1J75, 1J77C, 1J79C, 1J85C, 1J87C, 1J92, 1J93, 1J94, 1J95

*Specification YB/T-086-1996 *Product Forms Tape, Sheet *Chemical Composition, % Alloy C P S Si Mn Ni Mo Nb Cu W Cr Fe 1J75 ≤0.03 ≤0.02 ≤0.02 ≤0.30 0.5-1.0 74-76 1.5-2.0 - 5.0-7.0 1.0-1.5 - Rest 1J77C ≤0.03 ≤0.02 ≤0.02 ≤0.30 ≤0.7 76.5-78.0 3.5-4.5 - 3.8-5.3 - - Rest 1J79C ≤0.03 ≤0.02 ≤0.02 ≤0.30 0.7-1.2 78.0-81.5 3.7-4.5 - - - - Rest 1J85C ≤0.03 ≤0.02 ≤0.02 0.3-0.6 0.3-0.7 80.0-81.5 5.0-6.0 - - - - Rest 1J87C ≤0.03 ≤0.02 ≤0.02 0.15-0.30 0.3-0.6 80.0-81.5 1.0-2.0 4.0-5.5 - - - Rest 1J92 ≤0.03 ≤0.02 ≤0.02 ≤0.30 ≤0.6 80.1-81.5 1.0-1.5 3.0-4.0 - 1.0-1.5 - Rest 1J93 ≤0.03 ≤0.02 ≤0.02 ≤0.30 0.3-0.6 80.5-81.5 3.0-4.0 3.0-4.5 - - - Rest 1J94 ≤0.03 ≤0.02 ≤0.02 ≤0.30 0.3-0.6 79.5-81.0 4.5-5.0 0.6-1.0 1.5-2.5 - 0.3-0.7 Rest 1J95 ≤0.03 ≤0.02 ≤0.02 2.8-3.3 - 83-84 1.2-1.6 0.4-0.6 - - - Rest *DC Magnetic Properties Alloy Permeability at a magnetic field intensity of 0.4 A/m, μ0.4/mH˙m-1 Maximum permeability μm/mH˙m-1 Saturation magnetic induction Bs/T Coercive force (under saturation magnetic induction) Hc/A˙m-1 1J75 ≥30000(37.5) ≥150000(187.5) ≥0.70 ≤1.6 1J77C ≥30000(37.5) ≥100000(125) ≥0.67 ≤2.0 1J79C ≥30000(37.5) ≥100000(125) ≥0.75 ≤1.6 1J85C ≥30000(37.5) ≥100000(125) ≥0.68 ≤1.6 1J87C ≥35000(43.75) ≥150000(187.5) ≥0.64 ≤1.5 1J92 ≥35000(43.75) ≥150000(187.5) ≥0.70 ≤1.5 1J93 ≥35000(43.75) ≥100000(125) ≥0.60 ≤2.0 1J94 ≥40000(50) ≥100000(125) ≥0.60 ≤1.6 1J95 ≥40000(50) ≥100000(125) ≥0.55 ≤1.6 *Ac Magnetic Properties Alloy Thickness, mm Permeability at different frequencies measured at the peak value of magnetic field intensity of 0.8 A/m, μm/mH˙m-1 0.3 kHz 1 kHz 10 kHz 100 kHz 1J75 0.094 ≥30000(37.5) ≥20000(25) ≥6000(7.5) ≥1200(1.5) 0.116 ≥25000(31.25) ≥18000(22.5) ≥5000(6.25) ≥1000(1.25) 0.146 ≥20000(25) ≥14000(17.5) ≥4000(5) ≥700(0.875) 0.196 ≥15000(18.75) ≥10000(12.5) ≥3000(3.75) ≥500(0.625) 1J79C 0.094 ≥30000(37.5) ≥15000(18.75) ≥5000(6.25) ≥1200(1.5) 0.116 ≥20000(25) ≥12000(15) ≥4000(5) ≥1000(1.25) 0.146 ≥12000(15) ≥10000(12.5) ≥3000(3.75) ≥700(0.875) 0.196 ≥10000(12.5) ≥8000(10) ≥2500(3.125) ≥500(0.625) 1J85C 0.094 ≥30000(37.5) ≥20000(25) ≥7000(8.75) ≥1500(1.875) 0.116 ≥25000(31.25) ≥18000(22.5) ≥6000(7.5) ≥1200(1.5) 0.146 ≥20000(25) ≥14000(17.5) ≥5000(6.25) ≥700(0.875) 0.196 ≥15000(18.75) ≥10000(12.5) ≥3000(3.75) ≥500(0.625) 0.32 ≥10000(12.5) ≥8000(10) ≥1500(1.875) ≥300(0.375) 1J87C 0.094 ≥35000(43.75) ≥25000(31.25) ≥7000(8.75) ≥1500(1.875) 0.116 ≥30000(37.5) ≥20000(25) ≥6000(7.5) ≥1200(1.5) 0.146 ≥25000(31.25) ≥15000(18.75) ≥5000(6.25) ≥800(1) 0.196 ≥15000(18.75) ≥10000(12.5) ≥3000(3.75) ≥600(0.75) 1J92 0.094 ≥30000(37.5) ≥25000(31.25) ≥6000(7.5) ≥1400(1.75) 0.116 ≥25000(31.25) ≥20000(25) ≥5500(6.875) ≥1200(1.5) 0.146 ≥20000(25) ≥15000(18.75) ≥4500(5.625) ≥800(1) 0.196 ≥15000(18.75) ≥10000(12.5) ≥3000(3.75) ≥600(0.75) 1J93 0.094 ≥40000(50) ≥25000(31.25) ≥8000(10) ≥1500(1.875) 0.116 ≥35000(43.75) ≥20000(25) ≥7000(8.75) ≥1200(1.5) 0.146 ≥30000(37.5) ≥15000(18.75) ≥5000(6.25) ≥1000(1.25) 0.196 ≥20000(25) ≥12000(15) ≥4000(5) ≥600(0.75) 1J94 0.118 - ≥25000(31.25) - ≥1400(1.75) 0.146 - ≥15000(18.75) - ≥1000(1.25) 0.196 - ≥10000(12.5) - ≥700(0.875) 1J95 0.116 - ≥20000(25) - ≥1300(1.625) 0.146 - ≥14000(17.5) - ≥700(0.875) 0.196 - ≥10000(12.5) - ≥500(0.625) *Feature At the frequency of 0.3-100kHz, it has high impedance permeability, good stability of magnetism to stress, temperature and time, high hardness, good wear resistance and corrosion resistance. Its machinability can meet the processing requirements of deep drawing, bending, grinding and welding. The strip has high dimensional accuracy, heavy roll and good appearance quality. *Application Head housing, chips and isolators for magnetic recording devices in computers, magnetic card machines, video recorders, tape recorders, digital coders, radio, television and film equipment.