201 Stainless Steel Pipe
201 Stainless Steel Pipe
201 Stainless Steel Pipe is available in round, square, and rectangular welded profiles, with polished or brushed finishes. Commonly used for furniture frames, handrails, decorative structures, and indoor architectural applications.
- Mill Test Certificate Provided
- Strict Quality Inspection
- Custom Sizes Available
- On-Time Global Delivery
201 Stainless Steel Pipe is a chromium-manganese-nickel austenitic stainless steel tube commonly manufactured for decorative and mechanical applications. Grade 201 (UNS S20100) contains 16.00–18.00% chromium, 5.50–7.50% manganese, and 3.50–5.50% nickel, providing a lower-nickel alternative to Grade 304 for applications with relatively mild corrosion exposure.
201 stainless steel tubing is commonly used in furniture frames, handrails, architectural decoration, and indoor structural components where surface appearance, formability, and material cost are important.
Welded tubes are available in round, square, and rectangular profiles, with brushed, polished, and mirror finishes. Product selection depends on tube dimensions, wall thickness, surface finish, fabrication requirements, and intended service conditions.
Product Features
- Low-Nickel Austenitic Composition – Contains 3.50–5.50% nickel and 5.50–7.50% manganese, providing a lower-nickel alternative to Grade 304 for decorative and mechanical applications.
- Cost-Effective Material Selection – Lower nickel content can reduce material costs compared with Grade 304, making it suitable for furniture frames, interior railings, and decorative structures.
- Multiple Tube Profiles – Available in round, square, and rectangular welded sections for furniture manufacturing, architectural fabrication, and light structural assemblies.
- Decorative Surface Finishes – Brushed, polished, and mirror finishes are available for visible components where surface appearance and polishing consistency are important.
- Cold Forming and Fabrication – Suitable for cutting, bending, drilling, and welding using appropriate procedures. Its relatively high work-hardening rate requires consideration during forming.
- Dimensional and Surface Inspection – Tube dimensions, wall thickness, straightness, weld condition, and surface quality can be inspected according to agreed purchase specifications.
201 Stainless Steel Pipe – Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | 201 Stainless Steel Pipe |
| Material Grade | 201 / UNS S20100 |
| Material Type | Austenitic Stainless Steel |
| Manufacturing Standard | ASTM A554 (where applicable) |
| Manufacturing Process | Welded / ERW |
| Cross-Section | Round / Square / Rectangular |
| Outside Diameter (OD) | According to product dimensions |
| Wall Thickness | As per confirmed supply range |
| Length | Fixed / Cut-to-Length |
| Surface Finish | Mill / Brushed / Polished / Mirror |
| Surface Grade | No. 4 / No. 8 (where applicable) |
| End Type | Plain End / Cut End |
| Chromium (Cr) | 16.00–18.00% |
| Nickel (Ni) | 3.50–5.50% |
| Manganese (Mn) | 5.50–7.50% |
| Carbon (C) | ≤ 0.15% |
| Tensile Strength | ≥ 515 MPa (verify against product specification) |
| Yield Strength | ≥ 260 MPa (verify against product specification) |
| Inspection | Dimensional / Visual / Weld Inspection |
| Test Certificate | Material Test Certificate (Upon Request) |
Product Applications
Architectural Decoration & Handrails
201 stainless steel pipes are commonly used for indoor stair railings, handrails, balcony-style decorative barriers, and architectural trim. Round and square welded tubes with brushed or polished finishes provide a consistent appearance for interior installations. Grade 201 is generally selected for relatively dry environments where surface appearance, fabrication cost, and dimensional consistency are important.
Furniture Manufacturing
201 stainless steel tubes are used in chair frames, table legs, shelving systems, and commercial furniture structures. Round, square, and rectangular profiles can be cut, bent, and welded to accommodate different furniture designs. Wall thickness, weld quality, and surface finish are important considerations when manufacturing furniture that requires dimensional stability and a uniform decorative appearance.
Interior Structural & Decorative Frames
201 stainless steel square and rectangular tubes are used for office partitions, retail display frames, interior decorative structures, and shop fittings. Their flat surfaces simplify cutting, welding, and frame assembly, while polished or brushed finishes provide a consistent appearance. For load-bearing installations, tube dimensions, material properties, and connection strength must be verified against the design requirements.
Light Mechanical Fabrication
201 stainless steel welded tubes are used for equipment guards, machine enclosures, light-duty support frames, and fabricated components in relatively dry indoor environments. The material can be cut, drilled, formed, and welded using suitable fabrication procedures. Its work-hardening behavior, dimensional tolerances, and weld condition should be considered when producing components that require accurate assembly.
Frequently Asked Questions
What is the difference between 201 and 304 stainless steel pipe?
Grade 201 contains less nickel and more manganese than Grade 304, making it a lower-cost option in many markets. However, 304 generally offers better corrosion resistance, particularly in humid or chloride-containing environments. Grade 201 is commonly selected for indoor furniture, decorative tubing, and light structural applications.
Is 201 stainless steel pipe suitable for outdoor applications?
201 stainless steel pipe can be used in some sheltered outdoor environments, but it is more susceptible to staining and corrosion than Grade 304. Prolonged exposure to rain, coastal air, or chloride-containing moisture increases corrosion risk. Grade 304 or 316 is generally preferable for demanding outdoor conditions.
What sizes and shapes are available for 201 stainless steel pipe?
201 stainless steel welded tubing is commonly produced in round, square, and rectangular profiles. Available dimensions depend on the manufacturing equipment and supplier’s production range. Buyers should specify the outside diameter or section dimensions, wall thickness, length, and dimensional tolerances when requesting a quotation.
Can 201 stainless steel pipe be welded and bent?
Yes. Grade 201 tubing can be welded, cut, and bent using suitable fabrication procedures. Its relatively high work-hardening rate can increase forming forces, especially during tight-radius bending. Wall thickness, bend radius, tooling, and weld quality should be considered to prevent deformation or surface damage.
What surface finishes are available for 201 stainless steel pipe?
Common finishes include mill, brushed, polished, and mirror finishes. Brushed surfaces are often used for furniture and interior railings, while mirror-polished tubes are selected for decorative installations. Buyers should specify the required finish, surface appearance, and acceptable polishing defects before ordering.
What information is required to order 201 stainless steel pipe?
Please provide the material grade (201 / UNS S20100), tube shape, outside dimensions, wall thickness, length, surface finish, and order quantity. Include any applicable manufacturing standards, dimensional tolerances, inspection requirements, packaging instructions, and delivery destination for an accurate quotation.
