0.3mm - 2.0mm Thin Wall Stainless Steel Round Tubing Polished Finish

Price Negotiable
Price: Negotiable (Request a Quote)
MOQ: 100kg
Delivery Time: 15-25days
Brand: Baosteel,TISCO
Product Description

Thin Wall Stainless Steel Round Tubing is manufactured from high-quality austenitic stainless steel through precision roll forming and advanced TIG or laser welding processes. With wall thicknesses ranging from 0.3mm to 2.0mm, this tubing offers significant weight reduction, material efficiency, and cost savings while maintaining excellent corrosion resistance and structural integrity. Its lightweight characteristics make it ideal for applications where weight is a critical factor, including automotive exhaust systems, architectural handrails, furniture manufacturing, HVAC systems, and fluid transfer lines.

Product Specifications
Parameter Details
Standards ASTM A554, A269, EN 10217-7, JIS G3446
Available Grades 304, 304L, 316, 316L, 201
Outer Diameter 4 mm – 219 mm (1/8″ – 8″)
Wall Thickness 0.3 mm – 2.0 mm
Length 3m, 6m, or custom lengths up to 12m
Manufacturing Process Welded – TIG / Laser / ERW
Heat Treatment Annealed after welding
Surface Finish Mill finish, brushed (180-400 grit), or polished
End Finish Plain ends, deburred
Chemical Composition (Typical Values, %)
Grade C ≤ Si ≤ Mn ≤ P ≤ S ≤ Cr Ni Mo
304 0.08 0.75 2.00 0.045 0.030 18.0-20.0 8.0-10.5
304L 0.03 0.75 2.00 0.045 0.030 18.0-20.0 8.0-12.0
316 0.08 0.75 2.00 0.045 0.030 16.0-18.0 10.0-14.0 2.0-3.0
316L 0.03 0.75 2.00 0.045 0.030 16.0-18.0 10.0-14.0 2.0-3.0
201 0.15 0.75 5.5-7.5 0.045 0.030 16.0-18.0 3.5-5.5
Mechanical Properties (at Room Temperature)
Grade Tensile Strength (MPa) min Yield Strength (MPa) min Elongation (%) min Hardness (HRB) max
304 515 205 35 92
304L 485 170 35 92
316 515 205 35 95
316L 485 170 35 95
201 515 275 35 100

Tested in accordance with ASTM E8 / E8M.

Key Features
  • Lightweight – Up to 70% lighter than standard schedule pipes

  • Cost-Effective – Lower material content reduces overall cost

  • Excellent Formability – Easily bent, rolled, and shaped

  • Good Corrosion Resistance – Full stainless steel protection

  • Aesthetic Appearance – Ideal for polished and decorative finishes

  • Weldable – Easily joined using standard TIG/MIG welding

  • High Strength-to-Weight Ratio – Maximum strength with minimum weight

  • Smooth Internal Surface – Low friction for fluid flow

Dimensional Tolerances (ASTM A554)
Parameter Tolerance
Outer diameter ±0.1 mm for OD ≤ 25 mm; ±0.4% for larger
Wall thickness ±10%
Length (fixed) +0 / -3 mm
Straightness 0.2% of total length
Ovality Within OD tolerance
Applications
  • Automotive Exhaust Systems – Lightweight, heat-resistant tubing for exhaust pipes and components

  • Architectural Handrails – Decorative and structural railings for stairs and balconies

  • Furniture Manufacturing – Frames for chairs, tables, shelving, and display racks

  • HVAC Systems – Chilled water, refrigerant, and condensate drain lines

  • Food & Beverage – Sanitary transfer lines for dairy, brewery, and beverage dispensing

  • Marine Hardware – Boat railings and lightweight marine structures (316 grade)

  • Medical Equipment – Frames and supports for hospital beds, carts, and lab benches

  • General Fabrication – Machine guards, conveyor covers, and lighting fixtures

Surface Finish Options
Finish Description Application
Mill Finish As-welded, scale present Industrial / concealed
Brushed / Satin 180-240 grit directional grain Handrails, furniture
Polished 320-400 grit, semi-reflective Food equipment, decorative
Pickled Acid-cleaned, uniform matte Maximum corrosion resistance
Fabrication Guidelines
Operation Recommendation
Cutting Fine-tooth band saw (18-24 TPI) or abrasive cut-off wheel
Bending Use mandrel bender; avoid kinking
Welding TIG (GTAW) with low amperage; purge ID for sanitary applications
Drilling Sharp cobalt or HSS bits; low feed rate

Contact Us

For inquiries, technical datasheets, or custom sizes, please contact our sales team.

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Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Shanxi Zhongcheng Metal Co., Ltd.
Location Room 2, No. 221 Tianzhang Avenue, Fengdong New City, Xi'an, Shaanxi Province
Contact Person Zhongcheng Metal

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