Professional Manufacturer and exporter of ASTM A1082 UNS S32760 STUD BOLT HEAVY HEX NUTS in China
Material to UNS S32760 is a super duplex stainless steel with a microstructure of 50:50 austenite and ferrite.
The steel combines high mechanical strength (typically up to 600 MPa yield strength) and good ductility with outstanding corrosion resistance to marine environments and a wide, diverse range of oil & gas production environments. The alloy is supplied with a PREN (Pitting Resistance Equivalent) at >= 40.0 which guarantees high resistance to pitting corrosion. In addition, the steel offers high resistance to crevice corrosion and stress corrosion cracking. Ambient and sub-zero (down to minus 50 °C) notch ductility is good. These attributes mean that this super duplex steel can be used successfully as an alternative to 300 series stainless steel (such as type 316), standard 22% Cr duplex steel and precipitation hardening stainless steels. Where appropriate the alloy can be considered in lieu of more costly Grade 5 titanium or nickel based alloys.
UNS S32760 is a duplex especially designed for service in aggressive chloride-containing environments and has additions of W and Cu compared to UNS S32750
A1082/A1082M
Standard Specification for High Strength Precipitation Hardening and Duplex Stainless Steel Bolting for Special Purpose Applications
This specification covers high strength stainless steel bolting materials and bolting components for special purpose applications such as pressure vessels. Several grades of precipitation-hardened and duplex (ferritic-austenitic) stainless steels are covered. Selection will depend upon design, serviceconditions, mechanical properties and characteristics related to the application.
- Chemical Composition of UNS S32760
| Weight % | C | Mn | P | S | Si | Cr | Ni | Mo | N | Cu | W | PREN |
| Min. | 24,0 | 6,00 | 3,00 | 0,20 | 0,50 | 0,50 | 40 | |||||
| Max. | 0,030 | 1,00 | 0,025 | 0,010 | 1,00 | 26,0 | 8,00 | 4,50 | 0,30 | 1,00 | 1,00 |
PREN = % Cr+3.3 % Mo+16 % N ≥ 40
A1082/A1082M S32760 Stud Bolt Manufacture
Bars shall be produced in accordance with Specifications A276/A276M, A479/A479M or A564/A564M as applicable. Finish (hot or cold, ground, rough turned, drawn, etc.) shall be at the option of the manufacturer unless otherwise specified in the purchase order or contract
A1082/A1082M S32760 Stud Bolt Heat Treatment
Duplex Stainless (Ferritic-Austenitic) Steels shall be furnished in the solution-annealed condition
S32760 Stud Bolt Specification
| Standard spec: | ASTM A1082 GRADE 32760 |
| Diameter: | M4-M72 |
| Length: | 6-1000mm |