HPM® X-750 is a precipitation –hardenable nickelchromium alloy which is well suited for a wide range of corrosive and oxidizing environments where strength
must be maintained to elevated temperatures. The alloy composition provides a product which performs well at elevated temperatures up to 1300° Farenheit. The
strength can be increased by heat treatment.
The alloy is readily formable in the annealed temper and can be joined by the standard welding and brazing
processes.
Available Sizes:
HPM® X-750 is available from Hamilton Precision Metals as strip product in thicknesses from 0.001” to 0.025” (0.0254 mm to 0.635 mm) in widths up to 12.0” (304.8 mm). The material conforms to AMS 5542, AMS 5598 and UNS N07750.
Nominal Composition
| HPM® X - 750 NOMINAL COMPOSITION |
| Chromium |
16.0%
|
| Nickel |
72%
|
| Iron |
7.0%
|
| Titanium |
2.5%
|
Niobium &
Tantalum |
1.0%
|
Mechanical Properties
| HPM® X - 750 MECHANICAL PROPERTIES |
|
ANNEALED |
COLD ROLLED |
| Ultimate Tensile Strength |
110,000 PSI |
185,000 PSI |
| Yield Strength (0.2% Offset) |
50,000 PSI |
125,000 PSI |
| Elongation in 2” * |
40%
|
10%
|
| Modulus of Elasticity (Tension) |
31 X 10-6
PSI
|
- |
*The measured elongation will be less as thickness decreases to 0.002” and less.
These values may be adjusted by control of process variables – consult HPM for desired values.
Physical Properties
| HPM® X - 750 PHYSICAL PROPERTIES |
| Density |
0.298 lbs/cu.in. |
| Melting Point (Approx.) |
1400°C |
| Electrical Resistivity @ R.T |
121 Microhm·cm |
|
Thermal Expansion Coefficient (20° to 100°C)
|
12.6 x 10–6/°C
|
| Thermal Conductivity @ R.T |
12.0 W/m·K
|
Magnetic Attraction
Curie Temperature |
-125°C |
| Magnetic Permeability |
1.002 |
| Magnetic Attraction |
None |
Typical values to guide alloy selection but are not a guarantee of minimum or maximum.