCS, ABS, DNV approved

Stainless Steel Tube

Pickled and annealed stainless steel tubes for food, pharmaceutical, and high-purity industrial use.

• AISI 304/316L grades
• Pickled & annealed finish
• Low surface roughness
• IATF 16949 compliant

Hot Nickel Plating Tube

Steel tubes with electroless nickel plating for enhanced wear and corrosion resistance in aggressive environments.

• Uniform Ni-P coating
• High hardness & lubricity
• Excellent adhesion
• Salt spray tested

Hydrogen Barrier Coating

Specialized coating system preventing hydrogen embrittlement in high-pressure hydrogen service.

• H₂ permeation resistance
• Compatible with carbon & alloy steels
• Thermal cycling stable
• For refueling & storage systems

Preinsulated Tubing Bundles

Factory-assembled heat-traced and preinsulated tubing systems for process temperature maintenance.

• Integrated heating cables
• Polyurethane foam insulation
• Weather-resistant jacket
• Custom configurations

High Flux Tube

Enhanced surface tubes for heat exchangers, increasing thermal efficiency by up to 70%.

• Internal & external enhancement
• For condensers & evaporators
• Reduces fouling tendency
• Energy-saving design

Clad Pipe Fittings

Bimetallic fittings including elbows, tees, and reducers for seamless integration with clad piping systems.

• Metallurgical bond integrity
• Matched CTE design
• Full QA traceability
• ASME B16.9 compliant

View All Products

Global Capabilities

Backed by innovation, quality, and strategic partnerships

Technical Expertise

27 R&D personnel and 20 inspection specialists ensure cutting-edge product development and rigorous quality control.

Strategic partnerships with Shanghai Institute of Technology and CNPC Tubular Goods Research Institute.

Production Capacity

Three factories totaling 80,000 m² with annual capacity of 60,000 tons of seamless tubes and 80,000 tons of clad pipes.

Zhejiang Tianyang facility handles 915 polymer composite and precision pipe production.

Quality Assurance

Certified under ISO 9001, ISO 45001, IATF 16949, ISO 14064, and PED 97/23/EC.

API 5LD ABS BV DNV CCS

Frequently Asked Questions

What is bimetallic clad pipe?

Bimetallic clad pipe is a composite pipe with a carbon steel base layer for strength and a corrosion-resistant alloy (like stainless steel or nickel alloy) inner layer, metallurgically bonded for superior performance in aggressive environments.

Is the 915 coating suitable for offshore use?

Yes, the 915 high-polymer composite anticorrosion coating is specifically engineered for marine and offshore applications, providing excellent resistance to saltwater, UV exposure, and mechanical damage.

Do you offer custom tubing solutions?

Yes, we provide OEM and custom engineering services for hydraulic systems, heat exchangers, and special industrial applications. Our R&D team works closely with clients on tailored solutions.

What certifications do your products hold?

Our products are certified by ABS, DNV, BV, LR, CCS, NK, RINA, RS, API 5LD, and comply with ISO 9001, IATF 16949, PED 97/23/EC, and ISO 14064 standards.

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About Shanghai Tianyang

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