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Ceramic

Alnico

Samarium Cobalt

Bonded

NdFeB

Alnico Permanent Magnets

All magnetic properties are produced according to MMPA Standard.
Magnetic properties can also be produced according to Customer's specifications.

Size and Shape will be produced according to Customer's drawings.
Large selection of standard sizes in circular rod and rectangular bar.

Factory Specifics

Factory #1 Factory Overview Pictures

• Specializes in ALNICO and Samarium Cobalt.

• 140K square meter production area

• Production capability to 3,000 tons / yr.

• Largest producer of ALNICO magnets in China

• Production machinery imported from Germany, Japan, and the U.S.

• ISO 9002 Cert. (QS9000 by early 2003)

CHEMICAL COMPOSITION & PROPERTIES

MMPA Brief Designation	Original MMPA Class	IEC Code Reference	Chemical Composition*					Magnetic Properties (nominal)
MMPA Brief Designation	Original MMPA Class	IEC Code Reference	Al	Ni	Co	Cu	Ti	Max Energy Product (BH) max (MGO)	Residual Induction Br(kilogauss)	Coercive Force Hc(oersteds)	Intrinsic Coercive Force Hci(oersteds)
ISOTROPIC CAST ALNICO
1.4/0.48	Alnico 1	R1-0-1	12	21	5	3	-	1.4	7.2	470	480
1.7/0.58	Alnico 2	R1-0-4	10	19	13	3	-	1.7	7.5	560	580
1.35	Alnico 3	R1-0-2	12	25	-	3	-	1.35	7	480	500
ANISOTROPIC CAST ALNICO
5.5/0.64	Alnico 5	R1-1-1	8	14	24	3	-	5.5	12.8	640	640
6.5/6.7	Alnico 5 DG	R1-1-2	8	114	24	3	-	6.5	13.3	670	670
7.5/0.74	Alnico 5-7	R1-1-3	8	14	24	3	-	7.5	13.5	740	740
3.9/0.80	Alnico 6	R1-1-4	8	16	24	3	1	3.9	10.5	780	800
5.3/1.9	Alnico 8	R1-1-5	7	15	35	4	5	5.3	8.2	1650	1860
5.0/2.2	Alnico 8HC	R1-1-7	8	14	38	3	8	5	7.2	1900	12170
9.0/1.5	Alnico 9	R1-1-6	7	15	35	4	5	9	10.6	1500	1500
ISOTROPIC SINTERED ALNICO
1.5/0.57	Alnico 2	R1-0-4	10	19	13	3	-	1.5	7.1	550	570
ANISOTROPIC SINTERED ALNICO
3.9/0.63	Alnico 5	R1-1-20	8	14	24	3	-	3.9	10.9	620	630
2.9/0.82	Alnico 6	R1-1-21	8	15	24	3	1	2.9	9.4	790	820
4.0/1.7	Alnico 8	R1-1-22	7	15	35	4	5	4	7.4	1500	1690
4.5/2.0	Alnico 8HC	R1-1-23	7	14	38	3	8	4.5	6.7	1800	2020

*Note: Balance iron for all alloys

PHYSICAL PROPERTIES

Brief Designation	Original MMPA Class	IEC Code Reference	Density		Tensile Strength PSI	Transverse Modulus of Rupture PSI	Hardness (Rockwell C)	Coefficient of Thermal Expansion Inches x 10-6 per °C	Electrical Resistivity Ohm-cm x 10-6 (at 20 °C)
Brief Designation	Original MMPA Class	IEC Code Reference	g/cm³	ibs/in³	Tensile Strength PSI	Transverse Modulus of Rupture PSI	Hardness (Rockwell C)	Coefficient of Thermal Expansion Inches x 10-6 per °C	Electrical Resistivity Ohm-cm x 10-6 (at 20 °C)
ISOTROPIC CAST ALNICO
1.4/0.48	Alnico 1	R1-0-1	6.9	0.249	4,000	14,000	45	12.6	75
1.7/0.58	Alnico 2	R1-0-4	7.1	0.256	3,000	7,000	45	12.4	65
1.35/0.50	Alnico 3	R1-0-2	6.9	0.249	12,000	23,000	45	13	60
ANISOTROPIC CAST ALNICO
5.5/0.64	Alnico 5	R1-1-1	7.3	0.264	5,400	10,500	50	11.4	47
6.5/0.67	Alnico 5DG	R1-1-2	7.3	0.264	5,200	9,000	50	11.4	47
7.5/0.74	Alnico 5-7	R1-1-3	7.3	0.264	5,000	8,000	50	11.4	47
3.9/0.80	Alnico 6	R1-1-4	7.3	0.265	23,000	45,000	50	11.4	50
5.3/1.9	Alnico 8	R1-1-5	7.3	0.262	10,000	30,000	55	11	53
5.0/2.2	Alnico 8HC	R1-1-7	7.3	0.262	10,000	30,000	55	11	54
9.0/1.5	Alnico 9	R1-1-6	7.3	0.262	7,000	8,000	55	11	53
ISOTROPIC SINTERED ALNICO
1.5/0.57	Alnico 2	R1-0-4	6.8	0.245	65,000	70,000	45	12.4	68
ANISOTROPIC SINTERED ALNICO
3.9/0.63	Alnico 5	R1-1-1	6.9	0.250	50,000	55,000	45	11.3	50
2.9/0.82	Alnico 6	R1-1-4	6.9	0.250	55,000	100,000	45	11.4	54
4.0/1.7	Alnico 8	R1-1-5	7	0.252	50,000	55,000	45	11	54
4.5/2.0	Alnico 8HC	R1-1-7	7	0.252	-	55,000	45	11	54