• Incoloy Washers

Incoloy Washers

Not to be confused with Inconel, Incoloy washers are made of a nickel alloy which contains iron and a lower content of nickel. Incoloy is essentially a more economical option to Inconel, yet with more restricted corrosion resistance and temperature limits. Typically, Incoloy is an ideal material for long-term exposure in high temperature environments due to its oxidation, carburization and creep resistance. Incoloy is widely used for its resistance to seawater, brine, sour gas and high chloride environments at elevated temperatures, which make it a popular choice in the oil and gas and power industries.

Incoloy Washers

Incoloy Washer

A Ni-Cr alloy with very good high temperature stability

· Good high temperature strength

· Oxidization and carburization resistant at high temperatures

· Good corrosion resistance, which increases with the various grades

· Learn more by downloading an Incoloy datasheet


The most commonly used grades of Incoloy washers are Incoloy 800, 800H, 800HT; Incoloy 825; and Incoloy 925. For more indepth information on these specific grades, visit our specific web pages or contact one of our engineering experts:

· Incoloy 800, 800H, 800HT

· Incoloy 825

· Incoloy 925

DatasheetsIncoloy 800, 800H 800HTIncoloy 825; and Incoloy 925

ResourcesIncoloy Torque SpecsFlange DimensionsFlange Bolting Chart

Incoloy Fastener TypesBoltsNutsScrewsThreaded Rods

Flange Types AvailableBlind FlangesLap Joint FlangesSlip On FlangesSocket Weld FlangesThreaded FlangesWeld Neck Flanges

 

Common Incoloy Chemistry, Grades & Specifications

Incoloy 800, 800H, H00HT

Incoloy 800 wahsers are best utilized for applications that require stable structure and good strength during prolonged exposure to high temperatures. 

Incoloy 800, 800H & 800HT Specifications: UNS N08800/ N08810 / N08811 (800, 800H, 800HT), ASTM B408, ASME SB408, ASTM B564/ASME SB564, EN 10204-3.1, Werkstoff 1.4876 (800), Werkstoff 1.4876 H and 1.4958 (800H), Werkstoff 1.4876 HT and 1.4959 (800HT)


Incoloy 800

Ni

Fe

Cr

C

AL

T1

AL-T1

Min%

30

39.5

19

-

0.15

0.15

0.3

Max %

35

-

23

0.1

0.6

0.6

1.2



Incoloy 800H

Min%

30

39.5

19

0.05

0.15

0.15

0.3

Max %

35


23

0.1

0.6

0.6

1.2


Incoloy 800H

Min%

30

39.5

19

0.06

0.25

0.25

0.85

Max %

35

-

23

0.1

0.6

0.6

1.2


Incoloy 825 (2.4858)

Related to the Incoloy 800 series alloys, Incoloy 825 (2.4858) differentiates itself with the additional elements of molybdenum and copper, which provides it improved corrosion resistance. 

Incoloy 825 Specifications: UNS N08825, 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, Werkstoff Nr 2.4858

Incoloy 825

Ni

Fe

Cr

Mo

Cu

Ti

C

Mn

S

Si

Al

Min %

38

22

19.5

2.5

1.5

0.6

-

-

-

-

-

Max %

46

-

2.35

3.5

3.0

1.2

0.05

1.0

0.03

0.5

0.2

Incoloy 925

Incoloy 925 is a precipitation hardened alloy. It offers comparable corrosion resistance to it’s sister alloy Incoloy 825, but with the increased strength resulting from the age hardening process. 

Incoloy 925 Specifications: UNS N09925, ASTM B637, NACE MR0175

Incoloy 925

Ni

Fe

Cr

Mo

Cu

Ti

C

Mn

S

Si

Al

Nb

Min %

42

22

19.5

2.5

1.5

1.9

-

-

-

-

0.1

-

Max %

46

-

22.5

3.5

3.0

2.4

0.03

1.0

0.03

0.5

0.5

0.5







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