Stainless Steel Welded Pipe
Stainless steel welded pipe (ERW straight seam welded tube) is formed by rolling stainless steel strip into round hollow shape and performing electric resistance welding. The weld seam can be ground flush, solution‑annealed and non‑destructive‑tested for stable performance. It features precise dimension, uniform wall thickness, large‑diameter availability and competitive cost compared with seamless stainless pipe. We supply two main categories: decorative welded tube for architectural ornament and industrial welded pipe for process fluid transfer. Surface PE protective film is available for decorative grades; weld seam inspection by ET eddy current test is conducted for industrial piping. HL, 8K mirror, anti‑fingerprint and PVD colored surface options are supported.
Minimum Order Quantity: Flexible, sample order available
Delivery Time: 7–15 Working Days
Packaging: Standard Seaworthy Export Packaging
Supply Ability: Large ready stock supported by our own warehouse & production workshop
Email: lynn@dashengsteel.com
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Description
PRODUCT DESCRIPTION
| Item | Details |
|---|---|
| Product Name | Stainless Steel Welded Pipe |
| Material | Нержавеющая сталь |
| Available Grade | 201, 304, 304L, 316, 316L, 321, 309S, 310S, 904L, Duplex 2205, Duplex 2507 |
| Specification | OD: 6‑610mm; Wall thickness:0.6‑14mm; Length:1000‑8000mm |
| Thickness Tolerance | ±0.05mm |
| Shape | Round Welded Tube |
| End Condition | Plain End / Beveled End / Threaded End / Deburred End |
| Surface Finish | No.1, 2B, BA, HL, 8K Mirror, Polished etc. |
| Standard | AISI, ASTM, BS, DIN, EN, GB, ISO, JIS, ASME |
| Обеспечение качества | ISO9001, CE; Third‑party testing / inspection; ET eddy current test for weld seam; Certifications which apply for Buyers’ Countries. |
| MOQ | 1 TON |
| Payment Terms | TT or LC at sight |
| Delivery Time | Depends on Specifications, Quantity etc. |
| Заявка | Architectural Decoration, Guardrail & Handrail, Petrochemical, Food Processing, Pharmaceutical, Water Treatment, Heat Exchanger, Machinery Structure etc. |
| Packing | Standard Seaworthy Package or as required |
Product Features
- ERW straight‑seam welding process: Rolled from stainless steel strip and electric‑resistance welded, weld seam can be ground flush for smooth appearance.
- Two application categories: decorative welded tube for architectural ornament and industrial welded pipe for fluid transfer.
- Post‑weld treatment available: Solution annealing and ET eddy current non‑destructive inspection guarantee weld joint reliability for industrial service.
- Cost‑effective alternative: Precise dimension, uniform wall thickness and large‑diameter capacity with competitive price versus seamless pipe.
- Multiple decorative options: HL hairline, 8K mirror, anti‑fingerprint and PVD colored surface treatments are optional.
- PE protective film: Surface film prevents scratches for decorative grade tubes during processing and shipment.
- Broad grade portfolio: Covers 200, 300 series, 904L and duplex 2205 / 2507 for decorative and corrosive industrial environments.
- Multiple end finishes: Plain, beveled, threaded and deburred ends to satisfy different connection requirements.
- Complete certification support: ISO9001, CE, third‑party inspection acceptable.
Typical Performance
- Stable welding joint performance: Solution annealing and eddy‑current testing eliminate weld‑zone defects for long‑term service.
- High dimensional accuracy: Precise OD and wall‑thickness tolerance ensure good assembly performance.
- Excellent corrosion resistance: Retain original stainless‑steel anti‑corrosion property for outdoor decoration and industrial fluid delivery.
- Good processability: Easy cutting, bending and welding for decoration frames, guardrails and process piping systems.
Main Applications
- 🏬 Архитектурное оформление: Decorative tubing for building facades, interior profiles.
- 🚧 Guardrail & Handrail: Handrail, balustrade and guardrail tubing.
- ⛽ Petrochemical: General‑purpose process piping for petrochemical facilities.
- 🍱 Food Processing: Sanitary piping for food production lines.
- 💊 Pharmaceutical: Fluid‑transfer tubing for pharmaceutical equipment.
- 💧 Water Treatment: Piping for water‑treatment systems.
- 🔩 Heat Exchanger & Machinery Structure: Structural and heat‑exchange tubular components.
Flexible specifications tailored to your project needs.
Product Advantages
Consistent Alloy Performance
Precisely controlled chemical composition delivers dependable material performance across every batch.
Rapid Sourcing & Dispatch
Extensive on-site stock enables quick turnaround and flexible order volumes.
Spec-Driven Customization
Width, thickness, grade and surface finish adapted to your drawings.
Dedicated Engineering Support
Our engineers assist with specifications and technical queries at every stage of your order.
Why Choose Us
Why Choose Our Stainless Steel & Nickel Alloy Materials
Integrated manufacturing and trading enterprise
Stable steel mill partnerships
Complete nickel-based alloy portfolio
Abundant raw material inventory
One-stop steel & alloy solutions
Featured Products
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Stainless steel seamless pipe (SMLS pipe) is manufactured by piercing solid stainless steel billet, followed by hot finishing or cold drawing. Without a welding seam, it delivers superior structural integrity, high pressure‑bearing capacity and consistent metallurgical property, which distinguishes it from welded stainless steel pipe. It is the preferred piping material for critical high‑temperature, high‑pressure and corrosive industrial systems. We supply both hot‑finished seamless pipe and precision cold‑drawn seamless tube, available in No.1 pickled, BA bright or polished finishes, with strict dimensional control, uniform wall thickness and smooth inner bore for stable fluid, gas and steam transmission.
Stainless steel capillary tube is ultra‑small diameter precision tubing, also known as capillary tubing, widely used for fluid control, sensing and micro‑component fabrication. We supply both seamless capillary tube and precision welded capillary tube, cold drawn to achieve strict dimensional tolerance, smooth inner bore and clean BA bright surface. Unlike regular stainless steel pipe, capillary tube features tiny outer diameter and thin wall with consistent roundness and uniform wall thickness. It can be cut, bent, flared, punched and customized into finished needle tubes, probe tubes and instrument parts. Excellent corrosion resistance, clean surface and stable mechanical performance make it the preferred precision raw material for high‑end industrial and medical sectors.
Stainless steel square tube, also known as SHS square hollow section, is cold formed and precision welded from stainless steel strip coil. It combines structural strength with decorative appearance, widely used for architectural ornamentation and light structural fabrication. Our square tube can be supplied with weld seam ground and polished for an invisible seam effect, suitable for visible decorative projects. Unlike round stainless pipe, square hollow section features neat square geometry, easy assembly, bending, welding and cutting. Multiple surface finishes are available, with protective PE film applied to avoid scratches during processing and shipment. Anti‑fingerprint treatment and PVD colored coating are optional.
