304/2507 Pre-Bent Stainless Steel U-Tubes for Heat Exchangers - 0.6mm to 3mm Thickness, ASTM A213 Compliant
Price:
Negotiable
MOQ:
Negotiable
Delivery Time:
30 DAYS
Brand:
zheheng
Product Description
Product Overview
Pre-bent stainless steel U-tubes manufactured according to ASTM/ASME SA213 standards, specifically designed for heat exchanger applications. Available in 304 and 2507 grades with thickness ranging from 0.6mm to 3mm.
Technical Specifications
Standard Dimensions
| Product Type | Available Sizes |
|---|---|
| Single Slot Round Tube | 38.1mm (15x15), 42.4mm (24x24), 48.3mm (27x30), 50.8mm (15x15), 50.8mm (20x20), 63mm (20x20), 63mm (25x25), 76mm (25x25) |
| Single Slot Square Tube | 32x32mm (15x5), 38x38mm (15x15), 40x40mm (20x20), 40x40mm (15x15), 50x50mm (20x20), 50x50mm (15x15) |
| Single Slot Rectangular Tube | 38x25mm (20x15), 50x25mm (15x15), 50x25mm (25x25) |
Tolerances & Standards
| Parameter | Specification |
|---|---|
| Thickness | 0.6mm - 3mm |
| Thickness Tolerance | +/-10% |
| Length Tolerance | +/-8mm |
| Outside Diameter Tolerance | According to ASTM A554 standard |
| Manufacturing Standards | ASTM A554, EN10296-2 |
Material Grades Available
Austenitic Steel
- TP304, TP304L, TP304H, TP304N
- TP310S, TP316, TP316L, TP316Ti, TP316H
- TP317, TP317L, TP321, TP321H, TP347, TP347H, 904L
Duplex Steel
- S32101, S32205, S31803, S32304, S32750, S32760
Other Grades
- TP405, TP409, TP410, TP430, TP439
Quality Assurance
Heat treatment performed using a full-automatic natural gas furnace with 24-meter length, maintaining temperature tolerance within 10℃ for consistent material properties.
Compliance Standards
- A312/A312M: Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
- A213/A213M: Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
- A269: Seamless and Welded Austenitic Stainless Steel Tubing for General Service
- A270: Seamless and Welded Austenitic Stainless Steel Sanitary Tubing
- A249/A249M: Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes
Packaging & Delivery
- Individual plastic sleeve protection for each tube
- Multiple tubes packed in weaving bags or polybags
- Small sizes (OD12.7mm to OD19mm): 5-20 pieces per bag
- Wooden cases available for thin stainless steel pipes or LCL shipments
- Standard delivery: Shipped within 25 days after payment
Product Application
Widely used in heat exchangers, boilers, superheaters, and various industrial applications across light industry, heavy industry, daily necessities, and decorative sectors.
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Company
Wenzhou Zheheng Steel Industry Co.,Ltd
Location
No999 .wenzhou airport wenzhou city,zhejiang china
Contact Person
BAIN SHEN