77HXД is a soft magnetic alloy consisting of 78% Nickel, 4.5% Molybdenum, and balance Iron used where extremely high initial & maximum permeability and minimum hysteresis is needed.

Description

A soft magnetic alloy consisting of 80% Nickel, 5% Molybdenum, and balance Iron used where extremely high initial & maximum permeability and minimum hysteresis is needed.

Application

Electro-magnetic shielding, specialty transformer laminations, toroidal tape wound cores, high quality motor laminations, stepping motors.

parameter

Chemical Composition (%)

C	P	S	Mn	Si	Ni	Mo	Cu	Fe
≤
0.03	0.02	0.02	0.3~0.6	0.15~0.3	75.0~78	3.9~4.5	4.80~6	Balance

Physical Property

Resisitivity(μΩ•m )		0.55
Density(g/cm3)		8.6
Curie Point ℃		350
Tensile Strength MPa	unannealed	980
	annealed	540
Elongation (%)δ	unannealed	2
	annealed	40

Magnetic Property

Grade	(δ&D)/mm	μ0.08/(mH/m)	μm/(mH/m)	Bs/T	Hc/(A/m)
		≥			≤
77HXД Cold Rolling Strip	0.02-0.04	18.8	75.0	0.75	4.8
	0.05-0.09	22.5	125.0	0.75	3.2
	0.10-0.19	25.0	175.0	0.75	2.8
	0.20-0.50	31.3	225.0	0.75	1.4