Super Duplex / 1.4501

Alternative and trade names
ASTM A473 Grade S32760, EN 10088-3 1.4501, ASTM A182 Grade F55, ASTM A240 Grade S32760, ASTM A479 Grade S32760, ASTM A276 Grade S32760
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Description

UNS S32760 (F55 / 1.4501) is listed in NACE MR 01 75 for sour service and having gained ASME Approval for Pressure Vessel applications.

Related Standards

Equivalent Materials

This material data has been provided by Hempel Special Metals.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

PropertyTemperatureValue

Density

23.0 °C

7.81 g/cm³

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Mechanical

PropertyTemperatureValueComment

Charpy impact energy, V-notch

-40.0 °C

35 J

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min.

23.0 °C

80 J

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min.

Elastic modulus

23.0 °C

199 GPa

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Elongation

23.0 °C

25 %

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min.

Hardness, Brinell

23.0 °C

270 [-]

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max.

Reduction of area

23.0 °C

45 %

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min.

Tensile strength

23.0 °C

750 MPa

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min.

Yield strength Rp0.2

23.0 °C

550 MPa

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min.

Magnetic

PropertyTemperatureValue

Relative magnetic permeability

23.0 °C

33 [-]

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Chemical properties

PropertyValueComment

Carbon

0.03 %

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max.

Chromium

24 - 26 %

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Copper

0.5 - 1 %

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Iron

Balance

Manganese

1 %

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max.

Molybdenum

3 - 4 %

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Nickel

6 - 8 %

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Nitrogen

0.2 - 0.3 %

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Phosphorus

0.03 %

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max.

Silicon

0.01 %

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max.

Sulfur

0.01 %

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max.

Tungsten

0.5 - 1 %

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Technological properties

Property
Application areas

Providing higher strengths than both austenitic and 22% Cr Duplex Stainless Steels UNS S32760 (F55) is suited to a variety of applications in industries such as Oil & Gas, CPI(Chemical Processing Industries), and Marine environments.

Corrosion properties

Super Duplex S32760/ F55 , Super Duplex Alloy UNS S32760 (F55 / 1.4501) has excellent resistance Pitting and Crevice Corrosion in seawater at elevated temperatures, supplied with a PREN 40<( Pitting Resistance Eqv) . Excellent resistance to SCC ( Stress Corrosion Cracking) in Sour and Chloride environments

Other

The material comes with a 3.1 certification. 3.2 certification are available with surcharge.