China Stainless Steel
stainless steel
clad pipe
TeCarve’s Stainless Steel Clad Pipe is engineered for high-demand process environments where aggressive media require the corrosion resistance of stainless steel or duplex alloys, while structural pressure is borne by high-strength carbon steel. Produced by our specialist clad-pipe partner mill from metallurgically bonded clad plate, our clad pipes combine an inner or outer corrosion-resistant alloy layer with an economical carbon steel backing.
Only the corrosion-resistant layer — typically 1.5–3 mm — is stainless or duplex. The rest of the wall is carbon steel. On a 1020 × 8 mm pipe with a 1.5 mm 2205 layer, roughly 80% of the pipe’s weight is carbon steel. The higher the alloy grade (2205, 2507, 904L), the bigger the gap versus a solid pipe. Send us your size and grade and we’ll quote clad and solid side by side.
Manufactured from clad plate to ASTM A264 / GB/T 8165 and pressure vessel standard NB/T 47002, TeCarve delivers longitudinally welded (LSAW), spiral welded (SSAW), heavy-wall rolled pipe, and clad square/rectangular tubing backed by rigorous non-destructive examination and material traceability.
Specifications
| Specification | Details |
|---|---|
| Outer Diameter | LSAW Clad Pipe: OD 325 mm – 2800 mm | SSAW Spiral: OD 219 mm – 1620 mm | Rolled Heavy Wall: OD 500 mm – 3600 mm | Clad Square & Rectangular: 200 × 200 mm – 3000 × 3000 mm |
| Total Wall Thickness | 5 mm – 100 mm (LSAW: 5–70 mm; SSAW: 5–25 mm; Rolled: 8–100 mm; Square/Rectangular: 6–40 mm) |
| Clad Layer Thickness | Typically 1.5 mm – 3 mm (customizable to project engineering requirements) |
| Length | 6000 mm – 15000 mm (custom fixed lengths available) |
| Clad Layer Grades | 304, 304L, 316L, 321, 310S, 317L, Duplex 2205, Super Duplex 2507, 904L |
| Base Metal Grades | Carbon & Low-Alloy Steel: Q235B, Q355B, Q390B–Q690B, Q245R–Q370R, SA516 Gr.70, L245–L555 (X52–X70) |
| Bonding & Structure | Metallurgical bond; 2-layer or 3-layer bimetallic composite |
| Forming & Seam Types | Longitudinally Welded (LSAW), Spiral Welded (SSAW), Heavy-Wall Rolled Pipe, Square/Rectangular Tube |
Get Your Stainless Steel Clad Pipe Quote
Sourcing metallurgically bonded stainless steel or duplex clad pipe for chemical process lines, blast-furnace gas, seawater desalination, or heavy-wall structural projects? Contact our sales engineering desk for pricing, clad layer and base metal optimization, welding procedure support, and flexible project trials (1 ton or 100 m MOQ, 2–5 joints prototype).
Engineering review of your size, grade and medium, with clad and solid alloy quoted side by side.
Clad ring sections and cut pipe samples provided for metallurgical bond inspection, welding trials, and laboratory testing.
Verify field weldability, dimensional fit, and corrosion performance with flexible 1 ton or 100 m trial orders (2–5 joints).
Ultrasonic bond inspection of the clad plate, weld-seam RT/UT and hydrostatic testing to your specification, EN 10204 3.1 certificates for clad and base layers.
| Standard System | Standard Numbers & Scope |
|---|---|
| ASTM (USA) | Manufactured from clad plate to ASTM A264 (Stainless Chromium-Nickel Steel-Clad Plate) |
| GB/T (China Clad Plate) | GB/T 8165 (Stainless steel clad plate and sheet) |
| NB/T (Pressure Vessels) | NB/T 47002 (Stainless steel clad plate for pressure vessels) |
| Welded Pipe (Reference) | GB/T 12771 / project welding specifications (reference) |
| Inspection & Testing | Ultrasonic bond inspection of the clad plate (ASTM A578 / NB/T 47002); hydrostatic test and RT/UT of weld seams to the project specification |
Standards
Features
• Metallurgically bonded bimetallic construction with bond shear strength tested per ASTM A264
• Corrosion resistance matching solid alloy on the wetted process face
• High pressure bearing capacity and structural rigidity from carbon steel backing
• Broad size capability up to OD 3600 mm and wall thickness up to 100 mm
• Girth welds completed with alloy filler passes and seal-welded ends for continuous protection
Applications
Quality Control
• Ultrasonic inspection of the clad-plate bond (ASTM A578 / NB/T 47002) to check for delamination
• Full material traceability with mill test certificates (EN 10204 3.1) for clad and base layers
• Hydrostatic testing and RT/UT of weld seams, scope set by the project specification
• Interfacial shear strength testing and bend testing per ASTM A264 and GB/T 8165
• Recommended welding procedure specification (WPS) and third-party inspection accepted
packaging
PVC Wrapping
& End Caps
Custom Barcoding
& Labeling
Anti-Corrosion
& Moisture Protection
Seaworthy Wooden Cases & Pallets
Stainless Steel Clad Pipe Product & Application Photos
Real product, inspection, packaging and loading photos.
Tailored Solutions, Timely Fulfillment
CUSTOMIZATION
& DELIVERY
Flexible Custom Manufacturing
Our specialist clad-pipe partner mill produces bimetallic clad pipe customized by clad alloy (304, 316L, 2205, 2507, 904L), carbon steel base metal (Q235B, Q355B, SA516 Gr.70, X52–X70), diameter (OD 219–3600 mm), and wall thickness (5–100 mm).
Low MOQ & Rapid Prototyping
MOQ is 1 ton or 100 meters, with trial and prototype orders supported at 2–5 joints to verify dimensional fit, weldability, and corrosion resistance before full-scale procurement.
Optimized Lead Time
Delivery is typically 30–45 days after deposit for large-diameter and custom project fabrication, covering plate preparation, forming, automatic submerged arc welding, NDT inspection, and beveling.
Global Logistics & On-Time Delivery
For stainless steel clad pipe exports to over 50 countries, pipe ends are protected with bevel protectors and seal caps, bundled or loaded with heavy-duty crane cradles for secure container or breakbulk maritime transit.
Frequently Asked Questions
What is a stainless steel clad pipe and how is it constructed?
A stainless steel clad pipe is a bimetallic composite pipe consisting of an inner or outer corrosion-resistant stainless steel or duplex alloy layer metallurgically bonded to a high-strength carbon or low-alloy steel backing. Produced by our specialist clad-pipe partner mill from metallurgically bonded clad plate, it provides the corrosion resistance of solid alloy on the wetted process face while utilizing economical carbon steel for structural pressure containment. Available in two-layer and three-layer configurations, forming types include longitudinal submerged arc welded (LSAW), spiral submerged arc welded (SSAW), heavy-wall rolled pipe, and structural square or rectangular tubing.
What alloy grades and base materials are available for clad pipes?
Clad layers are supplied in austenitic and duplex grades including 304, 304L, 316L, 321, 310S, 317L, duplex 2205, super duplex 2507, and 904L. Base metal carbon and alloy steels include structural grades Q235B, Q355B, Q390B–Q690B, boiler and pressure vessel grades Q245R–Q370R, SA516 Gr.70, and line pipe grades L245–L555 (X52–X70). Thin-wall composite tubing pairing 201, 304, or 316 with Q235 or Q355 is also available for guardrails, bridge railings, and industrial conveyor rollers.
How does the corrosion resistance and service life of clad pipe compare to solid stainless steel pipe?
The process medium only ever touches the clad layer, so corrosion resistance on the wetted surface matches a solid pipe of the same grade. Service life is engineered, not guessed: we size the clad thickness from your medium's corrosion rate plus a corrosion allowance. Tell us the medium — chlorides, H₂S, pH, temperature — and we'll recommend a grade and layer thickness. In a one-year side-by-side trial on a steelworks blast-furnace gas line, the carbon steel section showed heavy corrosion and leaks, while the clad pipe section showed no pitting or delamination.
What is the cost and weight advantage of clad pipe compared to solid alloy pipe?
Only the corrosion-resistant layer — typically 1.5–3 mm — is stainless or duplex. The rest of the wall is carbon steel. On a 1020 × 8 mm pipe with a 1.5 mm 2205 layer, roughly 80% of the pipe's weight is carbon steel. The higher the alloy grade (2205, 2507, 904L), the bigger the gap versus a solid pipe. Send us your size and grade and we'll quote clad and solid side by side.
What size ranges and dimensions does TeCarve supply for stainless steel clad pipe?
Our specialist clad-pipe partner mill fabricates clad pipe across a broad dimensional matrix: longitudinal submerged arc welded (LSAW) bimetallic clad pipe in outer diameter (OD) 325 mm to 2800 mm with total wall thickness 5 mm to 70 mm; spiral welded (SSAW) clad pipe in OD 219 mm to 1620 mm with wall thickness 5 mm to 25 mm; heavy-wall rolled clad pipe in OD 500 mm to 3600 mm with wall thickness 8 mm to 100 mm; and clad square/rectangular tubing from 200 × 200 mm to 3000 × 3000 mm with wall thickness 6 mm to 40 mm. Clad layer thickness is typically 1.5 mm to 3 mm. Standard delivery lengths range from 6000 mm to 15000 mm.
What manufacturing standards and testing specifications apply to clad pipe?
Clad pipes are manufactured from clad plate to ASTM A264 / GB/T 8165 and pressure vessel clad plate standard NB/T 47002, with GB/T 12771 referenced for welded tube requirements. Quality control includes ultrasonic inspection of the clad-plate bond (ASTM A578 / NB/T 47002), shear strength testing of the bond per ASTM A264, and hydrostatic testing and RT/UT of weld seams to the scope set by the project specification, and mill test certificates (EN 10204 3.1) for both base and clad layers.
How are girth welds and pipe ends joined during field installation?
Girth welds need a stainless/alloy filler pass over the clad side so the corrosion barrier stays continuous; pipe ends are seal-welded. We supply a recommended welding procedure (WPS) with the order. Welded pipe joints can be configured with plain ends, beveled ends with seal welding, or customized flanged connections to integrate seamlessly with existing process piping and equipment nozzles.
What are the primary industrial applications for stainless steel clad pipes?
Stainless steel clad pipe is primarily used in chemical and coal chemical process piping, blast-furnace gas lines and flue gas ducting, seawater desalination and marine intake piping, municipal water transmission and district thermal heating networks, pressure vessel shells and nozzles, and architectural infrastructure such as bridge railings, riverside safety guardrails, and heavy conveyor rollers.