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Grade Alloy 1
USA UNS R30005
Corresponding Standard ASTM A801-2021
Standard Specification for Wrought Iron-Cobalt High Magnetic Saturation Alloys (UNS R30005 and K92650)
Classification Special Alloy Steel
Density 8.12 g/cm3
Alloy 1 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni V Co More
Minimum Value - - - - - - - 1.75 47.5 Fe:Remainder
Maximum Value 0.025 0.15 0.15 0.015 0.01 0.15 0.25 2.1 49.5
Alloy 1 Mechanical Properties
Condition Heat Treatment or Condition
Tensile Strength
σb
Mpa 		Specified Plastic Yield Strength
Rp0.2
Mpa 		Elongation or Extension Rate
δ
%
Cold-rolled strip Mill Condition 1340 1280 Gauge L0=50mm
1
Strip annealed at 845°C 480 240 4
Strip annealed at 750°C 590 360 5
Strip annealed at 715°C 717 550 5
Rod annealed at 845°C 480 - -

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