EARTH MAGNETS-EPF- END Series |
Test method |
Unit |
END-352K |
END-372K |
END-392K |
END-502K |
END-392C |
END-502C |
END-602C |
END-702C |
END-364 |
END-374 |
END-
1102 |
www.earthmagnets.com |
Magnetic power |
- |
- |
Nd-Fe-B alloy |
Base resin |
|
|
PA12
|
MAGNETIC PROPERTIES |
- |
- |
Isotropic
|
Anisotropic |
Residual flux densityBr |
|
mT |
450 |
490 |
540 |
590 |
550 |
590 |
640 |
680 |
450 |
500 |
720 |
Coercive forcebHc |
|
kA/m |
310 |
330 |
350 |
370 |
340 |
370 |
390 |
410 |
290 |
310 |
477 |
Intrinsic coercive forceiHc |
|
kA/m |
680 |
680 |
670 |
690 |
690 |
690 |
690 |
690 |
710 |
710 |
987 |
Maximum energy productBHmax |
|
kJ/m3 |
36 |
42 |
48 |
56 |
49 |
56 |
64 |
72 |
36 |
40 |
90 |
Thermal coefficientΔBr/Br |
|
%/℃ |
-0.1 |
-0.1 |
-0.1 |
-0.1 |
-0.1 |
-0.1 |
-0.1 |
-0.1 |
-0.1 |
-0.1 |
-0.1 |
Thermal coefficientΔHc/Hc |
|
%/℃ |
-0.4 |
-0.4 |
-0.4 |
-0.4 |
-0.4 |
-0.4 |
-0.4 |
-0.4 |
-0.4 |
-0.4 |
-0.4 |
OTHER PROPERTIES |
|
|
|
|
|
|
|
|
|
|
|
|
|
Tensile strength |
|
MPa |
46 |
42 |
40 |
37 |
45 |
43 |
37 |
35 |
42 |
35 |
- |
Flexural strength |
|
MPa |
98 |
93 |
85 |
75 |
95 |
92 |
80 |
70 |
82 |
70 |
70 |
Flexural modulus |
|
MPa |
9500 |
12000 |
15000 |
17500 |
11000 |
12000 |
17500 |
19000 |
21000 |
22000 |
12859 |
Izod impact (with notch) |
|
J/m |
42 |
42 |
40 |
40 |
41 |
41 |
40 |
40 |
42 |
40 |
39 |
Rockwell hardness coefficient |
|
R scale |
105 |
108 |
110 |
110 |
108 |
110 |
110 |
110 |
117 |
120 |
108 |
Heat deflection temperature1.82Mpa |
|
|
|
|
|
|
|
|
|
|
|
|
|
Specific gravity |
ASTM D-792 |
- |
4.7 |
5.0 |
5.4 |
5.7 |
5.0 |
5.4 |
5.7 |
5.9 |
4.6 |
5.0 |
5.3 |
Water absorption (230C 24 hrs in water) |
ASTM D-570 |
% |
0.06 |
0.05 |
0.04 |
0.04 |
0.04 |
0.04 |
0.04 |
0.04 |
0.01 |
0.01 |
- |
Molding shrinkage coefficient |
DIC Method |
% |
0.5 |
0.5 |
0.5 |
0.4 |
0.5 |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
Coefficient of thermal expansion |
DIC Method |
|
6.1X10-5 |
5.2X10-5 |
4.0X10-5 |
3.7X10-5 |
5.2X10-5 |
4.0X10-5 |
3.7X10-5 |
3.7X10-5 |
3.2X10-5 |
3.0X10-5 |
3.7X10-
5 |
Melt flow rate (2700C x 5 kg) |
ASTM D-1238 |
g/10min |
600 |
500 |
300 |
200 |
500 |
300 |
200 |
150 |
- |
- |
160 |
Melt flow rate (2700C x 10 kg) |
ASTM D-1238 |
g/10min |
- |
- |
- |
- |
- |
- |
- |
- |
110 |
70 |
- |