F51

Alternative and trade names
UNS S31803 F51
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Description

F51 combines improved resistance to stress corrosion cracking, pitting, crevice corrosion and high strength when compared with other stainless alloys.

Equivalent Materials

This material data has been provided by Broder Metals Group.

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

Mechanical

PropertyTemperatureValue

Elongation

23.0 °C

25 %

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Hardness, Brinell

23.0 °C

270 [-]

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Reduction of area

23.0 °C

45 %

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Tensile strength

23.0 °C

655 - 880 MPa

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Yield strength Rp0.2

23.0 °C

485 MPa

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Charpy impact energy, V-notch

45;-46,100;25

Chemical properties

PropertyValue

Carbon

0.03 %

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Chromium

21 - 23 %

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Iron

Balance

Manganese

2 %

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Molybdenum

2.5 - 3.5 %

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Nickel

4.5 - 6.5 %

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Nitrogen

0.1 - 0.22 %

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Phosphorus

0.04 %

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Silicon

1 %

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Sulfur

0.03 %

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Technological properties

Property
Application areas

Typical applications in the power generation and oil & gas industry include pumps, valves, pipework, flanges, bolting, connectors & manifolds.

Corrosion properties

F51 resists chloride environments and sulphide stress corrosion. Corrossion Test to ASTM G48 Method A 25°C for 24 hours