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Samarium Cobalt  Magnets Properties

Parameter Unit SmCo5 Sm2Co17
Density g/cm3 8.3 8.4
Curie Temperature K 1000 1100
Vickers Hardness MPa 450-500 550-600
Compressing Strength MPa 1000 800
Electronic Resistivity Ω.cm 5~6x10-5 8~9x10-5
Bending Strength MPa 150-180 130-150
Stretching Strength MPa 400 350
Hot Coefficient of Expansion 10-6/oC ||6⊥12 ||8⊥11
Anti-Causticity Good Good

1. SmCo5 materials, (Smpr)co5:

Grade Remanence (Br) Coercivity Force (Hc) Intrinsic Coercivity (Hci) Maximum Energy (BH)max Max. Working Temp (Tw) Curie Temp (Tc) Br Temp Coef Hc Temp Coef
Units KG T KOe KA/m KOe KA/m MGO KJ/m3 oC oF oC oF %/oC  %/oC
16 8.1-8.5 0.81-0.85 7.8-8.3 620-660 15-23 1194-1830 14-16 110-127 250 482 750 1,382 -0.050 -0.30
18 8.5-9.0 0.85-0.90 8.3-8.8 660-700 15-23 1194-1830 16-18 127-143 250 482 750 1,382 -0.050 -0.30
20 9.0-9.4 0.90-0.94 8.5-9.1 676-725 15-23 1194-1830 19-21 150-167 250 482 750 1,382 -0.050 -0.30
22 9.2-9.6 0.92-0.96 8.9-9.4 710-748 15-23 1194-1830 20-22 160-175 250 482 750 1,382 -0.050 -0.30
24 9.6-10.0 0.96-1.00 9.2-9.7 730-770 15-23 1194-1830 22-24 175-190 250 482 750 1,382 -0.050 -0.30

2. SmCo5 materials:

Grade Remanence, Br Coercivity Force, Hc Intrinsic Coercivity, Hci Maximum Energy, (BH)max Max. Working Temp, Tw Curie Temp, Tc Br Temp Coef Hc Temp Coef
Units KG T KOe KA/m KOe KA/m MGOe KJ/m3 oC oF oC oF %/oC %/oC
16s 7.9-8.4 0.79-0.84 7.7-8.3 612-660 >23 >1830 15-17 118-135 250 482 750 1,382 -0.035 -0.28
18s 8.4-8.9 0.84-0.89 8.1-8.7 644-692 >23 >1830 17-19 135-151 250 482 750 1,382 -0.040 -0.28
20s 8.9-9.3 0.89-0.93 8.6-9.2 684-732 >23 >1830 19-21 150-167 250 482 750 1,382 -0.045 -0.28
22s 9.2-9.6 0.92-0.96 8.9-9.5 710-756 >23 >1830 21-23 167-183 250 482 750 1,382 -0.045 -0.28
24s 9.6-10.00 0.96-1.00 9.3-9.9 740-788 >23 >1830 23-25 183-199 250 482 750 1,382 -0.045 -0.28

3. SmCo5 materials with Low Temperature Coefficient, (SmGd)Co5:

Grade Remanence, Br Coercivity Force, Hc Intrinsic Coercivity, Hci Maximum Energy, (BH)max Max. Working Temp, Tw Curie Temp, Tc Br Temp Coef
Units KG T KOe KA/m KOe KA/m MGOe KJ/m3 oC oF oC oF %/oC
10LTC 6.2-6.6 0.62-0.66 6.1-6.5 485-517 >23 >1830 9.5-11 75-88 300 572 750 1,382 20-100oC: +0.0156
100-200oC: +0.0087
200-300oC: +0.0007

4. ce(coFecu)5 material:

Grade Remanence, Br Coercivity Force, Hc Intrinsic Coercivity, Hci Maximum Energy, (BH)max Max. Working Temp, Tw Curie Temp, Tc
Units KG T KOe KA/m KOe KA/m MGOe KJ/m3 oC oF oC oF
12 7.0-7.4 0.70-0.74 4.5-4.9 358-390 4.5-6 358-478 10-13 80-103 200 392 450 842

5. Sm2Co17 materials, Sm2(CoFecuzr)17 :

Grade Remanence, Br Coercivity Force, Hc Intrinsic Coercivity, Hci Maximum Energy, (BH)max Max. Working Temp, Tw Curie Temp, Tc Br Temp Coef Hc Temp Coef
Units KG T KOe KA/m KOe KA/m MGOe KJ/m3 oC oF oC oF %/oC %/oC
22 9.3-9.7 0.93-0.97 8.5-9.3 676-740 >18 >1433 20-23 160-183 300 572 800 1,472 -0.020 -0.20
24 9.5-10.2 0.95-1.02 8.7-9.6 692-764 >18 >1433 22-24 175-191 300 572 800 1,472 -0.025 -0.20
26 10.2-10.5 1.02-1.05 9.4-10.0 748-796 >18 >1433 24-26 191-207 300 572 800 1,472 -0.030 -0.20
28 10.3-10.8 1.03-1.08 9.5-10.2 756-812 >18 >1433 26-28 207-220 300 572 800 1,472 -0.035 -0.20
30 10.8-11.0 1.08-1.10 9.9-10.5 788-835 >18 >1433 28-30 220-240 300 572 800 1,472 -0.035 -0.20
32 11.0-11.3 1.10-1.13 10.2-10.8 812-860 >18 >1433 29-32 230-255 300 572 800 1,472 -0.035 -0.20
24H 9.5-10.2 0.95-1.02 8.7-9.6 692-764 >25 >1990 22-24 175-191 350 662 800 1,472 -0.025 -0.20
26H 10.2-10.5 1.02-1.05 9.4-10.0 748-796 >25 >1990 24-26 191-207 350 662 800 1,472 -0.030 -0.20
28H 10.3-10.8 1.03-1.08 9.5-10.2 756-812 >25 >1990 26-28 207-220 350 662 800 1,472 -0.035 -0.20
30H 10.8-11.0 1.08-1.10 9.9-10.5 788-835 >25 >1990 28-30 220-240 350 662 800 1,472 -0.035 -0.20
32H 11.0-11.3 1.10-1.13 10.2-10.8 812-860 >25 >1990 29-32 230-255 350 662 800 1,472 -0.035 -0.20
26M 10.2-10.5 1.02-1.05 8.5-9.8 676-780 12-18 955-1433 24-26 191-207 300 572 800 1,472 -0.035 -0.20
28M 10.3-10.8 1.03-1.08 8.5-10.0 676-796 12-18 955-1433 26-28 207-220 300 572 800 1,472 -0.035 -0.20
30M 10.8-11.0 1.08-1.10 8.5-10.5 676-835 12-18 955-1433 28-30 220-240 300 572 800 1,472 -0.035 -0.20
32M 11.0-11.3 1.10-1.13 8.5-10.7 676-852 12-18 955-1433 29-32 230-255 300 572 800 1,472 -0.035 -0.20
24L 9.5-10.2 0.95-1.02 6.8-9.0 541-716 8-12 636-955 22-24 175-191 250 482 800 1,472 -0.025 -0.20
26L 10.2-10.5 1.02-1.05 6.8-9.4 541-748 8-12 636-955 24-26 191-207 250 482 800 1,472 -0.035 -0.20
28L 10.3-10.8 1.03-1.08 6.8-9.6 541-764 8-12 636-955 26-28 207-220 250 482 800 1,472 -0.035 -0.20
30L 10.8-11.5 1.08-1.15 6.8-10.0 541-796 8-12 636-955 28-30 220-240 250 482 800 1,472 -0.035 -0.20
32L 11.0-11.5 1.10-1.15 6.8-10.2 541-812 8-12 636-955 29-32 230-255 250 482 800 1,472 -0.035 -0.20

6. Sm2Co17 materials with Low Temperature Coefficient, (SmEr)2(CoTM)17:

Grade Remanence, Br Coercivity Force, Hc Intrinsic Coercivity, Hci Maximum Energy, (BH)max Max. Working Temp, Tw Curie Temp, Tc Br Temp Coef
Units KG T KOe KA/m KOe KA/m MGOe KJ/m3 oC oF oC oF %/oC
22LTC 9.4-9.8 0.94-0.98 8.4-9.0 668-716 >18 >1433 21-23 167-183 300 572 840 1,544 -50-25oC: +0.005
20-100oC: -0.008
100-200oC: -0.008
200-300oC: -0.011