Tianjin Bohai Metal Corporation

ultra-thin non-oriented and grain oriented electrical steel sheet

ultra-thin non-oriented and grain oriented electrical steel sheet for transformer core silicon steel coilElectrical steel, also known as silicon steel, is a ferrosilicon soft magnetic alloy steel with very low carbon content, usually containing 0.5% to 4.5% silicon. The addition of silicon can increase the resistivity and maximum permeability of iron, and reduce the coercivity, iron loss and magnetic aging.

Silicon Steel

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Commodity name: ultra-thin non-oriented and grain oriented electrical steel sheet

Product Introduction

The difference between oriented silicon steel and non-oriented silicon steel

Non-oriented silicon steel: ferrosilicon alloy with very low carbon content. In the deformed and annealed steel sheet, its grains are distributed randomly. The silicon content of the alloy is 1.5% to 3.0%, or the sum of the silicon and aluminum content is 1.8% to 4.0%. The products are usually cold-rolled plates or strips, which are mainly used to manufacture motors and generators. Oriented silicon steel: It has strong directionality, the lowest iron loss value in the rolling direction, the highest magnetic permeability, and a higher magnetic induction value under a certain magnetization field. The silicon content of oriented silicon steel is about 3%. It also requires a low content of oxide inclusions in the steel and must contain certain inhibitors (MnS, A1N).

Specifications

Product Name	Electrical Steel, Lamination Steel, Silicon Electrical Steel, Silicon Steel, Relay Steel, Transformer Steel
Category	Grain-Oriented Electrical Steel; Non-oriented electrical steel
Standard	AISI, ASTM, BS, DIN, GB, JIS, EN
Thickness	0.27- 0.50 mm
Width	900-1230 mm
Brand	Gnee
Origin	China

Product Advantages

1.Stable performance

2.Excellent processing performance: High precision dimension and excellent mechanical properties make it easy to be sheared, punched and stacked by high speed punch machine. It also have good welding performance.

3.Excellent performance of Insulating coating: Uniform color, good insulation, high adhesion, excellent heat resistance and excellent processing performance

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

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

Product Application

Field	Purpose
Rotary machine	Large motor Medium motor Compressor motor General Motors Small precision motor Motor for electric vehicle
The Immobilizer	High frequency working motor Miniature power supply transformer Instrument use transformer Reactor Welding machine use transformer Power switch Manostat Magnetic sealing unit Electromagnet for accelerator