0.3mm - 2.0mm Thin Wall Stainless Steel Round Tubing Polished Finish
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.
| 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 |
| 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 | – |
| 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.
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Lightweight – Up to 70% lighter than standard schedule pipes
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Cost-Effective – Lower material content reduces overall cost
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Excellent Formability – Easily bent, rolled, and shaped
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Good Corrosion Resistance – Full stainless steel protection
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Aesthetic Appearance – Ideal for polished and decorative finishes
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Weldable – Easily joined using standard TIG/MIG welding
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High Strength-to-Weight Ratio – Maximum strength with minimum weight
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Smooth Internal Surface – Low friction for fluid flow
| 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 |
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Automotive Exhaust Systems – Lightweight, heat-resistant tubing for exhaust pipes and components
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Architectural Handrails – Decorative and structural railings for stairs and balconies
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Furniture Manufacturing – Frames for chairs, tables, shelving, and display racks
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HVAC Systems – Chilled water, refrigerant, and condensate drain lines
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Food & Beverage – Sanitary transfer lines for dairy, brewery, and beverage dispensing
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Marine Hardware – Boat railings and lightweight marine structures (316 grade)
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Medical Equipment – Frames and supports for hospital beds, carts, and lab benches
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General Fabrication – Machine guards, conveyor covers, and lighting fixtures
| 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 |
| 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 |
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