Nickel Alloys
Alloy 825

Datasheet Updated

05 August 2021

Specifications

Commercial

Alloy 825

High performance nickel-iron-chromium alloy with excellent corrosion resistance.

Chemical Composition

Alloy 800

Element % Present

Carbon (C)

0.00 - 0.05

Chromium (Cr)

19.00 - 23.00

Manganese (Mn)

0.00 - 1.00

Silicon (Si)

0.00 - 0.50

Sulphur (S)

0.00 - 0.03

Nickel (Ni)

38.00 - 46.00

Copper (Cu)

1.50 - 3.00

Hydrogen (H)

0.00 - 22.00

Molybdenum (Mo)

2.50 - 3.50

Iron (Fe)

Balance

Alloy Designations

  • BS 3076 NA16
  • 2.4858
  • ASTM B425
  • UNS N08825

Supplied Forms

  • Bar
  • Forgings
  • Pipe
  • Tube
  • Sheet
  • Rod
  • Plate

Applications

  • Chemical processing: Phosphoric acid evaporators, pickling-tank heaters, pickling hooks and equipment, and chemical process equipment
  • Power generation: Components for spent nuclear fuel element recovery
  • Tank trucks
  • Propeller shafts

Characteristics

  • Excellent corrosion resistance in a range of media
  • High resistance to oxidation
  • Good ductility and workability
  • Resistant to chloride-ion stress corrosion cracking
  • Good mechanical properties from cryogenic to moderatley high temperatures
  • Approval for pressure vessels with operating temperatures up to 425 ° C

Mechanical Properties

Typical

Property Value

Elongation A50 mm

30 %

Tensile Strength

517 N/mm2

0.2% Proof Stress

207 N/mm2

Proof Stress

241 MPa

Tensile Strength

586 MPa

Disclaimer

This Data is indicative only and as such is not to be relied upon in place of the full specification. In particular, mechanical property requirements vary widely with temper, product and product dimensions. All information is based on our present knowledge and is given in good faith. No liability will be accepted by the Company in respect of any action taken by any third party in reliance thereon. Please note that the 'Datasheet Update' date shown above is no guarantee of accuracy or whether the datasheet is up to date.

The information provided in this datasheet has been drawn from various recognised sources, including EN Standards, recognised industry references (printed S online) and manufacturers' data. No guarantee is given that the information is from the latest issue of those sources or about the accuracy of those sources. Material supplied by the Company may vary significantly from this data but will conform to all relevant and applicable standards. As the products detailed may be used for a wide variety of purposes and as the Company has no control over their use; the Company specifically excludes all conditions or warranties expressed or implied by statute or otherwise as to dimensions, properties and/or fitness for any particular purpose, whether expressed or implied. Advice given by the Company to any third party is given for that party's assistance only and without liability on the part of the Company. All transactions are subject to the Company's current Conditions of Sale. The extent of the Company's liabilities to any customer is clearly set out in those Conditions; a copy of which is available on request.