Product Category

Bimetal Composite Pipes

Product Introduction of Womic Bimetal Built-up Welding Clad Piping

Womic Stainless Steel Co., Ltd is a professional manufacturer and global supplier of Bimetal Built-up Welding Clad Piping, offering customized clad pipes, clad fittings, and clad components for critical industries requiring superior corrosion resistance and high mechanical strength.

Bimetal Clad Pipes are composed of a base (carbon or low-alloy steel) for structural strength and a cladding layer (corrosion-resistant alloy, CRA) deposited through built-up welding (overlay welding) or metallurgical bonding. This advanced technology combines the mechanical properties of carbon steel with the corrosion resistance of stainless steel or nickel alloys—ensuring long-term durability and cost efficiency in aggressive service environments.

Our production meets major international standards such as ASTM, ASME, API, EN, and GOST, with all welding and testing procedures qualified under ASME Section IX and API 5LD / ISO 13623 requirements.

Applicable Standards of Womic Bimetal Built-up Welding Clad Piping

ASTM / ASME: ASTM A312 / A213 / A240 (CRA layers), ASTM A106 / A333 / A516 (Base materials), ASME SA387, ASME SA240

API / ISO: API 5LD, ISO 13623–CRA Clad and Lined Steel Pipes

EN / GOST: EN 10217 / EN 10222, GOST 10885, GOST 5632–Bimetal and Clad Pipes

Welding Codes: ASME IX, AWS D1.1, ISO 15614-7

Typical Material Combinations of Womic Bimetal Built-up Welding Clad Piping

Base Metal (Carbon / Alloy Steel) Cladding Metal (CRA Layer) Typical Grades / UNS No.

ASTM A106 Gr.B / ASTM A333 Gr.6 SS304 / SS316 / SS316L 1.4301 / 1.4404

ASTM A516 Gr.60 / Gr.70 Inconel 625 / Incoloy 825 N06625 / N08825

ASTM A387 Gr.11 / Gr.22 Hastelloy C276 N10276

ASTM A335 P11 / P22 Duplex 2205 / Super Duplex 2507 S32205 / S32750

API 5L Gr.B / X52 / X65 Monel 400 / Alloy 20 N04400 / N08020

Cladding process optionss of Womic Bimetal Built-up Welding Clad Piping

Weld Overlay (Built-up Welding): SAW, GTAW, or GMAW

Hot Roll Bonded Clad Plate Pipe

Explosion Bonded Clad Pipe

Centrifugal Cast Bimetal Pipe (for special diameters)

All clad pipes are 100% tested and inspected for bonding integrity, hardness, and corrosion resistance.

Size & Dimension Range of Womic Bimetal Built-up Welding Clad Piping

Specification Range

Outside Diameter (OD): 25 mm–2000 mm (1” –80”)

Wall Thickness (WT): 3 mm–100 mm (customized)

Cladding Layer Thickness: 2 mm–10 mm

Length: Up to 12 meters per joint (longer on request)

Type : Seamless / Welded / Weld Overlay Clad / Rolled Clad

Surface Finish: Pickled, Polished, Machined, or Internal Smooth Finish

End Type: Plain End (PE), Beveled End (BE), Flanged End (FE)

Inspection & Testing: Hydrostatic, Ultrasonic, Radiographic, PMI, Bend Test, Bond Strength Test

All pipes are manufactured with strict dimensional tolerances per ASME B36.10 / B36.19 / EN ISO 1127 and supplied with EN 10204 3.1 / 3.2 Mill Test Certificates.

Applications & Uses of Womic Bimetal Built-up Welding Clad Piping

Bimetal Built-up Welding Clad Pipes are designed to perform reliably in harsh service conditions where both mechanical strength and corrosion resistance are critical.

Typical applications include:

Oil & Gas Industry: Sour service pipelines, separators, risers, manifolds, and flowlines

Petrochemical Plants: Reactors, heat exchangers, distillation towers, and process piping

Refineries: Desulfurization (DSU), Hydrocracking (HCU), and FCC unit piping

Offshore Platforms: Seawater injection, topside process, and subsea pipelines

Power & Energy: High-pressure steam and flue gas systems

Marine & Desalination: Brine handling and seawater cooling systems

Chemical Processing: Acid transfer lines, chlorine and urea plants

Womic’s clad pipes provide long service life, superior corrosion resistance, and reduced maintenance cost—making them a cost-effective alternative to solid alloy pipes.

Why Choose Womic Stainless Steel ?

Womic Stainless Steel Co., Ltd combines expertise in metallurgical bonding, precision fabrication, and quality control to deliver world-class Bimetal Clad Piping Systems.

Advanced Welding Technology

Automatic SAW, GTAW, and PTA overlay systems ensure uniform cladding thickness and strong metallurgical bonding.

Broad Material Range

Complete selection of CRA alloys (304L, 316L, 625, 825, C276, 2205, 2507) bonded to carbon or alloy steel substrates.

Strict Quality Control

Each pipe undergoes 100% NDT inspection (UT, RT, PT) and destructive testing to verify bond integrity and mechanical performance.

International Standards Compliance

Manufactured according to ASTM, ASME, API, EN, and ISO standards with full material traceability and certification.

Engineering & Custom Solutions

Customized clad pipes, elbows, tees, reducers, and fittings available based on client drawings and project specifications.

Reliable Global Supply

Exported to Europe, Middle East, Southeast Asia, and South America, serving oil & gas, chemical, and energy sectors.

Competitive Price & Fast Delivery

In-house production and stable raw material supply chain ensure short lead time and best value.

Contact Womic Stainless Steel

Looking for a reliable supplier of Bimetal Built-up Welding Clad Pipes for your next project?

Contact Womic Stainless Steel Co., Ltd for professional technical support and competitive quotations.

Tel: 0086-18390957568

Whatsapp: 0086-15575100681

E-mail:info@womicstainless.com

Website: www.womicstainless.com