AK Steel DI-MAX® M-45 Nonoriented Electrical Steel

Nonoriented electrical steels are silicon steels in which magnetic properties are practically the same in any direction of magnetism in the plane of the material. Standard grades from M-15 to M-47 are available with the advantages of special DI-MAX® processing that enhance the magnetic properties.

DI-MAX grades have superior permeability at high inductions, low average core loss and good gauge uniformity. In addition, cold finishing plus strip annealing produce a smooth surface and reduce buckles and waves, resulting in excellent flatness and a high stacking factor.

AK Steel Nonoriented Electrical Steels are available both Fully Processed and Semi-Processed, depending on grade. Properties of Fully Processed material are developed completely by AK Steel. These materials are ready for use without any additional processing required. However, a low-temperature heat treatment may be employed by the user to eliminate stresses introduced by fabrication of the material into cores. AK Steel Fully Processed Nonoriented Electrical Steels meet all the requirements of ASTM Specification A 677.

Semi-Processed steels are finished to final thickness and physical form by AK Steel, but are not fully annealed to develop final magnetic quality. With these materials, achievement of magnetic properties becomes the responsibility of the user. AK Steel Semi-Processed Nonoriented Electrical Steels meet all requirements of ASTM A 683.

DI-MAX M-45 is Fully Processed

Applications for M-43: Small Motors and Generators (<100 HP), Ballasts and Ignition Coils, Small Transformers (<10 KVA)

Information provided by AK Steel

电气性能	额定值 (公制)	额定值 (英制)	测试方法
电阻率	ohm-cm	ohm-cm	Fully Processed and Semi-Processed

磁学性质	额定值 (公制)	额定值 (英制)	测试方法
Core Loss	W/kg @Magnetic Field 1.50 T, Frequency 60.0 Hz	W/lb @Magnetic Field 1.50 T, Frequency 60.0 Hz	0.014" (29 gauge); ASTM A677
	W/kg @Magnetic Field 1.50 T, Frequency 60.0 Hz	W/lb @Magnetic Field 1.50 T, Frequency 60.0 Hz	0.0185" (26 gauge); ASTM A677
	W/kg @Magnetic Field 1.50 T, Frequency 60.0 Hz	W/lb @Magnetic Field 1.50 T, Frequency 60.0 Hz	0.025" (24 gauge); ASTM A677

材料描述		测试方法
Coercive Force (Oe)	0.50	B<sub>max</sub> =10kG
Hysteresis loss (J/lb/cycle)	0.0083	B<sub>max</sub> =10kG
Maximum Permeability	7200
Saturation Induction Kilogausses	20.8