Precision Cold Drawn Stainless Steel Seamless Tube Bright Annealed Stainless Steel Tubing
Product Details
Cold Drawn Stainless Steel Seamless Tube
,Precision Stainless Steel Seamless Tube
,Cold Drawn Bright Annealed Stainless Steel Tubing
The Cold-Drawn Stainless Steel Seamless Tube is manufactured through a precision cold-drawing process that enhances dimensional accuracy, surface finish, and mechanical properties. This method involves pulling a hollow billet through a die at room temperature, resulting in a uniform wall thickness, tight tolerances, and a smooth, weld-free surface. The cold-working process also increases tensile and yield strength compared to hot-rolled tubes. Ideal for high-pressure, high-precision, and critical environment applications.
| Parameter | Details |
|---|---|
| Standards | ASTM A269, A312, A213; EN 10216-5; GB/T 14976; JIS G3459 |
| Available Grades | 304, 304L, 316, 316L, 321, 310S, 347, Duplex 2205 |
| Outer Diameter | 3 mm – 350 mm |
| Wall Thickness | 0.5 mm – 25 mm |
| Length | Fixed lengths 3m / 6m, or custom lengths upon request |
| Manufacturing Process | Cold drawn (multiple passes with intermediate annealing) |
| Surface Finish | Bright annealed, pickled, polished, or as required |
| Tolerances | High precision – ±0.05 mm to ±0.1 mm depending on size |
| 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 | – |
| 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 |
Composition for other grades available upon request or per applicable standards.
Note: Cold-drawn tubes typically exhibit higher strength than annealed tubes due to work hardening.
| Grade | Condition | Tensile Strength (MPa) min | Yield Strength (MPa) min | Elongation (%) min | Hardness (HB) max |
|---|---|---|---|---|---|
| 304 | Cold drawn (as-drawn) | 620 | 515 | 15 | 201 |
| 304 | Annealed | 515 | 205 | 40 | 201 |
| 316 | Cold drawn (as-drawn) | 620 | 515 | 15 | 217 |
| 316 | Annealed | 515 | 205 | 40 | 217 |
| 316L | Cold drawn (as-drawn) | 585 | 480 | 15 | 217 |
| 316L | Annealed | 485 | 170 | 40 | 217 |
Tested in accordance with ASTM E8 / E8M. Annealed condition available upon request.
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High-pressure hydraulic and pneumatic systems
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Precision instrument tubing
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Automotive fuel injection lines
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Medical device components
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Chemical and petrochemical processing
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Heat exchangers and condensers
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Aerospace and defense components
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Food and beverage processing equipment
For inquiries, technical datasheets, or custom sizes, please contact our sales team.
Mrs. Zhongcheng Metal
Manager
- Email: zhongcheng@metalsstainlesssteel.com
- Tel: 13309216881
- WhatsApp: 13309216881
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WeChat:
13363905196
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