|   | Shanghai Hite Special Alloy Co., Ltd. QUALITY AND SERVICE ARE THE THINGS MAKE US PROUD OF WHAT WE DO | Beijing Time, China | 
Brief introduction:
1J79's Nickel-Iron soft magnetic alloy with high initial magnetic permeability.
Used as transformers,mutual inductor, magnetic amplifiers, choke cores and magnetic shields operating in weak magnetic fields.
Chemical composition under GBn198-88 standard:
| Grade | chemical composition,% | ||||||||
| C | P | S | Cu | Mn | Si | Ni | Mo | Fe | |
| MAX | |||||||||
| 1J79 | 0.03 | 0.02 | 0.02 | 0.2 | 0.6~1.1 | 0.3~0.5 | 78.5~80 | 3.8~4.1 | Remainder | 
Remarks:If require adjustments for some chemical compositions, pls consult with us.
Physical and mechanical properties under GBn198-88 standard:
| Grade | Resisitivity | Density | Curie Point | High Saturated magneto-striction coefficient | Brinell hardness | |
| (μΩ•m) | (g/cm3) | ℃ | λθ/10-6 | HBS | ||
| cold-drawn&hard | soft | |||||
| 1J79 | 0.55 | 8.6 | 450 | 2 | 210 | 120 | 
| Tensile strength Rm N/mm2 | Yield strength Rp 0.2 N/mm2 | Elongation A % | ||||
| cold-drawn&hard | soft | cold-drawn&hard | soft | cold-drawn&hard | soft | |
| 1030 | 560 | 980 | 150 | 3 | 50 | |
Typical average linear expansion coefficient value α,10-6/℃
| Grade | 20℃~100℃ | 20℃~200℃ | 20℃~300℃ | 20℃~400℃ | 20℃~500℃ | 20℃~600℃ | 20℃~700℃ | 20℃~800℃ | 20℃~900℃ | 
| 1J79 | 10.3~10.8 | 10.9~11.2 | 11.3~12.9 | 11.9~12.5 | 12.3~13.2 | 12.7~13.4 | 13.1~13.6 | 13.4~13.6 | 13.2~13.8 | 
Main product types:
wire,rod, bar,strip, plate/sheet.
|  | 1J79 document: | 
| 1j79.pdf |