Alloy 625 – High Strength Machinable Nickel Alloy

Alloy 625 is a highly machinable, corrosion resistant alloy used in oil & gas, marine and aerospace components.

Alloy 625

Alloy 625 Specifications and Stock

We stock and supply round bar to the following specifications:

  • ASTM B446-03 Grade 1
  • UNS N06625 GRADE 1 / DIN 2.4856
  • AMS 5666 REV F
  • BS3076 1989 NA21
  • NACE MR0175 (ISO 15156-3, latest version)

We can convert to ASTM B446-03 Grade 2 – please enquire.

Our size range is as follows:

Dimensions in milimetres (mm)
6mm 10mm 12mm 12.7mm 15.87mm
15.87mm 19.05mm 20mm 25.4mm 28.575mm
31.75mm 34.925mm 38.1mm 40mm 44mm
44.45mm 50.8mm 53.975mm 57.15mm 63.5mm
69.85mm 75.2mm 88.9mm 94mm 101.6mm

Larger sizes are stocked for specific customers – please enquire.

We can also supply rings and bored bar – please contact us with your requirements.

Broder Metals provide Alloy 625 with our global same day quote / next day despatch service.  All of our metals are fully traceable for your confidence, with clear certification delivered electronically or sent with the material as requested.  For further information contact us or download our  information sheet here.


Alloy 625 is used within the aerospace, marine, nuclear and chemical processing markets for:

  • Pollution Control Equipment
  • Jet Engine Parts
  • Heat Exchangers
  • Pressure Valves
  • Turbine shroud rings
  • Flare stacks
  • Seawater components
  • Chemical process equipment handling mixed acids both oxidizing and reducing.

For our complete stock make an enquiry or download our product brochure here.