Superalloy Series
0102030405
CHEMICAL COMPOSITION
ERAUM |
% |
C |
Si |
Mn |
P |
S |
Cr |
Ni |
Mo |
Cu |
Al |
Ti |
Fe |
Co |
B |
Zr |
GH4738 |
MIN |
0.03 |
- |
- |
- |
- |
18.0 |
balance |
3.5 |
- |
1.20 |
2.75 |
- |
12.0 |
0.003 |
0.02 |
MAX |
0.10 |
0.15 |
0.10 |
0.015 |
0.015 |
21.0 |
balance |
5.0 |
0.10 |
1.60 |
3.25 |
2.00 |
15.0 |
0.01 |
0.08 |
Physical Properties
density |
Melting temperature range |
ρ=8.22g/cm |
1330-1360℃ |
EXECUTIVE STANDARD
Standard No. & Variety |
sample state |
Plate thickness 8/mm |
Tensile properties |
730°C Durability |
Room temperature hardness |
|||||
θ/℃ |
Tensile strength |
yield strength |
A5% |
σ/MPa |
Time/h |
A% |
||||
QJ/DT01.63026 |
Supply state |
≤0.50 |
20 |
≥1170 |
≥760 |
≥15 |
|
- |
L |
(34 to 44) HRC or equivalent |
540 |
≥1000 |
≥690 |
≥13 |
|
- |
|
|
|||
>0.50 |
20 |
≥1205 |
≥795 |
≥20 |
- |
|
- |
(34 to 44) HRC or equivalent |
||
540 |
≥1035 |
≥725 |
≥15 |
|
|
- |
|
|||
>0.40～0.50 |
|
|
|
|
430 |
≥23 |
≥4 |
|
||
>0.50 |
|
|
|
|
430 |
≥23 |
≥4 |
|||
Product FEATURE
GH738 is a nickel-based high-temperature alloy hardened by γ' phase precipitation, with good gas corrosion resistance, high yield strength and fatigue properties, good process plasticity and stable organization. Widely used in aircraft engine rotating parts, the use of temperature is not higher than 815 ℃. It can produce cold rolled and hot rolled plates, pipes, strips, wires, forgings, castings and fasteners.
Product application
Aircraft engines, machine gas turbines, turbine blades and turbine disks and other rotating parts.
