ASME SA790 S31500 Duplex Stainless Steel Condenser Tube - 630 MPa Tensile Strength, 440 MPa Yield
S31500 is a duplex (austenitic-ferritic) stainless steel material offering exceptional performance characteristics for demanding industrial applications. This ASME SA790 certified pipe is specifically designed for use in heat exchangers, condensers, and other critical equipment.
- High resistance to stress corrosion cracking (SCC) in chloride-bearing environments
- Excellent resistance to general corrosion and pitting
- High mechanical strength - approximately twice the proof strength of austenitic grades
- Superior resistance to erosion corrosion and corrosion fatigue
- Favorable physical properties for design optimization
- Excellent weldability for fabrication and installation
| Element | Min (%) | Max (%) |
|---|---|---|
| C | - | 0.03 |
| Mn | 1.2 | 2.0 |
| P | - | 0.03 |
| S | - | 0.03 |
| Si | 1.4 | 2.0 |
| Cr | 18.0 | 19.0 |
| Ni | 4.2 | 5.2 |
| Mo | 2.5 | 3.5 |
| N | 0.05 | 0.1 |
| Fe | Balance | |
| Property | Value |
|---|---|
| Tensile Strength (Min) | 630 MPa |
| Yield Strength (Min) | 440 MPa |
| Elongation (Min) | 30% |
| Hardness (Max) | 30 HRC |
| Density | 7.8 kg/dm³ |
All pipes undergo comprehensive quality testing including:
- Hydraulic pressure testing
- Eddy current testing (ECT)
Pipes are carefully packaged to prevent damage during transportation and storage, ensuring they arrive in perfect condition.
Ideal for use in fertilizer production, paper manufacturing, petroleum refining, chemical processing, and other industrial applications requiring heat exchangers and condensers operating in chloride ion environments.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.