Inconel 738LC
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Details
Lork Group's high-quality Inconel 738LC (UNS R30783) is a precipitation-hardenable nickel-base alloy with superior corrosion resistance and high-temperature creep-rupture strength.
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Products Description
Lork Group's high-quality Inconel 738LC (UNS R30783) is a precipitation-hardenable nickel-base alloy with superior corrosion resistance and high-temperature creep-rupture strength.
The new alloy is of considerable interest to aircraft gas turbine engine designers and materials engineers for containment and clearance control components such as rings, casings, shrouds and seals for compressors, turbines and exhaust systems. The three-phase age-hardenable alloy offers a range of improvements for these applications over alternative alloys in current use: A coefficient of thermal expansion approximately 20% lower than that of INCONEL alloy 718.
Product Form
Cast Billet
Round Bar
Inconel 738LC Chemical Composition
|
Composition |
Content(%) |
|
|
Min |
Max |
|
|
C |
0.09 |
0.13 |
|
Mn |
- |
0.2 |
|
Si |
- |
0.3 |
|
W |
2.4 |
2.8 |
|
S |
- |
0.015 |
|
P |
- |
0.015 |
|
Cr |
15.7 |
16.3 |
|
Mo |
1.5 |
2.0 |
|
AI+Ti |
6.5 |
7.2 |
|
Cb |
0.6 |
1.1 |
|
Ti |
3.2 |
3.7 |
|
AI |
3.2 |
3.7 |
|
B |
0.007 |
0.012 |
|
Zr |
0.03 |
0.08 |
|
Co |
8.0 |
9.0 |
|
Ta |
1.4 |
2.0 |
|
Fe |
- |
0.35 |
|
Ni |
Bal. |
|
Inconel 738LC Property
|
Precipitation Hardening |
|||
|
Solution Annealing |
Temperature |
Holding time |
Remarks |
|
1120 ℃ |
2 hours |
25-40 ℃/min to below 800 ℃ |
|
|
Aging |
Temperature |
Holding time |
Remarks |
|
845℃ |
24 hours |
Air cool |
|
Inconel 738LC Tensile Property
|
Temperature(℃) |
Yield, N/mm2 min |
UTS, N/mm2min |
Elongation minA5 (%) |
Reduction of Area, min (%) |
|
25 |
792 |
895 |
4 |
5 |
|
650 |
690 |
895 |
4 |
5 |
Inconel 738LC Creep Rupture Properties
|
Temperature(℃) |
Stress N/mm2 |
Life (Hours) |
Elongation A4 (%) |
Reduction of Area (Z) |
|
982 |
152 |
≥ 30 |
≥ 5 |
≥ 10 |
Inconel 738LC Application
- Aviation
- Erospace
- Petroleum
- Chemical
- Shipbuilding industry.
- Manufactures the hottest end parts of aviation jet engines and various industrial gas turbines.