Welded Duplex Steel Pipe 2205 Duplex Seamless Steel Pipe
2507 Super Duplex Stainless Steel Pipe S32750 Seamless Pipe
ASTM A789 / A790 2205 / 2507 Duplex Steel Seamless Pipe With Cold Rolled
Duplex stainless steel was developed to combat common corrosion problems encountered with the 300 series stainless steels. "Duplex" describes a family of stainless steels that are neither fully austenitic (like 304 stainless) nor purely ferritic (like 430 stainless). The advantage of a duplex structure is that it combines the favorable qualities of ferritic alloys (stress corrosion cracking resistance and high strength) with those of austenitic alloys (ease of fabrication and corrosion resistance).
UNS32750 super duplex stainless steel pipes provide enhanced corrosion resistance compared to other materials. These super duplex steel pipes offer greater tensile and yield strength, excellent ductility, and superior stress corrosion cracking resistance. They help clients reduce purchase costs while maintaining quality standards.
Product Specifications
| Material Grade |
S32205, S31803, S32304, S32750, F51, F53, 2205, 2507 |
| Outer Diameter |
10.3mm - 1219mm |
| Wall Thickness |
1.24mm - 54.59mm |
| Length |
As per customer's requirement |
| Standard |
ASTM A789; ASTM A790; EN 10216-5 |
Applications
- Petroleum industry
- Chemical industry
- Instrumentation
- Industrial transportation
- Mechanical structure industry
- High corrosion resistance applications (offshore industry)
Chemical Composition
| Grade |
C max |
Si max |
Mn max |
P max |
S max |
Cr |
Ni |
Mo |
N |
| UNS S32750 |
0.03 |
0.8 |
1.2 |
0.03 |
0.015 |
24.0-26.0 |
6.0-8.0 |
3.0-5.0 |
0.24-0.32 |
| UNS S31803 |
0.03 |
1 |
2 |
0.02 |
0.02 |
21.0-23.0 |
4.5-6.5 |
2.5-3.5 |
0.08-0.20 |
Physical Properties
| Grade |
Y.S. MPa min |
T.S. Mpa min |
Elongation % |
Hardness HRC |
| UNS S32750 |
550 |
800 |
15 |
20 |
| UNS S31803 |
450 |
620 |
25 |
20 |
Product Advantages
- Superior surface finish
- Better mechanical properties
- More precise dimensions
- Comprehensive inspection methods and equipment
Ordering Information
| Price Item |
FOB, CFR, CIF or as negotiation |
| Payment |
T/T, LC or as negotiation |
| Delivery Time |
30 working days after receiving deposit (based on order quantity) |
| Package |
Iron case; woven bag or as per customer's requirement |
| Quality Documentation |
Mill Test Certificate supplied with shipment, Third Party Inspection acceptable |
Quality Testing
- NDT (Ultrasonic test, Eddy Current test)
- Mechanical Test (Tension Test, Flaring Test, Flattening Test, Hardness Test, Hydraulic test)
- Metal Test (Metallographic Analysis, Impact Test - High/low temperature)
- Chemical Analysis (Photoelectric Emission Spectroscopic)
Main Markets
Europe, Middle East, Southeast Asia, South America
Product Images