Stainless Steel
1.4462 Duplex (S32205) F51

Datasheet Updated

18 July 2022

Range

Product FormImperial SizesMetric Sizes
Round Bar Peeled K124"100mm

Specifications

Commercial

F51

EN

1.4462

US

S32205

A duplex austenitic-ferritic chromium-nickel-molybdenum stainless steel.

Chemical Composition

EN 10088-3

1.4462 Steel

Element % Present

Carbon (C)

0.00 - 0.03

Chromium (Cr)

21.00 - 23.00

Manganese (Mn)

0.00 - 2.00

Silicon (Si)

0.00 - 1.00

Phosphorous (P)

0.00 - 0.03

Sulphur (S)

0.00 - 0.02

Nickel (Ni)

4.50 - 6.50

Nitrogen (N)

0.10 - 0.22

Molybdenum (Mo)

2.50 - 3.50

Iron (Fe)

Balance

Alloy Designations

Grade 1.4462/2205 is similar to but may not be a direct equivalent:

  • UNS S31803
  • UNS S32205
  • BS 318S13

Supplied Forms

  • Bar
  • Fittings & Flanges
  • Pipe
  • Tube

Applications

  • Process industry components in sulphuric acid, nitric acid, phosphoric acid, ethylene oxide, polypropylene & PVC production
  • Equipment handling organic & fatty acids, chemical storage, tankers, heat exchangers
  • Marine industry and shipbuilding propellers, shafts, rudders, shaft seals, pumps, bolts, fasteners, valves, instrumentation
  • Oil and chemical tankers
  • Oil & Gas industry pumps, valves, pipe, vessels, wellhead equipment, subsea equipment, separators, heat exchangers
  • Pollution control systems, effluent scrubbing, flue gas desulphurisation (FGD)
  • Waste water treatment, sour water purification
  • Pulp & paper industry applications such as pulp liquor heaters, bleach tower linings, digesters, brownstock washers
  • Food industry applications including brewery piping, evaporators, hot liquor tanks, presses

Characteristics

  • Higher strength than standard stainless steels
  • Higher corrosion resistance than Alloy 316L stainless steel in a wide variety of corrosive chemicals including sulphuric, phosphoric and nitric acids
  • Good resistance to pitting and crevice corrosion in seawater
  • High stress corrosion resistance
  • Lower thermal expansion than austenitic stainless steels
  • Higher thermal conductivity than austenitic stainless steels

Mechanical Properties

EN 10088-3

Bar Up to 160mm Dia/Thickness

Property Value

Proof Stress

450 Min MPa

Tensile Strength

650 to 880 MPa

Elongation A50 mm

25 Min %

Hardness Brinell

270 Max HB

Disclaimer

This Data is indicative only and as such is not to be relied upon in place of the full specification. In particular, mechanical property requirements vary widely with temper, product and product dimensions. All information is based on our present knowledge and is given in good faith. No liability will be accepted by the Company in respect of any action taken by any third party in reliance thereon. Please note that the 'Datasheet Update' date shown above is no guarantee of accuracy or whether the datasheet is up to date.

The information provided in this datasheet has been drawn from various recognised sources, including EN Standards, recognised industry references (printed S online) and manufacturers' data. No guarantee is given that the information is from the latest issue of those sources or about the accuracy of those sources. Material supplied by the Company may vary significantly from this data but will conform to all relevant and applicable standards. As the products detailed may be used for a wide variety of purposes and as the Company has no control over their use; the Company specifically excludes all conditions or warranties expressed or implied by statute or otherwise as to dimensions, properties and/or fitness for any particular purpose, whether expressed or implied. Advice given by the Company to any third party is given for that party's assistance only and without liability on the part of the Company. All transactions are subject to the Company's current Conditions of Sale. The extent of the Company's liabilities to any customer is clearly set out in those Conditions; a copy of which is available on request.