Silicon Steel

Silicon steel, also known as electrical steel, silicon electrical steel, lamination steel, relay steel, or transformer steel is specialty steel with silicon added to it, which improves its electrical resistivity and magnetic properties, and reduces hysteresis loss. This steel is ideal for various electrical applications where electromagnetic fields are important, such as transformers, magnetic coils, and electrical motors.

Silicon steel is a silicon iron alloy with a silicon content of 3%~ 5%.Divided into oriented silicon steel and non-oriented silicon steel, it is an important soft magnetic alloy which is indispensable for power, electron and military industry.Was once known as "the arts and crafts of steel products"

We have Silicon Steel Coil in Oriented and and Non Oriented type, commonly used in barretter,rotor of motor.

Material are 23Q110, 30Q120, 35Q145, 35WW230, 35WW250, 35WW270. Astm 36F145, 36F158, 36F168, 36F180, M80050A.

Features of Silicon Steel

Great Electromagnetic Performance
The silicon steel comes with low iron loss and high magnetic
 induction, especially HiB steel which has lower iron loss and
higher magnetic induction.

Good Shape
The material is often made in strips. Slight longitudinal and transverse thickness difference ensures a high lamination factor.
Insulating Coating
Uniform color, excellent insulative, high adhesion strength, high heat resistance, excellent processability, and superior corrosion resistance. Our silicon steel sheet is available in multiple insulating coating options, which have been reaching and RoHS certified that harmful matter content complies with domestic and overseas regulations on environmental protection.
Excellent Processability
Accessible to die-cut, with high dimensional accuracy.
Surface Quality
Our silicon steel features a smooth surface, without defects such as rust, rolling marks, holes, cold-lap,folds, bubbles, etc

Mechanical Property

Mechanical Property
Grade	Yeild Strength (N/mm2)	Ultra -Tension Strength (N/mm2)	Ductility (%)	Hardness (HV1
M35W230	430	560	20.0	225
M35W250	415	550	20.5	220
M35W270	400	515	20.5	215
M35W300	360	480	21.5	195
M35W360	350	480	23.5	190
M35W440	275	420	27.5	165
M35W550	265	415	33.5	160
M50W250	430	560	19.0	230
M50W270	410	550	21.5	225
M50W290	395	545	22.5	220
M50W310	385	510	24.5	210
M50W350	350	475	26.5	190
M50W400	320	460	36.0	170
M50W470	295	425	35.0	160
M50W600	280	410	37.0	140
M50W800	285	405	38.5	135
M50W1300(D)	250	360	40.0	115

Insulating Coating

Insulating Coating
Coating types	M11	M21
Component	Chromium containing , semi organic coating	Chromium free, semi organic coating
Coating thickness(μm)	0.7~1.5	0.8~5.0
Interlayer resistance (Ω•mm2 /slice)	≥100	≥100
Adhesive property	Class A or class B	Class A or class B
Punching property	Excellent	Excellent
Antirust property	Excellent	Excellent
Heat resisting property	Resistant annealing at 750 C, N2 protection, for 2h	Annealing resistance in general

-Fields of Application

Fields of application		Grain-oriented electrical steel			Non-oriented electrical steel
		Series G	Series P	Series R	Series A			Series AH		Series AR	Series AT
					230~400	440~700	800~1300	230~470	600~1000
Rotators	Large-sized motors	√			√
	Medium-sized motors				√	√		√
	Compressor motors				√	√	√	√	√	√
	General motors				√	√	√	√	√	√
	Small-sized precision motors				√	√	√	√		√	√
	Motors for electric cars				√			√		√	√
Static device	High-frequency motors				√			√			√
	Large-sized transformers	√	√	√
	Small-sized power transformers	√	√	√	√	√	√	√	√	√
	Transformers for instruments	√	√		√
	Reactors and magnetic amplifiers	√	√	√	√
	Power switches				√
	Transformers for welding					√	√		√
	Voltage regulators				√	√	√	√	√	√
	Magnetic sealers	√	√		√	√
	Electromagnetic devices for accelerators	√	√			√		√

-Material Selection

Grain-oriented electrical steel

Varieties	Common type	High induction type	Domain refined  high induction type
Large motors	√	√
Large transformers	√	√	√
Medium and small transformers	√	√	√
Distributing transformers	√	√
Voltage regulator	√	√	√
Reactor and magnetic amplifier	√	√
IF transformer		√
Mutual inductor	√	√
TV transformer	√	√
Radio transformer	√	√
Radio broadcast transformer		√

Inspection Certificate