ATI Allegheny Ludlum Relay Steels No. 2

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ATI Allegheny Ludlum Relay Steels No. 2
Categories:	Metal
Material Notes:	Silicon and iron alloy Applications:relays, armatures, solenoids, magnetic clutches, pole pieces, certain types of motors, transformers, data processing equipment. Information provided by Allegheny Ludlum
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Physical Properties	Original Value	Comments

Specific Gravity	7.75 g/cc	Assumed for magnetic purposes per ASTM test specifications
Density	7.723 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Rockwell B	65 - 80
Tensile Strength, Ultimate	455.1 MPa
Tensile Strength, Yield	330.9 MPa @Strain 0.2 %
Elongation at Break	31 %	in 2"

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.0000300 ohm-cm
Magnetic Coercive Force, H_c	0.44 Oe	1550°F, 4 hours, Wet Forming Gas
Magnetic Saturation Flux Density, B_max	20600 Gauss	Saturation Induction
Magnetic Remanence, B_r	10300 Gauss	1550°F, 4 hours, Wet Forming Gas
Curie Temperature	760 °C

Component Elements Properties	Original Value	Comments
Aluminum, Al	0.25 %
Silicon, Si	1.25 %

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