Ferralium 255 Bolting Products
Ferralium 255 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 Ferralium 255 lists Carbon (C): 0.025% Max; Manganese (Mn): 0.80 – 1.20%; Silicon (Si): 0.70% Max; Phosphorus (P): 0.025% Max. Confirm exact limits and analysis tolerances against the governing standard and product form.
The mechanical-property table for Ferralium 255 lists Tensile Strength: 790 Minimum MPa; Yield Strength: 586 Minimum MPa; Elongation: 25 Minimum %; Hardness: 220 – 270 HB. 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 Ferralium 255: 1.4507. 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 Ferralium 255.
The reference chemistry table lists Carbon (C): 0.025% Max; Manganese (Mn): 0.80 – 1.20%; Silicon (Si): 0.70% Max; Phosphorus (P): 0.025% Max. Confirm the governing standard, product analysis tolerances and product form before ordering.
| Element | Symbol | Composition |
|---|---|---|
| Carbon | C | 0.025% Max |
| Manganese | Mn | 0.80 – 1.20% |
| Silicon | Si | 0.70% Max |
| Phosphorus | P | 0.025% Max |
| Sulfur | S | 0.005% Max |
| Chromium | Cr | 24.50 – 26.50% |
| Nickel | Ni | 5.50 – 6.50% |
| Molybdenum | Mo | 3.10 – 3.80% |
| Copper | Cu | 1.50 – 2.00% |
| Nitrogen | N | 0.20 – 0.25% |
| Iron | Fe | Balance |
The table reports Tensile Strength: 790 Minimum MPa; Yield Strength: 586 Minimum MPa; Elongation: 25 Minimum %; Hardness: 220 – 270 HB as reference data for Ferralium 255. Actual requirements depend on condition, dimensions, test method and specification; these values are not design allowables.
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | 790 Minimum | MPa |
| Yield Strength | 586 Minimum | MPa |
| Elongation | 25 Minimum | % |
| Hardness | 220 – 270 | HB |
Ferralium 255 combines high mechanical strength, excellent corrosion resistance and good toughness for severe industrial and marine service conditions.
Provides excellent resistance to aggressive chemical and chloride- containing environments.
Offers significantly higher strength than many conventional stainless steels.
Designed to provide excellent resistance to localized corrosion in severe service.
Maintains good ductility and impact strength in demanding applications.
Ferralium 255 is selected for applications requiring high strength and reliable corrosion resistance in severe environments.
Offshore and high-pressure equipment exposed to corrosive service environments.
Components exposed to seawater and chloride-containing environments.
Equipment used in aggressive chemical processing environments.
Corrosion-resistant components for demanding seawater processing systems.
Consider chloride concentration, chemical composition and operating temperature when selecting Ferralium 255.
Appropriate fabrication and welding procedures should be used to maintain the required duplex microstructure and corrosion resistance.
Ferralium 255 is particularly suitable where high strength and corrosion resistance are required together.
The commonly listed Werkstoff / EN cross-reference for Ferralium 255 is 1.4507. 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.
It is commonly used in offshore, marine, oil and gas, chemical processing and desalination applications.
Yes. Ferralium 255 provides excellent resistance to pitting, crevice corrosion and demanding chloride-containing environments.
Our engineering team can help you select suitable materials based on operating temperature, pressure and service conditions.