UNS S32750 Bolting Products
UNS S32750 is listed in the SUPER DUPLEX STAINLESS STEEL material family. The reference data below should be checked against the governing product specification, product form and delivery condition before selection or certification.
The reference chemistry table for UNS S32750 lists Carbon (C): 0.030% Max; Manganese (Mn): 1.20% Max; Phosphorus (P): 0.035% Max; Sulfur (S): 0.020% Max. Confirm exact limits and analysis tolerances against the governing standard and product form.
The mechanical-property table for UNS S32750 lists Tensile Strength: 795 Minimum MPa; Yield Strength: 550 Minimum MPa; Elongation: 15 Minimum %; Hardness: 310 Maximum BHN. These are reference entries; supplied condition, dimensions, test method and governing specification control the requirements, and the figures are not design allowables.
Werkstoff / EN cross-reference for UNS S32750: 1.4410. This comparison does not guarantee interchangeability; confirm chemistry, product form and condition against the governing specification.
View Technical Information →Standard identification and material designation information for UNS S32750.
The reference chemistry table lists Carbon (C): 0.030% Max; Manganese (Mn): 1.20% Max; Phosphorus (P): 0.035% Max; Sulfur (S): 0.020% Max. Confirm the governing standard, product analysis tolerances and product form before ordering.
| Element | Symbol | Composition |
|---|---|---|
| Carbon | C | 0.030% Max |
| Manganese | Mn | 1.20% Max |
| Phosphorus | P | 0.035% Max |
| Sulfur | S | 0.020% Max |
| Silicon | Si | 0.80% Max |
| Chromium | Cr | 24.00 – 26.00% |
| Nickel | Ni | 6.00 – 8.00% |
| Molybdenum | Mo | 3.00 – 5.00% |
| Nitrogen | N | 0.24 – 0.32% |
| Copper | Cu | 0.50% Max |
| Iron | Fe | Balance |
The table reports Tensile Strength: 795 Minimum MPa; Yield Strength: 550 Minimum MPa; Elongation: 15 Minimum %; Hardness: 310 Maximum BHN as reference data for UNS S32750. Actual requirements depend on condition, dimensions, test method and specification; these values are not design allowables.
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | 795 Minimum | MPa |
| Yield Strength | 550 Minimum | MPa |
| Elongation | 15 Minimum | % |
| Hardness | 310 Maximum | BHN |
UNS S32750 provides an exceptional combination of high mechanical strength and outstanding corrosion resistance for severe industrial environments.
Provides excellent resistance to pitting, crevice corrosion and chloride-containing environments.
Offers substantially higher strength than conventional austenitic stainless steels.
The duplex microstructure provides excellent resistance to chloride stress corrosion cracking.
High chromium, molybdenum and nitrogen content provide strong resistance to localized corrosion.
UNS S32750 is selected for applications requiring exceptional corrosion resistance and high mechanical strength in highly demanding environments.
Offshore equipment, subsea systems and components exposed to aggressive service environments.
Seawater systems, offshore platforms and marine components requiring high corrosion resistance.
Process equipment and components operating in aggressive chemical environments.
Pumps, piping and equipment exposed to chloride-rich seawater environments.
Consider chloride concentration, chemical exposure and operating temperature when selecting UNS S32750.
Appropriate welding procedures are required to maintain the correct duplex microstructure and corrosion resistance.
UNS S32750 is suitable for applications requiring high mechanical strength combined with exceptional corrosion resistance.
The commonly listed Werkstoff / EN cross-reference for UNS S32750 is 1.4410. Treat this as a grade comparison, not a guarantee of interchangeability. Verify chemistry, product form, condition and governing specification against the supplier certificate before substitution.
Yes. It provides excellent resistance to pitting, crevice corrosion and stress corrosion cracking.
It is commonly used in oil and gas, offshore, marine, chemical processing and seawater desalination applications.
Our engineering team can help you select suitable materials based on operating temperature, pressure and service conditions.