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S1J27A soft magnetic alloy is mainly used for microelectronics rotor, solenoid valve, electromagnet pole head, relay, transducer and other electrical components in aviation and aerospace.
Alloy | （wt.%） | ||||||||
C | P | S | Mn | Si | Ni | Cr | Co | Fe | |
S1J27A | ≤0.04 | ≤0.015 | ≤0.015 | 0.20～0.40 | ≤0.25 | ≤0.30 | 0.30 ～ 0.60 | 26.50 ～ 28.00 | Bal |
Tablet 1 Cold rolled strip thickness, width and tolerance
Thickness（mm） | Tolerence（mm） | Width（mm） | Tolerance（mm） |
0.10～0.34 | +0/-0.02 | 150～270 | +0/-0.5 |
0.35～0.49 | +0/-0.04 | ||
0.50～1.00 | +0/-0.06 |
The DC magnetic properties of the alloy samples after heat treatment should conform to the provisions of Table 2
Tablet 2 S1J27A magnetic property
Alloy | Dimension | Different magnetic field strength（A/m）- Magnetic induction intensity | Hc | |||||||
B400 | B800 | B1600 | B2400 | B4000 | B8000 | B12000 | B16000 | |||
T ≥ | A/m ≤ | |||||||||
S1J27A | Cold rolled strip | 1.05 | 1.40 | 1.60 | 1.80 | 1.90 | 2.05 | 2.15 | 2.20 | 200 |
Cold drwn bar Hot rolled bar Forged bar | 1.00 | 1.35 | 1.45 | 1.65 | 1.75 | 1.95 | 2.05 | 2.20 | 220 | |
