S32760 / SEACOL-760

S32760 is a grade of super-duplex based on 25% chromium / 7% nickel with an addition of tungsten which enhances the pitting index (PREN) even further above the 40 minimum and also contributes to alloy strength.

This high resistance to pitting is combined with a high tensile strength and higher resistance to stress corrosion cracking at moderate temperatures to that of conventional austenitic stainless steels. A small addition of copper (lower than in S32550 / AMAZON 256) enhances its general corrosion resistance.

Related Specifications of S32760

  • F55
  • ASTM A276
  • NACE MR 0175
  • 1.4501
  • X2CrNiMoCuWN25-7-4 (EU)

Nominal Composition of S32760

Fe rem, Cr 25.0%, Ni 7.0%, Mo 3.5%, Cu 1.0%, W 1.0% N 0.25%

Mechanical Properties of S32760

Ultimate Tensile Strength (N/mm²) Proof Stress (N/mm²) Elongation (%) Hardness (HB)
750 550 25 280 max

Key Features of S32760

  • Very high strength
  • Very high resistance to pitting
  • Very good corrosion resistance
  • High resistance to erosion and abrasion in flowing systems
  • High resistance to stress corrosion cracking, fatigue and erosion

Applications of S32760

Offshore & marine | Offshore platforms, components for gas, oil and process cooling plants; instrumentation, wellhead and subsea wellhead fittings; desalination plants, seawater cooled heat exchangers, cargo heating systems, marine shafts (for boats etc) and high strength fasteners

Chemical processing | Equipment handling organic or dilute sulphuric acid, process solutions contaminated with chlorides, refinery equipment, desulphurising and distillation units, sewage plant components, fire extinguishing systems, general processing and mixing plant

Columbia Metals - a leading supplier of S32760

With decades of experience and a huge range of stock, Columbia Metals is an industry leader in the supply of S32760 and other high quality specialist engineering alloys.

To buy or learn more about S32760 contact us now, or fill in the enquiry form on the right hand side and we will be in touch shortly.

 Click here to download an S32760 data sheet.

MARINE & DEFENCE
  Related Specifications Mechanical Properties
Alloy Name BS UNS BS EN Others Ultimate Tensile Strength N/mm² Minimum Yield Strength N/mm² Elongation % Hardness HB