Material properties of isotropic bonded SmFeN magnets (NITROQUENCH-P)

Magnetic properties

Compression molded magnets

		SP-14	SP-14L
Remanence Br	mT	750 ～ 820	750 ～ 830
	(kG)	(7.5 ～ 8.2)	(7.5 ～ 8.3)
Coercivity HCB	kA/m	450 ～ 520	430 ～ 510
	(kOe)	(5.7 ～ 6.5)	(5.5 ～ 6.4)
Intrinsic Coercivity HCJ	kA/m	670 ～ 800	550 ～ 670
	(kOe)	(8.5 ～ 10.0)	(7.0 ～ 8.5)
Maximum Energy Product (BH)max	kJ/m3	98 ～ 112	98 ～ 112
	(MGOe)	(12.4 ～ 14.0)	(12.4 ～ 14.0)
Temperature Coefficient of B	% / ℃	-0.05 ～ -0.07
Method of forming		Compression moulding

• The data in these tables are obtained from Daido's standard test pieces and are not guaranteed values.
• These values may vary depending on the magnet shape, dimensions, test conditions and equipment. It is recommended that the figures be verified in actual products.
• Guaranteed values may be set up by consultation for specific shape and sizes.
• NITROQUENCH-P is a series of SmFeN bonded magnets using certain polymers as a binder. When exposed to heat, physical, mechanical, or dimensional changes may occur. Please test the products in the specific environment before actual use.
• The contents of data are subject to change without prior notice.

Typical physical & mechanical properties

		SP-14, SP-14L
Density	g/cm3	5.8 ～ 6.4
Thermal Expansion Coefficient	10-6/℃ (20℃ ～ 100℃)	12.6
Bending strength (JIS K7171)	MPa (kgf/mm2)	52 5.3
Bending Modulus (JIS K7171)	MPa (kgf/mm2)	10800 1100
Ring Crushing Strength (JIS Z2507)	MPa (kgf/mm2)	54 5.5

Corrosion Resistance

Coatings	Dimension	Lasting time
		96Hr	192Hr	300Hr	500Hr	1000Hr
No coating	OD 21 × ID 9 × 7.0 mm L	A	A	A	A	A
Electrodeposition coating	OD 21 × ID 9 × 7.0 mm L	A	A	A	A	A

Degree of rust

• No rust: A
• Spotted rust: B
• All surface rust: C

Appearance after humidity test

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