6J40

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. 6J40 is a resistance precision alloy (6J series) for electrical resistance elements.

Chemical Composition (%)

NI-CR	38

Mechanical Properties

Resistivity 0.35-1.40 μΩ·m (grade dependent); low temperature coefficient of resistance

Chinese Standard

GB/T 15018-1994

Applications

Resistance elements, shunts, rheostats, precision resistors

Available Forms

Strip, wire, bar, sheet, rod, tube

Uses

Resistors, heating elements, instrument shunts

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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