Super Duplex Steel S32760 Tube, Fittings, Welded Tubes, Bars, Sheets, Forgings
Available Products
Seamless tube, Plate, Rod, Forgings, Fasteners, Pipe Fittings.
Production Standards
| Production standards | |
| Product | ASTM |
| Bar, Rod and Wire | B 649 |
| Plate, Sheet and Strip | A 240, A 480, B 625, B 906 |
| Seamless Pipes and Tubes | B 677, B 829 |
| Welded pipe | B 673, B 775 |
| Weld tube | B 674, B 751 |
| Welded pipe fittings | B 366 |
| Billets and billets for forging | B 472 |
Chemical Composition
| % | Fe | Ni | Cr | Mo | C | Mn | Si | P | S | Cu | N | W |
| Min | Balance | 6.0 | 24.0 | 3.0 | 0.5 | 0.2 | 0.5 | |||||
| Max | 8.0 | 26.0 | 4.0 | 0.030 | 1.0 | 1.0 | 0.030 | 0.010 | 1.0 | 0.3 | 1.0 |
Physical Properties
| Density | 8.1g/cm3 |
| Melting | 1320-1390℃ |
S32760 Material Properties
S32760 (F55), X2CrNiMoCuWN 25.7.4, German standard 1.4501, strong strength and corrosion resistance, mainly used in chemical processing, petrochemical and subsea equipment. It has strong resistance to chloride corrosion, high thermal conductivity and low thermal expansion coefficient. Higher chromium, molybdenum and nitrogen content, it has high resistance to pitting, crevice corrosion and general corrosion.
Alloy S32760 is a super duplex stainless steel supplied in the hot worked and solution annealed condition. As a super duplex stainless steel, it combines the desirable aspects of austenitic and ferritic steels. Higher chromium, molybdenum and nitrogen content results in a Pitting Resistance Equivalent Number (PREN) > 40, providing superior pitting and crevice corrosion capabilities over austenitic and duplex stainless steels in almost all corrosive media, and a critical pitting temperature Caution over 50°C. A version of the PREN formula also includes W as a positive effect on overall pitting resistance.
It offers higher strength than austenitic and 22% Cr duplex stainless steels and is listed to NACE MR 0175 for sour service and ASME for pressure vessel applications.
S32760 Corresponding Grade
1.4501
X2CrNiMoCuWN 25-7-4
Z3CND25.06Az
Norsok MDS D57
SAF32760
ASTM A276/A476
UNS S32760 (Super Duplex 32760)
ASME A182 F55
CD3MWCuN (casting grade)
25Cr
S32760 Material Application Areas
S32760 is a kind of high strength and corrosion resistance, mainly used in chemical processing, petrochemical and subsea equipment. Application areas: Oil and gas industry equipment Offshore platforms, heat exchangers, underwater equipment, fire fighting equipment Chemical processing industry, vessel and pipeline industry Desalination plants, high pressure RO plants and submarine pipelines Mechanical components, high strength, anti-corrosion components.
