Ningbo BestWay Magnet Co., Ltd.
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Payment Terms: | T/T,L/C,WU;paybal |
Place of Origin: | Zhejiang, China (Mainland) |
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BWZY-4C | BWZY-4N | ||
Magneticproperty | Residual induction Br(T) | 0.24-0.25 | 0.23-0.25 |
Coercive force Hcb(kA/m) | 159-183 | 159-183 | |
Intrinsic coercive force Hcj(kA/m) | >=200 | >=239 | |
Maximum energy product(BH)max(kJ/m3) | 11.1-11.9 | 10.7-11.9 | |
Adhesive agent components | Chlorinated polyethylene | Butyronitrile rubber | |
Appearance | The face:clean and polish on polish ;no bubble ;no scuffing ; Upper and below edge is vertical ; fracture is smooth. | ||
Tolerance | Length +0.2mm width +0.1mm thickness +0.05(or according to the contract requirement) | ||
Physical property | Tensile strength(Mpa) | >=7 | >=7 |
Elongation rate(%) | >=100 | >=100 | |
Hardness(SHA) | >=88 | >=86 | |
Density(g/cm3) | 3.6-3.7 | 3.6-3.7 | |
Temperature( o C) | -40-100 | -40-100 | |
Winding character | Contract value | ||
Thermal expansion coefficient | 28 x 10-5/ o C | ||
Corrosion Resisting Property | 10%HCI | Excellent | Excellent |
20%HCI | Excellent | Excellent | |
10%H2SO4 | Good | Good | |
20%H2SO4 | Good | Good | |
absolute ethly alcohol | Excellent | Excellent | |
methylbenzene | Bad | Bad | |
gasoline | Excellent | Excellent | |
benzene | Bad | Bad | |
acetone | Bad | Bad | |
28% ammonia water | Excellent | Excellent | |
engine oil | Good | Excellent |