HY 738LC/ Inconel 738LC
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HY 738LC Material grades and equivalents
Inconel 738LC
Short Introduction:
HY 783LC is a precipitation hardenable nickel-base alloy with superior corrosion resistance and high temperature creep-rupture strength. HY 738 LC is used in gas turbine blades and other high-temperature industrial applications. HY Industry Co. manufactures HY 783LC in varying compositions and forms such as powder, plate, rod, wire, and sputtering target.
HY 738LC Chemical composition:
|
Element |
C |
Mn |
Si |
W |
S |
P |
Cr |
Mo |
Ai+Ti |
|
Min |
0.09 |
- |
- |
2.4 |
- |
- |
15.7 |
1.5 |
6.5 |
|
Max |
0.13 |
0.2 |
0.3 |
2.8 |
0.015 |
0.015 |
16.3 |
2.0 |
7.2 |
|
Element |
Cb |
Ti |
Ai |
B |
Zr |
Co |
Ta |
Fe |
Ni |
|
Min |
0.6 |
3.2 |
3.2 |
0.007 |
0.03 |
8.0 |
1.4 |
- |
Balance |
|
Max |
1.1 |
3.7 |
3.7 |
0.012 |
0.08 |
9.0 |
2.0 |
0.35 |
Heat Treatment Procedure
| Precipitation Hardening | |||
| Solution Annealing | Temperature | Holding time | Remarks |
| 1120 oC | 2 hours | 25-40 oC ⁄ min to below 800 oC | |
| Aging | Temperature | Holding time | Remarks |
| 845 oC | 24 hours | Air cool | |
Physical properties:
Tensile :
| Temperature(℃) | Yield, N/mm2min | UTS, N/mm2min | Elongation, minA5 (%) | Reduction ofArea, min (%) |
| 25 |
792 |
895 | 4 | 5 |
| 650 |
690 |
895 | 4 | 5 |
Creep Rupture Properties:
| Temperature (℃) | Stress (N/mm2) | Life (Hours) | Elongation (A4) (%) | Reduction of Area (Z)(%) |
| 982 | 152 | ≥ 30 | ≥ 5 | ≥ 10 |
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