Cold Drawn Seamless Stainless Steel Precision Pipe Bright Surface Tight Tolerance ±0.03mm
Basic Properties
Place of Origin:
MADE IN CHAINA
Brand Name:
Baosteel，TISCO
Certification:
EN 10204 Type 3.1 / 3.2 available
Model Number:
201 / 202 / 301 / 302 / 303 / 304 / 304L / 305 / 309S / 310S / 316 / 316L / 317 / 317L / 321 / 347 / 409L / 410 / 420 / 430 / 440C / 2205 / 2507
Trading Properties
Minimum Order Quantity:
100kg
Price:
Negotiable (Request a Quote)
Payment Terms:
T/T，D/P，D/A，Western Union，PayPal
Supply Ability:
10000tons
Product Summary
Cold drawn seamless precision pipe is manufactured from solid billet through a process of piercing and cold drawing, resulting in no weld line, uniform wall thickness, and excellent dimensional accuracy. Compared to welded tubing, it offers superior pressure resistance and structural integrity, ...
Product Details
Highlight:
Seamless Stainless Steel Precision Pipe
,Cold Drawn Stainless Steel Precision Pipe
,Cold Drawn Seamless Pipe Bright Surface
Country Of Origin:
MADE IN CHAINA
Brand:
Baosteel，TISCO
Certifications:
ISO/EN 10204 Type 3.1 / 3.2 Available
Grade:
201 / 202 / 301 / 302 / 303 / 304 / 304L / 305 / 309S / 310S / 316 / 316L / 317 / 317L / 321 / 347 / 409L / 410 / 420 / 430 / 440C / 2205 / 2507 / 630 (17-4PH)
MOQ:
100kg
Price:
Negotiable (Request A Quote)
Packaging:
Wooden Case / Wooden Pallet / Steel Frame / Carton / Woven Bag
Delivery Time:
15-25days
Payment Terms:
T/T，D/P，D/A，Western Union，PayPal
Supply Capacity:
10000tons
Product Description
Cold drawn seamless precision pipe is manufactured from solid billet through a process of piercing and cold drawing, resulting in no weld line, uniform wall thickness, and excellent dimensional accuracy. Compared to welded tubing, it offers superior pressure resistance and structural integrity, making it ideal for high-reliability applications.
Key Features:
- No weld seam – homogeneous structure
- Tight tolerance: OD/ID up to ±0.03mm
- Smooth surface finish: Ra ≤ 0.4μm
- Enhanced mechanical properties through cold working
- Available in annealed, hard, or stress-relieved conditions
Product Specifications
| Parameter | Details |
|---|---|
| Applicable Standards | ASTM A519, DIN 2391, EN 10305-1, JIS G3445, GB/T 3639 |
| Common Grades | Stainless: 304/304L, 316/316L, 321 Carbon/Alloy: 20#, 45#, 4140, 4130 |
| OD Range | 6mm – 100mm (customizable up to 200mm) |
| Wall Thickness Range | 1mm – 15mm |
| Length | Up to 12m fixed length, or cut-to-size |
| Process | Piercing → Cold drawing → Annealing → Straightening → Pickling / Bright finishing |
| Delivery Condition | Cold drawn (hard), stress-relieved, or annealed & pickled |
Chemical Composition (Typical, %)
Stainless Steel Grades
| Grade | C | Si | Mn | P | S | Cr | Ni | Mo |
|---|---|---|---|---|---|---|---|---|
| 304 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 18.0-20.0 | 8.0-11.0 | – |
| 304L | ≤0.03 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 18.0-20.0 | 8.0-12.0 | – |
| 316L | ≤0.03 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 |
Carbon / Alloy Steel Grades
| Grade | C | Si | Mn | P | S | Cr | Mo |
|---|---|---|---|---|---|---|---|
| 20# | 0.17-0.23 | 0.17-0.37 | 0.35-0.65 | ≤0.035 | ≤0.035 | – | – |
| 45# | 0.42-0.50 | 0.17-0.37 | 0.50-0.80 | ≤0.035 | ≤0.035 | – | – |
| 4140 | 0.38-0.43 | 0.15-0.35 | 0.75-1.00 | ≤0.035 | ≤0.040 | 0.80-1.10 | 0.15-0.25 |
Third-party test reports available upon request.
Mechanical Properties
Stainless Steel Grades (Annealed)
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB) |
|---|---|---|---|---|
| 304 | ≥520 | ≥205 | ≥35 | ≤187 |
| 304L | ≥480 | ≥175 | ≥35 | ≤187 |
| 316L | ≥480 | ≥175 | ≥35 | ≤187 |
Carbon / Alloy Steel Grades (As-drawn or Annealed)
| Grade | Condition | Tensile Strength (MPa) | Yield Strength (MPa) | Hardness (HB) |
|---|---|---|---|---|
| 20# | Annealed | ≥410 | ≥245 | ≤156 |
| 45# | Annealed | ≥600 | ≥355 | ≤197 |
| 4140 | Annealed | ≥655 | ≥415 | ≤217 |
| 4140 | Cold drawn + tempered | ≥850 | ≥740 | ≤241 |
Hydraulic pressure test, eddy current test, and flattening test available upon request.
Applications
Due to its no-weld, homogeneous structure, cold drawn seamless precision pipe is widely used in high-pressure and high-safety industries:
| Industry | Typical Uses |
|---|---|
| Hydraulic Systems | Hydraulic cylinders, piston rods, fluid power lines |
| Oil & Gas | Downhole tubing, instrument lines, control lines |
| Automotive | Fuel injection rails, steering components, axle housings |
| Mechanical Engineering | Precision shafts, bearing sleeves, structural parts |
| Aerospace | Hydraulic and fuel delivery lines |
| Power Generation | Boiler tubes, heat exchanger components |
Contact Us
For samples, technical datasheets, or a custom quote, please contact us.
Mrs. Zhongcheng Metal
Manager
- Email: zhongcheng@metalsstainlesssteel.com
- Tel: 13309216881
- WhatsApp: 13309216881
-
WeChat:
13363905196
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