ALLOY 1.4547 Plate

Alternative and trade names
ALLOY 1.4547, UNS S31254, 6MO, F44
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Description

The 6 Mo super austenitic steel combines moderate tensile strength and high ductility with excellent corrosion resistance in seawater and variety of industrial environment.

Related Standards

Equivalent Materials

This material data has been provided by Sverdrup Steel.

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.

Ashby charts

Properties

Dimension

PropertyValue

Length

2500 - 6000 mm

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Thickness

1 - 50 mm

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Width

1250 - 2000 mm

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Mechanical

PropertyValueTemperature

Charpy impact energy, V-notch

45 J

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-46.0 °C

Elongation

35 %

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23.0 °C

Hardness, Brinell

310 [-]

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23.0 °C

Tensile strength

655 - 850 MPa

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23.0 °C

Yield strength Rp0.2

310 MPa

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23.0 °C

Chemical properties

Property

Carbon

0.02 %

Chromium

19.5 - 20.5 %

Copper

0.5 - 1 %

Iron

Balance

Manganese

1 %

Molybdenum

6 - 6.5 %

Nickel

17.5 - 18.5 %

Nitrogen

0.18 - 0.22 %

Phosphorus

0.03 %

Silicon

0.8 %

Sulfur

0.01 %

Technological properties

Property
Application areas

High resistance to general corrosion. Typical applications: Pumps, valves, chokes, pipework/flanges and manifolds in Oil & Gas Industry.

Corrosion properties

Typically the alloy has PREN of 42-44, which ensure that the resistance to pitting corrosion is high. High resistance crevice corrosion.

Heat Treatment

Solution annealing at min 1150°C followed by water quenching

Welding

Very good