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HPM® X-750 • UNS N07750

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.