2J52

Other

Chinese precision-alloy designation system: 1J soft magnetic, 2J magnetic (hard magnetic / magnet alloys), 3J elastic alloys, 4J controlled-expansion/soft alloys, 5J bimetals, 6J resistance alloys. 2J52 is a magnetic (hard-magnetic / magnetostrictive) precision alloy (2J series).

Chemical Composition (%)

FE-NI43

Mechanical Properties

Hard magnetic: Br 0.8-1.4 T, Hc 10-240 kA/m, (BH)max 4-40 kJ/m3 depending grade

Chinese Standard

GB/T 15018-1994

Applications

Permanent magnets, magnetostrictive transducers, instruments, meters

Available Forms

Strip, wire, bar, sheet, rod, tube

Uses

Magnets for instruments, motors, magnetostrictive sonar/transducers

Heat Treatment

Per family: 1J soft magnetic annealed in H2; 2J magnet aged; 3J elastic solution+age; 4J expansion controlled anneal; 6J resistance annealed

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