ASTM A479 SUPER DUPLEX UNS S32750 STUD BOLTS,2507 Stus bolt
China Super_Duplex_2507 UNS S32750 Stud bolt MANUFACTURER
S32750 is the standard grade of super-duplex stainless steel based on 25% chromium, 7% nickel and significant additions of molybdenum, manganese and nitrogen.
Super Duplex UNS S32750 is the most common super duplex grade in the market.
DIN 1.4410 X2CrNiMoN25-7-4 2507 Super Duplex Stainless Steel
UNS S32750 STUD BOLTS SPECIFICATIONS
Dimensions : DIN 975/976, ASME B18.2.1, B18.31.3, B16.5
Certification : Dual Certified As per ASTM & ASME Codes
Grade : UNS S32750 F53
Standard : ASTM A182, A479 / ASME SA182, SA479
2507/ uns s32750 stud bolts Applications
- Oil and Gas industry equipment
- Offshore platforms, heat exchangers, process and service water systems, fire-fighting systems, injection and ballast water systems
- Chemical process industries, heat exchangers, vessels, and piping
- Desalination plants, high pressure RO-plant and seawater piping
- Mechanical and structural components, high strength, corrosion-resistant parts
- Power industry FGD systems, utility and industrial scrubber systems, absorber towers, ducting, and piping
astm-a479
Standard Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels
This specification covers hot- and cold-finished bars of stainless steel, including rounds, squares, and hexagons, and hot-rolled or extruded shapes such as angles, tees, and channels for use in boiler and pressure vessel construction. Four grades of the stainless steel are available which includes austenitic, austenitic-ferritic, ferritic, and martensitic grades. Mechanical properties such as tensile strength, yield strength, elongation, and hardness shall be determined for the specimens subjected to normalized, tempered, annealed, and quenched conditions. The austenitic stainless steels shall be subjected to heat treatment and shall undergo corrosion test.
SUPER DUPLEX STEEL ALLOY S32750 STUD BOLTS CHEMICAL COMPOSITION
| Element | Content (%) |
|---|---|
| Chromium, Cr | 24 – 26 |
| Nickel, Ni | 6 – 8 |
| Phosphorous, P | 0.035 max |
| Carbon, C | 0.030 max |
| Sulfur, S | 0.020 max |
| Molybdenum, Mo | 3 – 5 |
| Manganese, Mn | 1.20 max |
| Silicon, Si | 0.80 max |
| Copper, Cu | 0.50 max |
| Nitrogen, N | 0.24 – 0.32 |
| Iron, Fe | Balance |
SUPER DUPLEX STEEL UNS S32750 STUDBOLTS MECHANICAL PROPERTIES
| Grade | Tensile Strength (MPa) min |
Yield Strength 0.2% Proof (MPa) min |
Elongation (% in 50mm) |
Hardness Rockwell C (HR C) |
|---|---|---|---|---|
| Alloy 32750 | 795 | 550 | 15 | 32max |
SUPER DUPLEX STEEL UNS S32750 STUD BOLT PHYSICAL PROPERTIES
| Properties | Metric | Imperial |
|---|---|---|
| Density | 7.8 g/cm3 | 0.281 lb/in3 |
| Melting point | 1350°C | 2460°F |
SUPER DUPLEX STEEL UNS S32750 STUDBOLT GRADE DESIGNATION
| Alloy | Common Name | Related Specification | ||
|---|---|---|---|---|
| European | UNS | ASTM/ASME | ||
| Alloy S32750 | SAF S32750 ® | 1.4410 | S32750 | F53 |
UNS S32750 is a super duplex stainless steel offering superior corrosion resistance, excellent mechanical strength, and outstanding performance in harsh environments. It combines high chromium, molybdenum, and nitrogen levels with a dual-phase microstructure of ferrite and austenite, providing exceptional durability against stress corrosion cracking, pitting, and crevice corrosion.
