DELLOK Seamless Superheater TP321 Stainless Steel U Bend Tube - 35000mm Length, 600 Bar Pressure Rating
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MOQ:
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Delivery Time:
Ex-work within 1 month on receipt of order.
Brand:
DELLOK
Product Description
Product Overview
DELLOK Seamless Superheater TP321 Stainless Steel U Bend Tube is engineered for high-temperature applications in boiler and superheater systems. Manufactured from ASTM A213 TP321/321H stainless steel, these tubes offer exceptional corrosion resistance and thermal stability.
Technical Specifications
Material Standards
- ASTM A213/A213M: Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
- U-Bend Standards: ASTM A688/ASME SA688, ASTM A803/ASME SA803, ASTM A556/ASME SA556
Available Steel Grades
| Ferrite | Austenite | Duplex | Super Duplex | Ni-Alloys | Titanium |
|---|---|---|---|---|---|
| TP410 TP405 S44400 S44660 TP430 | TP304/304L TP316/316L TP316Ti TP317/317L TP321 TP347 | S31803 S32205 S32304 | S32750 S32760 | N06600 N08020 N00880 N08825 N08904 | Gr.2 |
Dimensions & Capacity
Straight Tubes Maximum Length: 35000 mm
Unit Leg Length: Min 1 Meter, Max 16500 mm (For Max R=1500mm)
Manufacturing & Quality Assurance
Heat Treatment
Stress relieved after U-bending (bending area plus 300mm for each leg).
Hydrostatic Testing
- Maximum test pressure: 600 Bar
- Holding time: 10 seconds
- Medium: Dematerialized water
- Compressed air cleaning after hydro-test
Quality Testing Procedures
| Test Type | Description |
|---|---|
| Chemical Analysis | Performed according to required quality standards |
| Destructive/Mechanical Testing | Tensile, hardness, flattening, flare, flange tests |
| Reverse-bend & Re-flat Tests | Compliant with ASTM A-450 and A-530 norms |
| Eddy Current Testing | Digital flaw-mark testing system for subsurface homogeneity detection |
| Hydrostatic Testing | 100% testing per ASTM-A 450 norms, maximum pressure 20Mpa/7s |
| Air Under Pressure Test | Detection of air leakage evidence |
| Visual Inspection | Thorough inspection by trained staff after passivation |
Supplementary Testing
- Eddy Current Testing
- O.P Testing
- Radiography Testing
- Corrosion Testing
- Micro Testing
- Macro Testing
- IGC Testing
- Ultrasonic testing
- Liquid Penetrate testing
Packaging
Transport-worthy pre-fumigated wooden boxes with polyethylene film wrapping and soft plastic end caps, customized according to PO requirements.
Product Images
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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
Dellok Yonghui Radiating Pipe Manufacturing Co.,Ltd.
Location
No.18 Tianyue Road,Yanzhou,Jiangsu China
Contact Person
Peter Cheng