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ATI Allegheny Ludlum Relay Steels No. 5

Category 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 Relay Steels No. 5.pdf
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Material Notes:
Silicon and iron alloyApplications:relays, armatures, solenoids, magnetic clutches, pole pieces, certain types of motors, transformers, data processing equipment.Information provided by Allegheny Ludlum
Physical Properties Metric English Comments
Specific Gravity 7.65 g/cc
7.65 g/cc
Assumed for magnetic purposes per ASTM test specifications
Density 7.64 g/cc
0.276 lb/in³
Mechanical Properties Metric English Comments
Hardness, Rockwell B 75 - 90
75 - 90
Tensile Strength, Ultimate 530.9 MPa
77000 psi
Tensile Strength, Yield 441.2 MPa

@Strain 0.200 %
63990 psi

@Strain 0.200 %
Elongation at Break 25 %
25 %
in 2"
Component Elements Properties Metric English Comments
Aluminum, Al 0.40 %
0.40 %
Silicon, Si 2.25 %
2.25 %
Electrical Properties Metric English Comments
Electrical Resistivity 0.0000400 ohm-cm
0.0000400 ohm-cm
Magnetic Coercive Force, Hc 0.17 Oe
0.17 Oe
1850°F, 4 hours, Dry Hydrogen
Magnetic Saturation Flux Density, Bmax 20300 Gauss
20300 Gauss
Saturation Induction
Magnetic Remanence, Br 8400 Gauss
8400 Gauss
1850°F, 4 hours, Dry Hydrogen
Curie Temperature 740 °C
1360 °F
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