NICKEL ALLOYS

Nickel based alloys are classified as having over 45% Nickel in their chemical composition. Dependent upon other elements present, various Nickel grades may be hardenable through an age hardening heat treat process, while others may only be strengthened through cold working. These Nickel alloys offer a combination of excellent corrosion resistance, strength, toughness and can be used at elevated temperatures in severe environments.

Chemical Composition of Common Grades

(Unless otherwise specified in the table, numerical value presents maximum)

Grade

C

Si

Mn

P

S

Cr

Ni

Mo

Al

Cu

Fe

Other

Nickel 200

(UNS N02200)

0.15   

0.35   

0.35

-

0.010   

-

Bal.

-

-

0.25   

0.40   

-

Monel 400

(UNS N04400)

0.30

0.50

2.00

-

0.024

-

Bal.

-

-

28.0-34.0

2.50

-

Monel k-500

(UNS N05500)

0.180   

0.50   

1.50   

-

0.010   

-

63.00   

-

3.150   

33.0   

Bal.

Ti   0.85

Incoloy 800

(UNS N08800)

0.10

1.00

1.50

-

0.024

19.0-23.0

30.0-35.0

-

0.15-0.60

0.75

Bal.

Ti 0.15-0.60

Incoloy 825

(UNS N08825)

0.05   

0.50   

1.00   

0.030   

0.030   

19.5-23.5

46.0   

2.5-3.5

0.20   

1.5-3.0

Bal.

Ti   0.60-1.20

Incoloy 925

(UNS N08925)

0.03

0.50

1.00

0.030

0.030

19.5-22.5

46.0

2.5-3.5

0.50

3.0

Bal.

Ti 2.4

Alloy 28

(UNS N08028)

0.030   

1.00   

2.50   

0.030   

0.030   

26.00-28.00

30.0-34.0

3.00-4.00

-

0.60-1.40

Bal.

-

Inconel 600

(UNS N06600)

0.15

0.50

1.00

-

0.024

14.0-17.0

Bal.

-

-

-

6.0-10.0

-

Inconel 625

(UNS N06625)

0.10   

0.50   

0.50   

0.015   

0.015   

20.0-23.0

58.0   

8.0-10.0

0.40   

-

5.0   

Ti   0.40; Nb 3.15-4.15

Inconel 690

(UNS N06690)

0.05

0.50

0.50

-

0.015

27.0-31.0

Bal.

-

-

0.50

7.0-11.0

-

Inconel 718

(UNS N07718)

0.045   

0.35   

0.35   

0.010   

0.010   

17.0-21.0

55.0   

2.8-3.3

0.60   

0.23   

Bal.

Nb   4.75-5.5; Co 1.0; Ti 0.70-1.15

Hastelloy C-276

(UNS N10276)

0.01

0.08

1.00

0.040

0.030

14.5-16.5

Bal.

15.0-17.0

-

-

4.0-7.0

Ti 0.35; Co 2.5; W 3.0-4.5

Hastelloy G-3

(UNS N06985)

0.015   

1.00   

1.00   

0.040   

0.030   

21.0-23.5

Bal.

6.0-8.0

-

1.5-2.5

18.0-21.0

W   1.5; Co 5.0; Nb+Ta 0.5

Hastelloy G-3

(UNS N06985)

0.015

1.00

1.00

0.040

0.030

21.0-23.5

Bal.

6.0-8.0

-

1.5-2.5

18.0-21.0

W 1.5; Co 5.0; Nb+Ta 0.5

Mechanical Properties of Commonly Strength Levels:

Grade

Yield Strength (min)   
    Rp0.2 Mpa

Tensile Strength (min)
    Rm Mpa

Elongation (min)   
    A%

Hardness (max.)
    HRC

Nickel 200 (UNS N02200)

103 (15 ksi)

379 (55 ksi)

40

-

Monel 400 (UNS   N04400)

193 (28 ksi)

483 (70 ksi)

35

-

Monel k-500 (UNS N05500)

655 (95 ksi)

931 (135 ksi)

20

35

Incoloy 800 (UNS   N08800)

207 (30 ksi)

517 (75 ksi)

30

-

Incoloy 825 (UNS N08825)

241 (35 ksi)

586 (85 ksi)

30

35

Incoloy 925 (UNS   N08925)

758 (110 ksi)

965 (140 ksi)

20

38

Alloy 28 (UNS N08028)

214 (31 ksi)

500 (72 ksi)

40

-

Inconel 600 (UNS   N06600)

241 (35 ksi)

552 (80 ksi)

30

-

Inconel 625 (UNS N06625)

414 (60 ksi)

827 (120 ksi)

20

35

Inconel 690 (UNS   N06690)

241 (35 ksi)

586 (85 ksi)

30

-

Inconel 718 (UNS N07718)

862-1000 (125-145 ksi)

1034 (150 ksi)

20

40

Hastelloy C-276   (UNS N10276)

283 (33 ksi)

690 (100 ksi)

40

-

Hastelloy G-3 (UNS N06985)

241 (35 ksi)

621 (90 ksi)

40

-