What is UNS S32760 material?
UNS S32760 is a high-performance super duplex stainless steel, known for its exceptional strength and superior resistance to corrosion, especially in chloride-rich, acidic, and sour environments, thanks to its high chromium, molybdenum, nitrogen, copper, and tungsten content, creating a balanced ferrite-austenite structure (50/50) with benefits like resistance to pitting and stress corrosion cracking, used in demanding oil & gas, chemical, and seawater applications.
What is equivalent to S32760?
UNS S32760 is a super duplex stainless steel, also known as Zeron 100. It is available as solid bar, plate, pipe, fittings, forgings and castings. When specifying castings, the nearest equivalent specifications are ASTM A890, ASTM A995 and ASME SA351/995 grade CD3MWCuN or 6A, also written as J93380 or 25Cr-7Ni-Mo-N.
| UNS | Duplex Industry Specifications |
| Super Duplex UNS S32760 | ASTM A182 F55, A240, A276, A314, A473, A479, A789, A790, A815, A928, A988 SAE J405 |
Chemical Composition
| Element | Content (%) |
|---|---|
| Iron, Fe | Balance |
| Chromium, Cr | 26 |
| Nickel, Ni | 8 |
| Molybdenum, Mo | 4 |
| Manganese, Mn | 1 |
| Silicon, Si | 1 |
| Copper, Cu | 1 |
| Tungsten, W | 1 |
| Nitrogen, N | 0.3 |
| Carbon, C | 0.03 |
| Sulfur, S | 0.015 |
| Phosphorous, P | 0.035 |
Mechanical Properties
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength | 730-930 MPa | 105877 - 134885 psi |
| Proof strength | 530 MPa | 76870 psi |
| Modulus of elasticity | 200 GPa | 29007 ksi |
| Elongation at break (in 50 mm) | 25% | 25% |
What is ASTM A479 uns S32760 material?
ASTM A479 UNS S32760 is a high-performance super duplex stainless steel alloy, known for exceptional strength and superior corrosion resistance, especially against chlorides and pitting, making it ideal for harsh environments in oil & gas, chemical processing, and seawater applications, available as bars, rods, and shapes for fasteners and structural components.
What Is the Difference Between S32750 and S32760?
S32750 and S32760 are both super duplex stainless steels with similar compositions, but the key difference lies in their minor alloying elements: S32760 contains deliberate additions of copper (Cu) and tungsten (W) for enhanced corrosion resistance, especially in acidic/sulfuric environments, while S32750 generally has less copper and lacks tungsten, offering slightly higher strength but relying more on its high Cr/Mo/N content for pitting resistance.
What is ASTM A790 uns S32760 material?
ASTM A790 UNS S32760 is a Super Duplex Stainless Steel known for exceptional strength and corrosion resistance, especially in harsh, chloride-rich environments, featuring a balanced mix of austenite and ferrite, high chromium, molybdenum, and nitrogen, making it ideal for offshore, chemical, and desalination applications, offering superior pitting and stress corrosion cracking resistance over standard steels.
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