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UNS S32760 super duplex stainless steel has enhanced pitting and crevice corrosion resistance in comparison with the ordinary austenitic or duplex types and is suitable for use in aggressive environments. This is due to the higher additions of chromium, molybdenum and nitrogen. This austenitic stainless type grade combines high strength and good ductility with outstanding corrosion resistance qualities. Super Duplex S32760 has excellent resistance to stress corrosion cracking and gives a high resistance to erosion corrosion and corrosion fatigue.
UNS S32760
| Chemical Element | % Present |
|---|---|
Carbon (C) | 0.00 - 0.03 |
Chromium (Cr) | 24.00 - 26.00 |
Manganese (Mn) | 0.00 - 1.00 |
Silicon (Si) | 0.00 - 1.00 |
Phosphorous (P) | 0.00 - 0.03 |
Sulphur (S) | 0.00 - 0.01 |
Nickel (Ni) | 6.00 - 8.00 |
Nitrogen (N) | 0.20 - 0.30 |
Copper (Cu) | 0.50 - 1.00 |
Molybdenum (Mo) | 3.00 - 4.00 |
Tungsten (W) | 0.50 - 1.00 |
Iron (Fe) | Balance |
| Mechanical Property | Value |
|---|---|
Elongation A50 mm | 25 % |
Hardness Brinell | 270 Max HB |
Tensile Strength | 750 N/mm2 |
0.2% Proof Stress | 550 N/mm2 |
S32760 Applications
1) Neutral chloride environment;
2) Oil refining industry;
3) Pipeline used for chemical industry;
4) Oil and gas industry;
5) Pulp and paper industry;
6) Fertilizer industry, urea industry, phosphate fertilizer industry;
7) Seawater environment, energy and environmental protection industry;
8) Light industry and food industry, food and pharmaceutical industry equipment;
9) High strength structural parts;
10) Hood desulfurization, infiltration desalination equipment, sulfuric acid plant;
11) Submarine pipelines, marine engineering fasteners, etc.;
12) Others.
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