Duplex Stainless Steel 31803 / 32205 STANDARDS: UNS S31803 / UNS S32205 : Euronorm 1.4462

PRODUCT FORMS / ASTM REFERENCES

Sheet / Plate

Round bar

Forgings

ASTM A240 / A240M

ASTM A276 / ASTM A479

ASTM A182

DESCRIPTION

Certified to UNS 31803, UNS S32205 and Werkstoff 1.4462 (also in accordance to

2205), Duplex Stainless Steel 31803 has a microstructure split approximately

50-50 Austenitic and ferrite. As such, it demonstrates properties of both Austenitic

and ferritic, characterised by high yield strength, good fatigue strength and

excellent corrosion resistance.

TYPICAL APPLICATIONS

• Process industry

• Oil & Gas E & P

• Marine applications

• Bridges

• Food processing

MECHANICAL PROPERTIES*

PROPERTY

Proof stress 0.2

Tensile strength

Elongation % in mm

Brinell hardness HB

31803

450 N / mm2

650 - 880 N / mm2

> 25%

< 293

*Typical room temperature properties A240 product

CHEMICAL COMPOSITION

31803

32205

Chromium CarbonManganese SiliconPhosphorus NitrogenSulphur Iron

0.03 (max)

0.03 (max)

2.00 (max)

2.00 (max)

Molybdenum

2.5 - 3.5

3.0 - 3.5

21.0 - 23.0

22.0 - 23.0

0.03 (max)

0.03 (max)

0.02 (max)

0.02 (max)

1.0 (max)

1.0 (max)

0.08 - 0.20

0.14 - 0.20

Bal

Bal

Nickel

4.5 - 6.5

4.5 - 6.5

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. The information provided in this datasheet has been drawn from various recognised sources, including EN Standards,

recognised industry references (printed & 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. 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.

Kloeckner Metals UK | Head Office

Valley Farm Road, Stourton, Leeds,

West Yorkshire, LS10 1SD

@KloecknerUK

Kloeckner Metals UK

Kloeckner Metals UK

t: 0113 254 0711

e: enquiries@kloeckner.com

www.kloecknermetalsuk.com

shop.kloeckner.co.uk

Combined with our extensive stock range, we also offer a range of added value processes delivering cost effective supply chain

solutions to enhance the efficiency and profitability of valued customers. These include Water Jet Cutting, laser cutting, High

Definition Plasma, polishing, coating, guillotines and more….

PHYSICAL PROPERTIES

20oC

200

-

15

0.80

100oC 200oC 300oC

Modules of

Elasticity (GPa)

Mean Coefficient

of linear

expansion

between 20oC &

(10 - x K - 1)

Thermal

Conductivity

(W / m.K)

Electrical

Resistivity

(’Ω.mm2 / m)

194

13

-

-

186

13.5

-

-

180

14

-

-

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