DIN Cold Drawn Stainless Steel Coil Tubing 4-31.8mm OD 0.7-2.11mm Wall Thickness Annealed Surface
Price:
Negotiable
MOQ:
Negotiable
Delivery Time:
30 DAYS
Brand:
zheheng
Product Description
Product Overview
Precision cold-drawn stainless steel bright seamless coil tubing manufactured through advanced cold rolling and drawing processes. Available in diameters from 4mm to 31.8mm with wall thicknesses ranging from 0.7mm to 2.11mm.
Technical Specifications
| Parameter | Specification |
|---|---|
| Materials | 304/304L, 321/317L, 2205/2507 |
| Outer Diameter | Φ4mm - 31.8mm |
| Wall Thickness | 0.7mm - 2.11mm |
| Diameter Tolerance | ±0.1mm |
| Wall Thickness Tolerance | ±10% |
| Delivery State | Soft State (HRB≤90) |
| Production Standards | ASTM(ASME) SA/A312, A213, A269, DIN, GB, JIS |
Manufacturing Process
- Cold rolling followed by cold drawing and coiling
- Vacuum bright annealing process prevents oxidation
- Clean, bright, and delicate inner and outer surfaces
- Complete seamless construction with no welding points
Quality Assurance
- Hydraulic testing (10Mpa - 35Mpa)
- Air pressure testing
- Eddy current flaw detection
- Custom coding identification available
Production Details
| Coil Weight | Production Cycle |
|---|---|
| < 30KG | 25-30 days |
| 30KG - 50KG | 35-45 days |
| 50KG - 120KG | 50-60 days |
Key Advantages
- Reduces installation joints and improves safety performance
- Minimizes leakage risk in hydraulic systems
- Enables custom cutting and bending to reduce waste
- Lowers overall project costs through optimized material usage
- Enhances system operation security and reliability
Applications
- Oil drilling and petrochemical refining equipment
- Shipbuilding and aerospace industries
- Spiral wound pipe heat exchangers
- Chemical industry pipelines and fluid transport
- Steam insulation pipes and heating coil systems
- High-pressure fluid pipes and cable protection
Packaging & Delivery
- Woven bags, plywood boxes, or plywood spools
- Convenient for sea, land, and air transportation
- Reduces transportation costs and storage requirements
Product Image
Custom specifications and butt welding services available upon request for super-long coil tubing requirements.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Wenzhou Zheheng Steel Industry Co.,Ltd
Location
No999 .wenzhou airport wenzhou city,zhejiang china
Contact Person
BAIN SHEN