Alloy 625

Alternative and trade names
Alloy 625
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Description

Alloy 625, a Nickel Alloy grade, combines nickel, chromium and molybdenum, giving high strength (from room temperature to 816°C), ease of fabrication, and excellent corrosion resistance. Alloy 625 is particularly useful in situations where oxidation resistance and avoidance of pitting is required. In the annealed condition, Alloy 625 is fully austenitic and is suitable for machining. Alloy 625 can be hot or cold worked (although as it does work harden, intermediate heat treatments are advisable), formed and welded. Broder Metals Group stock Alloy 625 in the annealed condition to provide good strength and hardness, and typical applications are where contact with sea water and other harsh chemical environments and high mechanical stresses apply. Different heat treatments are available: Annealed and Age hardened.

Related Standards

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

Dimension

PropertyValue

Length

6 - 101.6 mm

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Mechanical

PropertyTemperatureValueComment

Charpy impact energy, V-notch

-60.0 °C

42 J

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Average of 3 tests

Charpy impact energy, transverse

-60.0 °C

21 J

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Average of 3 tests and V notched

Elongation

23.0 °C

30 %

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Hardness, Brinell

23.0 °C

187 - 321 [-]

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Reduction of area

23.0 °C

35 %

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Tensile strength

23.0 °C

758 - 828 MPa

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For thickness up to 250mm

Yield strength Rp0.2

23.0 °C

414 MPa

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Chemical properties

PropertyValueComment

Aluminium

1 %

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Carbon

0.1 %

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Chromium

20 - 23 %

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Cobalt

1 %

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Iron

5 %

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Manganese

0.5 %

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Molybdenum

8 - 10 %

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Nickel

58 %

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Balance

Niobium

0.15 - 4.15 %

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Phosphorus

0.02 %

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Silicon

0.5 %

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Sulfur

0.015 %

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Titanium

0.4 %

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