Super Duplex 2507 Tube , ASME SA789 UNS S32750 Seamless Duplex Steel Tube
ASME SA789 Super Duplex 2507 UNS S32750 Seamless Duplex Tube For Heat Exchanger
ASTM A789/ ASME SA789 Super Duplex 2507, also known as S32750, is a type of stainless steel that exhibits a unique combination of austenitic and ferritic properties (consist of approximately 50% austenite and 50% ferrite). This composition provides excellent mechanical strength and corrosion resistance.
The comparative advantages including: Higher Chromium and Molybdenum Content: 1. Compared to standard austenitic stainless steels, S32750 offers superior corrosion resistance, especially against chlorides and reducing environments. 2. Resistance to Localized Corrosion: Its resistance to pitting and crevice corrosion is significantly higher than that of conventional stainless steels.
ASME SA789 Super Duplex 2507 / UNS S32750 Duplex Steel Tube Equivalent Grade
| Alloy | UNS Designation | Werkstoff NR. | Specifications | AFNOR | Grade | 1.4410 |
|---|---|---|---|---|---|---|
| 2507 | S32750 | 1.4410 | A/SA789 | Z3 CN 25.06 Az | F53 | X2 Cr Ni MoN 25.7.4 |
ASME SA789 Super Duplex 2507 / UNS S32750 Duplex Steel Tube Chemical Composition
| Grade | C max | Si max | Mn max | P max | S max | Cr | Ni | Mo | N |
| UNS S32750 | 0.030 | 0.8 | 1.2 | 0.030 | 0.015 | 24.0-26.0 | 6.0-8.0 | 3.0-5.0 | 0.24-0.32 |
| UNS S31803 | 0.030 | 1.0 | 2.0 | 0.020 | 0.020 | 21.0-23.0 | 4.5-6.5 | 2.5-3.5 | 0.08-0.20 |
| UNS S31500 | 0.030 | 1.0 | 1.2-2.0 | 0.030 | 0.030 | 18.0-19.0 | 4.5-5.5 | 2.5-3.5 | 0.05-0.10 |
Key Properties of super duplex 2507/S32750
- Corrosion Resistance: Excellent resistance to pitting, crevice corrosion, and stress corrosion cracking. Suitable for chloride-rich environments.
- Strength: High tensile and yield strength, which enables it to withstand harsh conditions.
- Temperature Resistance: Can operate effectively in temperatures up to about 300°C (572°F).
- Durability: Good toughness and ductility, making it ideal for challenging industrial applications.
Applications
Oil and Gas Industry
Chemical Processing
Desalination Plants
Power Generation
Heat Exchangers
Pulp and Paper Industry
Automotive Industry
Construction
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