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Nickel Super Alloy 825 (Wst 2.4858)

Technical Data Sheet

Alloy 825 is a nickel-iron-chromium alloy with additions of molybdenum and copper. It has excellent resistance to both reducing and oxidizing acids, to stress-corrosion cracking, and to localise attack such as pitting and crevice corrosion. The alloy are especially resistant to sulphuric and phosphoric acid. Used for chemical processing, pollution control equipment, oil and gas well piping, nuclear fuel reprocessing, acid production and pickling equipment.

Chemical Composition Limits
Weight %	Ni	Fe	Cr	Mo	Cu	Ti	C	Mn	S	Si	Al
Alloy 825	38 - 46	22 min	19.5 - 23.5	2.5 - 3.5	1.5 - 3	0.6 - 1.2	0.05 max	1 max	0.03 max	0.5 max	0.2 max

Typical Mechanical Properties

Material	Form and Condition	Tensile Strength MPa	Yield Strength (0.2% Offset) MPa	Elongation (%)
Alloy 825 Tube	Annealed	772	441	36
Alloy 825 Tube	Cold Drawn	1000	889	15
Alloy 825 Bar	Annealed	690	324	45
Alloy 825 Plate	Annealed	662	338	45
Alloy 825 Sheet	Annealed	758	421	39

BACK TO MAIN NICKEL ALLOY 825 DATA PAGE

Availability
Alloy 825 is available in Instrument tube, Precision tube and Hydraulic tube. Alloy 825 can also be supplied in Coiled Tube with a seamless and welded execution. Contact Sales for further availability.

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Disclaimer
Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.