GH1040(GH40)
1.Composition(wt%)
| C |
Cr
|
Ni
|
Mo
|
Fe
|
Si
|
Mn
|
P
|
S
|
Cu
|
N
|
|
≤0.12
|
15.0-17.5
|
24.0-27.0
|
5.5-7.0
|
balance
|
0.5-1.0
|
1.0-2.0
|
≤0.03
|
≤0.02
|
≤0.2
|
0.1-0.2
|
2.Physical Properties
Density
(g/cm3 ) |
Melting point
(℃)
|
Thermal conductivity
(λ/(W(m·℃) )
|
|
8.08
|
13.4
|
97
|
3.Properties
1.Mechanical properties
|
Condition
|
Temperature
(℃)
|
Tensile strength
(MPa)
|
Yield strength
(MPa)
|
Elongation
(%)
|
Percentage reduction of area(Ψ/%)
|
|
Annealing+Strain Ageing
|
20
|
882-931
|
597.8
|
20
|
26
|
|
300
|
735
|
441
|
18
|
31
|
|
400
|
715.4
|
431
|
21
|
41
|
|
500
|
695.8
|
431
|
21
|
43
|
|
600
|
637
|
421
|
20
|
41
|
|
700
|
499.8
|
372
|
13
|
26
|
|
800
|
343
|
225
|
10
|
25
|
2..Endurance and creep properties
| Condition |
Temperature
(℃)
|
Endurance properties
|
Creep properties
|
|
б100
|
б200
|
б300
|
б0.2/100
N/mm2
|
|
N/mm2
|
Residual deformation
|
Total deformation
|
|
Annealing+Strain Ageing
|
600
|
392
|
382.2
|
372.4
|
338
|
235
|
|
650
|
313.6
|
294
|
-
|
-
|
-
|
|
700
|
225.4
|
196
|
-
|
161.7
|
142
|
|
750
|
147
|
-
|
-
|
-
|
-
|
|
800
|
98
|
-
|
-
|
-
|
-
|
4.Characteristics
Oxidation resistance
|
Temperature
(℃)
|
Soaking time
(h)
|
Weight gains
( /g/(m2·h))
|
|
650
700
750
800
|
100
100
100
100
|
0.001
0.003
0.013
0.06
|
5.Structure
Alloy is heat resistant alloy, strengthened and stabilized the austenite by Cr, Mn, Mo, N. Solid solution state, the matrix , austenite.
6.Applications
Used for the turbine disc until 700 ℃, shaft, fasteners, wire materials and short-time working for engine parts of the arrow. |
