Aperam Superimphy® 625 Heat and Corrosion Resistant Nickel Alloy

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Aperam Superimphy® 625 Heat and Corrosion Resistant Nickel Alloy
Categories:	Metal; Nonferrous Metal; Nickel Alloy
Material Notes:	Superimphy 625 is nickel-based austenitic alloy containing chromium and molybdenum. The content of the latter elements provides Superimphy 625 with excellent corrosion-resistance in aqueous, acid and chloride environments as well as resistance to crevice corrosion. It is not susceptible to stress corrosion cracking. It also offers excellent resistance to high-temperature oxidation. Furthermore, depending on its metallurgical condition. Supermphy 625 has good creep-and fatigue-resistance. Sumperimphy 625 has outstanding mechanical and hardness properties from cryogenic temperatures through to 1100°C. Information provided by Aperam
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Physical Properties	Original Value	Comments

Density	8.44 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Vickers	117 - 198 @Temperature 1090 - 1200 °C	Annealed
	146 - 247 @Temperature 930 - 1050 °C	Annealed
Elongation at Break	>= 40 % @Temperature 600 °C	Annealed, 50 mm @ 930-1050°C
	>= 50 % @Temperature 200 °C	Annealed, 50 mm @ 930-1050°C
	>= 56 % @Temperature 100 °C	Annealed, 50 mm @ 1090-1200°C
	>= 65 % @Temperature 600 °C	Annealed, 50 mm @ 1090-1200°C
	>= 85 % @Temperature 800 °C	Annealed, 50 mm @ 930-1050°C
	>= 97 % @Temperature 800 °C	Annealed, 50 mm @ 1090-1200°C
	>= 115 % @Temperature 1000 °C	Annealed, 50 mm @ 930-1050°C
	>= 117 % @Temperature 1000 °C	Annealed, 50 mm @ 1090-1200°C
	>= 30 % @Treatment Temp. 1050 °C, Time 3.35e+6 sec	Annealed, 50 mm
	>= 40 % @Treatment Temp. 1200 °C, Time 3.92e+6 sec	Annealed, 50 mm
Creep Strength	20.0 MPa @Temperature 29.0 °C
	50.0 MPa @Temperature 27.0 °C
	200 MPa @Temperature 23.0 °C
	600 MPa @Temperature 19.0 °C
Tensile Modulus	202600 MPa @Temperature 930 - 1050 °C	Young's, Annealed
	202600 MPa @Temperature 1090 - 1200 °C	Young's, Annealed

Electrical Properties	Original Value	Comments
Volume Resistivity	0.000129 ohm-cm @Temperature 20.0 °C
	0.000134 ohm-cm @Temperature 200 °C
	0.000134 ohm-cm @Temperature 1100 °C
	0.000135 ohm-cm @Temperature 1000 °C
	0.000136 ohm-cm @Temperature 850 °C
	0.000136 ohm-cm @Temperature 400 °C
	0.000138 ohm-cm @Temperature 650 °C

Thermal Properties	Original Value	Comments
CTE, linear	0.600 µm/m-°C @Temperature -250 °C
	8.30 µm/m-°C @Temperature -150 °C
	11.6 µm/m-°C @Temperature -50.0 °C
	12.6 µm/m-°C @Temperature 0.000 °C
	12.8 µm/m-°C @Temperature 0.000 - 100 °C
	13.1 µm/m-°C @Temperature 200 °C
	13.6 µm/m-°C @Temperature 400 °C
	14.6 µm/m-°C @Temperature 650 °C
	15.7 µm/m-°C @Temperature 850 °C
	16.3 µm/m-°C @Temperature 950 °C
Specific Heat Capacity	0.410 J/g-°C @Temperature 20.0 °C
	0.455 J/g-°C @Temperature 200 °C
	0.510 J/g-°C @Temperature 400 °C
	0.565 J/g-°C @Temperature 650 °C
	0.618 J/g-°C @Temperature 850 °C
	0.630 J/g-°C @Temperature 1000 °C
	0.670 J/g-°C @Temperature 1100 °C
Thermal Conductivity	7.20 W/m-K @Temperature -150 °C
	9.80 W/m-K @Temperature 20.0 °C
	12.5 W/m-K @Temperature 200 °C
	15.7 W/m-K @Temperature 400 °C
	19.0 W/m-K @Temperature 650 °C
	22.8 W/m-K @Temperature 850 °C
	25.2 W/m-K @Temperature 1000 °C
Melting Point	1290 - 1350 °C

Component Elements Properties	Original Value	Comments
Aluminum, Al	>= 0.20 %
Chromium, Cr	21 %
Iron, Fe	<= 5.0 %
Molybdenum, Mo	9.0 %
Neodymium, Nd	3.5 %
Nickel, Ni	61 %
Titanium, Ti	0.30 %

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NPERA036 / 194825

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