| Attribute | Value |
|---|---|
| Origin | China |
| Specification | Based on customers' request |
| Surface | Bright |
| Yield Strength | ≥450 MPA |
| Curie Temperature | 470°C |
| Manufacturing Processes | Casting, hot and cold working, annealing |
| Trademark | HUONA |
| Customized Service | Support |
| Chemical Composition | Fe, Cu, Ni |
1J87/1J88/1J89/1J90/1J91 alloy have high initial permeability, high hardness, high resistivity, and magnetic properties are not sensitive to stress, with good resistance to abrasion.
Main applications: Each kind of magnetic tape head of magnetic band device, chip as well as recorder, ferrite core of high frequency component.
| Brands | Chemical analysis (%) | Others | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| C | S | P | Mn | Si | Ni | Cr | Co | Mo | Cu | Al | Nb | Fe | ||
| 1J87 | ≤0.03 | ≤0.020 | ≤0.020 | 0.30~0.60 | ≤0.30 | 78.5~80.5 | 1.6~2.2 | 6.5~7.5 | ||||||
| 1J88 | ≤0.03 | ≤0.020 | ≤0.020 | ≤0.60 | ≤0.30 | 79.5~80.5 | 7.5~9.0 | |||||||
| 1J89 | ≤0.03 | ≤0.020 | ≤0.020 | 0.50~1.00 | ≤0.30 | 78.5~80.5 | 3.5~4.5 | 3.0~3.6 | Ti:1.8~2.8 | |||||
| 1J90 | ≤0.03 | ≤0.020 | ≤0.020 | ≤0.60 | ≤0.30 | 79.0~80.0 | 1.8~2.2 | 0.40~0.60 | 4.8~7.2 | |||||
| 1J91 | ≤0.03 | ≤0.020 | ≤0.020 | ≤0.60 | ≤0.30 | 78.5~80.0 | 0.90~1.20 | 7.7~8.4 | ||||||
It is mostly used in small transformers, pulse transformers, relays, transformer, magnetic amplifier, electromagnetic clutch, the reactor core and magnetic shielding which work in weak magnetic or secondary magnetic field.