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ATI Allegheny Ludlum AL 4750™ Electrical Alloy, UNS K94800 or UNS K95000

Category Metal , Electronic/Magnetic Alloy , Ferrous Metal
Manufacturer ATI Allegheny Ludlum
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF ATI Allegheny Ludlum AL 4750™ Electrical Alloy, UNS K94800 or UNS K95000.pdf
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Material Notes:
The alloy produces good magnetic properties, wide latitude to control hysteresis loop shape via recrystallization modes. Applications for this grade range from electromechanical relay cores, to very low current holding magnets for natural gas safety valves, to manufacture of magnetic shielding used in multiple-wall shielding to produce high frequency transformer applications - notably in the past in telecommunication applications. AL 4750 alloy is sold in two grades, "Rotor" a fine grained, equalized structure with a cube on face texture for rotating equipment, and "Transformer" a large grained directional, secondarily recrystallized twinned structure ideal for transformers.Information provided by Allegheny Ludlum.
Physical Properties Metric English Comments
Density 8.17 g/cc
0.295 lb/in³
Mechanical Properties Metric English Comments
Hardness, Rockwell B 55
55
Tempered
Tensile Strength, Ultimate 503 MPa
73000 psi
Typical Annealed
Tensile Strength, Yield 206 MPa

@Strain 0.200 %
29900 psi

@Strain 0.200 %
Typical; Annealed
Elongation at Break 38 %
38 %
typical in 2"; Annealed
Thermal Properties Metric English Comments
CTE, linear 8.50 - 9.20 µm/m-°C

@Temperature 30.0 - 350 °C
4.72 - 5.11 µin/in-°F

@Temperature 86.0 - 662 °F
9.70 - 10.4 µm/m-°C

@Temperature 30.0 - 450 °C
5.39 - 5.78 µin/in-°F

@Temperature 86.0 - 842 °F
Component Elements Properties Metric English Comments
Carbon, C <= 0.010 %
<= 0.010 %
Chromium, Cr <= 0.10 %
<= 0.10 %
Cobalt, Co <= 0.50 %
<= 0.50 %
Copper, Cu <= 0.30 %
<= 0.30 %
Iron, Fe 50 - 52 %
50 - 52 %
as balance
Manganese, Mn 0.45 %
0.45 %
Molybdenum, Mo <= 0.30 %
<= 0.30 %
Nickel, Ni 48.25 %
48.25 %
Phosphorous, P <= 0.030 %
<= 0.030 %
Silicon, Si 0.30 %
0.30 %
Sulfur, S <= 0.010 %
<= 0.010 %
Electrical Properties Metric English Comments
Electrical Resistivity 0.0000500 ohm-cm
0.0000500 ohm-cm
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