Seamless Stainless Steel Structural Tubing Umbilical for Heat Exchanger - OD 4-31.8mm, Wall Thickness 0.7-2.11mm
Price:
Negotiable
MOQ:
Negotiable
Delivery Time:
30 DAYS
Brand:
zheheng
Product Description
Product Overview
Seamless stainless steel structural tubing umbilical designed specifically for heat exchanger applications, featuring advanced coil technology with dual-coil configuration for superior thermal efficiency.
Technical Specifications
| Production Process | First cold rolling, then cold drawing and coiling |
| Surface Treatment | Vacuum bright annealing (prevents oxidation, maintains clean and bright surfaces) |
| Delivery State | Soft state (HRB≤90) |
| Material Grades | 304/304L / 321/317L / 2205/2507 |
| Production Standards | ASTM(ASME)SA/A312 / A213 / A269, DIN, GB, JIS |
| Coil Tubing Specifications | OD: Φ4mm-31.8mm, Wall Thickness: 0.7-2.11mm |
| Tolerance Range | Outside Diameter: ±0.1mm, Wall Thickness: ±10% |
Coil Length & Production Details
- Single seamless coil tubing weight reaches approximately 120KG based on diameter and wall thickness
- Longer seamless coils require more complex production and command higher pricing
- Length calculated using stainless steel pipe theory formula based on requirements
- Complete seamless coils contain no welding points
- Multiple seamless coils can be butt-welded to create super-long tubing exceeding thousands of meters
Quality Assurance
- Hydraulic testing (10Mpa - 35Mpa)
- Air pressure testing
- Eddy current flaw detection
- Custom coding identification available
Packaging & Delivery
| Packaging Methods | Woven bags, plywood boxes, plywood spools for convenient transportation and storage |
| Production Cycles |
<30KG: 25-30 days
30-50KG: 35-45 days
50-120KG: 50-60 days
|
Key Advantages
- High thermal efficiency with simultaneous heat transfer through outer and inner coil bodies
- Superior oxidation and corrosion resistance using stainless steel construction
- Reduced leakage risk in hydraulic systems
- Minimized joint requirements during installation
- Enhanced safety performance for pipeline systems
- Custom cutting and bending capabilities to reduce waste and costs
Applications
Widely used in oil drilling, shipbuilding, aerospace, petrochemical refining equipment, spiral wound pipe heat exchangers, residual wound tube heat exchangers, chemical industry pipelines, fluid pipes, steam insulation pipes, heating coil pipes, high-pressure fluid pipes, umbilical cables, and PVC-sheathed cable protection systems.
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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