ASME Grade Carbon Stainless Steel Serpentine Tube - 1.5×OD Bending Radius, 35,000mm Length for Heat Exchangers
Price:
800 - 9000 USD / ton
MOQ:
5T
Delivery Time:
60-75days
Brand:
HDT
Product Description
Product Overview
ASME Grade Carbon and Stainless Steel Serpentine Tubes designed for high-performance heating applications in boilers, heat exchangers, and industrial heating systems.
Key Applications
Serpentine tube coils are widely used in boiler convection heating surfaces, including superheaters and reheaters. Available in both horizontal and vertical arrangements, these tubes feature bending radii starting from 1.5 times the outside diameter to ensure optimal pipe bending quality and performance.
Manufacturing Expertise
Hua Dong Energy Technology has specialized in Austenitic Stainless Steel, Nickel Alloy Steel, and other specialized alloys for over 35 years. With annual production exceeding 50,000 tons and serving clients across 45+ countries, our facilities maintain certifications including ABS, DNV, GL, BV, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9001-2008, and ISO 14001-2004.
Technical Specifications
Compliance 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 |
Custom alloys and steel grades available upon agreement.
Bending Specifications
- Bending Radius: From 1.5×OD to 1500mm
- Straight Tubes Maximum Length: 35,000 mm (before bending)
- Leg Length: Minimum 1 meter, Maximum 16,500 mm
- Heat treatment: Stress relieved after U-bending
- Hydrostatic testing: Maximum test pressure 600 bar for 10 seconds
Quality Assurance Testing
| Test Type | Description |
|---|---|
| Chemical Analysis | Performed according to required quality standards |
| Mechanical Testing | Tensile, Hardness, Flattening, Flare, Flange tests |
| Reverse-bend & Re-flat Tests | Compliance with ASTM A-450 and A-530 norms |
| Eddy Current Testing | Detection of subsurface homogeneities using digital flaw-mark system |
| Hydrostatic Testing | 100% testing per ASTM-A 450 norms, maximum pressure 20Mpa/7s |
| Visual Inspection | Thorough inspection by trained staff for surface flaws and imperfections |
Supplementary Testing
Additional testing includes: Eddy Current Testing, O.P Testing, Radiography Testing, Corrosion Testing, Micro Testing, Macro Testing, IGC Testing, Ultrasonic testing, and Liquid Penetrate testing.
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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
ZHANGJIAGANG HUA DONG ENERGY TECHNOLOGY CO.,LTD
Location
Rm. 1202, Buildiing A, Wanda Plaza, Zhangjiagang, Jiangsu, China
Contact Person
Yolanda Zou