ASTM A269/A213 U Bend Stainless Steel Heat Exchanger Tube 0.5-508mm OD for Oil Industry
Price:
Negotiable
MOQ:
Negotiable
Delivery Time:
30 DAYS
Brand:
zheheng
Product Description
Product Overview
ASTM A269/A213 seamless stainless steel U bend heat exchanger tubes designed specifically for oil industry applications. These precision-engineered tubes feature pickling and annealing surface treatments for optimal performance in demanding environments.
Key Applications
- Fluid and gas transport systems
- Structural and machining applications
- Boilers and heat exchangers
- Water heater systems
- Air-conditioning equipment
Manufacturing Advantages
- Advanced cold draw machine technology
- State-of-the-art annealing equipment
- Superior mechanical properties
- Precise dimensional accuracy
- Comprehensive inspection methods and equipment
Technical Specifications
| Standards | ASTM A554, A249, A269, A270, A312 |
| Material Grades | 201 (Ni 0.8%), 202 (Ni 3.5%-4.5%), 301 (Ni 5%), 304 (Ni 8%, Cr 18%), 316 (Ni 10%, Cr 18%), 316L (Ni 10%-14%) |
| Outer Diameter | 0.5mm - 508mm |
| Thickness | 0.25mm - 60mm |
| Length | 6 meters standard or custom lengths |
| Surface Finishes | 180G, 320G, 400G Satin/Hairline; 400G, 500G, 600G, 800G Mirror |
| Testing Methods | Squash test, extended test, water pressure test, crystal rot test, heat treatment, NDT |
Dimensional Tolerances
- Outer Diameter: +/- 0.2mm
- Thickness: +/- 0.02mm
- Length: +/- 5mm
Chemical Composition
| Element | 201 | 202 | 304 | 316 | 430 |
|---|---|---|---|---|---|
| C | ≤0.15 | ≤0.15 | ≤0.08 | ≤0.08 | ≤0.12 |
| Si | ≤1.00 | ≤1.00 | ≤1.00 | ≤1.00 | ≤1.00 |
| Mn | 5.5-7.5 | 7.5-10 | ≤2.00 |
Mechanical Properties
| Property | 201 | 202 | 304 | 316 |
|---|---|---|---|---|
| Tensile Strength | ≥535 MPa | ≥520 MPa | ≥520 MPa | ≥520 MPa |
| Yield Strength | ≥245 MPa | ≥205 MPa | ≥205 MPa | ≥205 MPa |
| Extension | ≥30% | ≥30% | ≥35% | ≥35% |
| Hardness (HV) | <253 | <253 | <200 | <200 |
Weld Repair Specifications
For welded pipes with diameter ≥ NPS 6 and wall thickness ≥ 0.200, weld repairs are permitted using compatible filler metal. Repairs must not exceed 20% of seam length and use gas tungsten-arc welding with qualified filler materials.
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Company
Wenzhou Zheheng Steel Industry Co.,Ltd
Location
No999 .wenzhou airport wenzhou city,zhejiang china
Contact Person
BAIN SHEN