INCOLOY alloy 825
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 localized attack such as pitting and
crevice corrosion. The alloy is especially resistant to sulfuric and
phosphoric acids. Used for chemical processing, pollution-control
equipment, oil and gas well piping, nuclear fuel reprocessing, acid
production, and pickling equipment.
UNS: N08825
W.Nr.: 2.4858
Technical Bulletin
Available Product Forms: Pipe, tube, sheet, strip, plate, round bar, flat
bar, forging stock, hexagon and wire
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INCOLOY alloys
INCOLOY alloy 800
INCOLOY alloy 800H/800HT
INCOLOY alloy 803
INCOLOY alloy 825
INCOLOY alloy 832
INCOLOY alloy 864
INCOLOY alloy 890
INCOLOY alloy 903
INCOLOY alloy 907
INCOLOY alloy 908
INCOLOY alloy 909
INCOLOY alloy 925
INCOLOY alloy 945 - 945X
INCOLOY alloy MA956
INCOLOY alloy DS
INCOLOY alloy 020
INCOLOY alloy 028
INCOLOY alloy 330
INCOLOY alloy 25-6HN
INCOLOY alloy 25-6MO
INCOLOY alloy 27-7MO
INCOLOY alloy A-286
Note: This alloy can be specified to more restrictive compositions on a
specific order basis.
Chemical Composition % for Incoloy Alloy 825
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INCOLOY Alloy 825
Specifications
Rod, Bar, Wire and Forging Stock -
BS 3076NA16, ASTM B 425, ASTM B 564, ASME SB 425, ASME SB
564, ASME Code Case N-572, DIN 17752, DIN 17753, DIN 17754,
VdTÜV 432, ISO 9723, ISO 9724, ISO 9725
Plate, Sheet and Strip -
BS 3072NA16, BS 3073NA16, ASTM B 424, ASTM B 906, ASME SB
424, ASME SB 906, DIN 17750, VdTÜV 432, ISO 6208
Pipe and Tube -
BS 3074NA16, ASTM B 163, ASTM B 423, ASTM B 704, ASTM B 705,
ASTM B 751, ASTM B 775, ASTM B 829, ASME SB 163, ASME SB 423,
ASME SB 704, ASME SB 705, ASME SB 751, ASME SB 775, ASME SB
829, ASME Code Case 1936, DIN 17751, VdTÜV 432, ISO 6207
Others -
ASTM B 366, ASME SB 366, DIN 17744
UNS Designation
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N08825
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Incoloy Alloy
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825
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Nickel
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38.0 - 46.0
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Chromium
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19.5 - 23.5
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Iron
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22 min
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Molybdenum
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2.5 - 3.5.
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Copper
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1.5 - 3.0
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Titanium
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0.6 -1.2
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Carbon
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0.05 max.
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Manganese
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1.0 max.
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Sulfur
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0.03 max.
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Silicon
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0.5 max.
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Aluminum
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0.2 max
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