High lamination Core Transformer Cold Rolled Non Grain Oriented Silicon Steel
Sep 29, 2025
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Cold Rolled Non Grain Oriented Silicon Steel Product Description
Cold rolled non grain oriented steel has stable magnetic properties in all directions and shows excellent performance in high lamination. CRNGO steel is frequently used in motors, generators and cores of silicon steel transformers and many other promising industries.
CRNGO Electrical Silicon Steel Advantages
- 1. low iron loss
- 2. high magnetic induction
- 3. uniform thickness
- 4. good punchability
- 5. small thickness deviation
- 6. stable performance
- 7. high lamination coefficient
- 8. outstanding welding performance
- 9. good corrosion resistance
- 10. good freon resistance
CRNGO Electrical Silicon Steel Applications
Non-grain oriented silicon has a variety of usage in generators, distributors, and consumption of electricity, etc. GNEE could provide outstanding quality semi-products such as high lamination steel fittings and silicon steel transformer cores.
Electrical Silicon Steel specifications
|
Product Name |
Cold Rolled Grain NON-Oriented Silicon Steel |
|
Thickness |
0.20mm-0.50mm |
|
Width |
20mm-1250mm or as required |
|
Length |
Coil Or As Required |
|
Technique |
Cold Rolled |
|
Surface Treatment |
Coated |
Product Series
|
Product series |
Main specification |
Features |
|
General series |
0.35mm 0.50mm 0.65mm |
Similar excellent product performance benchmarking with leading companies at home and abroad |
|
High efficient series |
0.35mm 0.50mm |
Lower core loss and higher magnetic induction than concentional products |
|
Stress relief annealing series |
0.35mm 0.50mm |
Low core loss, high magnetic induction and good machinablity after annealing |
|
New energy vehicle series |
0.35mm 0.30mm 0.27mm 0.20mm |
Excellent electromagnetic performance under high frequancy |
Grade Table (For reference)
|
Type |
Thickness (mm) |
Shousteel |
NSC |
JFE |
TKS |
Posco |
NI&Sco |
AK |
|
General series |
0.35 |
35SW230 |
35H230 |
35JN230 |
M235-35A |
35PN230 |
|
|
|
35SW250 |
35H250 |
35JN250 |
M250-35A |
35PN250 |
2413 |
M-15 |
||
|
35SW270 |
35H270 |
35JN270 |
M270-35A |
35PN270 |
2412 |
M-19 |
||
|
35SW300 |
35H300 |
35JN300 |
M300-35A |
35PN300 |
2411 |
M-22/M-27 |
||
|
35SW360 |
35H360 |
35JN360 |
|
35PN360 |
|
|
||
|
35SW440 |
35H440 |
35JN440 |
|
35PN455 |
|
|
||
|
35SW550 |
|
|
|
35PN560 |
|
|
||
|
0.5 |
50SW230 |
50H230 |
50JN230 |
M230-50A |
50PN230 |
|
|
|
|
50SW250 |
50H250 |
50JN250 |
M250-50A |
50PN250 |
|
|
||
|
50SW270 |
50H270 |
50JN270 |
M270-50A |
50PN270 |
2414 |
|
||
|
50SW290 |
50H290 |
50JN290 |
M290-50A |
50PN290 |
2413 |
M-15 |
||
|
50SW310 |
50H310 |
50JN310 |
M310-50A |
50PN310 |
2412 |
M-19 |
||
|
50SW350 |
50H350 |
50JN350 |
M350-50A |
50PN350 |
|
M-22 |
||
|
50SW400 |
|
|
M400-65A |
50PN400 |
|
M-27/M-36 |
||
|
50SW470 |
50H470 |
50JN470 |
M470-50A |
50PN445 |
2214 |
|
||
|
50SW600 |
50H600 |
50JN600 |
M600-50A |
50PN595 |
2212 |
|
||
|
50SW700 |
50H700 |
50JN700 |
M700-50A |
50PN760 |
|
M-47 |
||
|
50SW800 |
50H800 |
50JN800 |
M800-50A |
50PN890 |
2011 |
|
||
|
50SW1000 |
50H1000 |
50JN1000 |
M940-50A |
50PN1015 |
|
|
||
|
50SW1300 |
50H1300 |
50JN1300 |
M1100-50A |
50PN1270 |
|
|
||
|
0.65 |
65SSW800 |
|
65JN800 |
M800-65A |
65PN890 |
|
M-47 |
|
|
65SW1000 |
|
65JN1000 |
M1000-65A |
65PN1015 |
|
|
||
|
65SW1300 |
|
65JN1300 |
M1300-65A |
65PN1270 |
|
|
||
|
High efficient series |
0.5 |
50SWH470 |
|
50JNE470 |
|
|
|
|
|
50SWH600 |
|
|
|
|
|
|
||
|
50SWH800 |
|
|
|
|
|
|
||
|
50SWH1000 |
|
|
|
|
|
|
||
|
Stress relief annealing series |
0.35 |
35SWR300 |
|
|
|
|
|
|
|
0.5 |
50SW350 |
|
50JNA350 |
|
|
|
|
|
|
New energy vehicle strip series |
0.3 |
30SW2700 |
|
|
|
|
|
|
|
0.27 |
27SW2300 |
|
|
|
|
|
|
|
|
0.2 |
20SW1500 |
20HTH1500 |
20JNEH1500 |
|
|
|
|
Typical Mechanical Properties
General Series
|
Grade |
Nominal Thickness (mm) |
Theoretical Density (kg/dm³) |
Yield Strength (N/mm²) |
Tensile Strength (N/mm²) |
Hardness (Hv1) |
Elongation (%) |
|
|
35SW230 |
0.35 |
7.60 |
430 |
525 |
214 |
10 |
|
|
35SW250 |
7.60 |
420 |
490 |
200 |
10 |
|
|
|
35SW300 |
7.65 |
370 |
500 |
185 |
25 |
|
|
|
35SW360 |
7.65 |
325 |
470 |
165 |
30 |
|
|
|
35SW440 |
7.70 |
280 |
425 |
150 |
30 |
|
|
|
35SW550 |
7.75 |
255 |
420 |
140 |
35 |
|
|
|
50SW250 |
0.5 |
7.60 |
430 |
530 |
220 |
15 |
|
|
50SW270 |
7.60 |
410 |
520 |
195 |
12 |
|
|
|
50SW290 |
7.60 |
410 |
520 |
195 |
12 |
|
|
|
50SW310 |
7.65 |
375 |
510 |
185 |
30 |
|
|
|
50SW350 |
7.65 |
370 |
510 |
185 |
35 |
|
|
|
50SW400 |
7.65 |
320 |
460 |
165 |
35 |
|
|
|
50SW470 |
7.75 |
250 |
410 |
135 |
35 |
|
|
|
50SW600 |
7.75 |
240 |
400 |
126 |
35 |
|
|
|
50SW700 |
7.80 |
220 |
379 |
113 |
37 |
|
|
|
50SW800 |
7.80 |
230 |
379 |
113 |
37 |
|
|
|
50SW1000 |
7.85 |
240 |
370 |
114 |
45 |
|
|
|
50SW1300 |
7.85 |
245 |
375 |
115 |
45 |
|
New Energy Vehicle Series
|
Grade |
Nominal Thickness (mm) |
Theoretical Density (kg/dm³) |
Yield Strength (N/mm²) |
Tensile Strength (N/mm²) |
Hardness (Hv1) |
Elongation (%) |
|
|
20SW1200 |
0.20 |
7.65 |
400 |
520 |
200 |
10 |
|
|
20SW1500 |
0.20 |
7.65 |
370 |
480 |
180 |
10 |
|
|
27SW1500 |
0.27 |
7.65 |
420 |
520 |
210 |
20 |
|
|
30SW1600 |
0.30 |
7.65 |
440 |
560 |
210 |
25 |
|
|
35SW1700 |
0.35 |
7.65 |
440 |
560 |
210 |
25 |
|
|
35SW1900 |
0.35 |
7.65 |
410 |
530 |
200 |
25 |
|
|
25SWH1400 |
0.25 |
7.65 |
410 |
530 |
200 |
20 |
|
|
27SWH1400 |
0.27 |
7.65 |
410 |
530 |
200 |
20 |
|
|
30SWH1500 |
0.30 |
7.65 |
410 |
530 |
200 |
25 |
|
|
35SWH1900 |
0.35 |
7.65 |
370 |
510 |
180 |
25 |
|
|
35SWYS600 |
0.35 |
7.65 |
620 |
660 |
220 |
15 |
|
Coating Types
|
Coating Code |
Coating Type |
Coating Thickness |
Application |
Heat Resistance |
Insulation Resistance |
Stamping Ability |
Lamination Factor |
Weldability |
|
M1 |
Cr-free environmental friendly coating |
0.4 - 2μm |
General Coating |
In non-oxidation environment the coating is normal through 750°C stress relieving annealing. |
good |
very good |
high |
very good |
|
M4 |
Simi-organic Cr-containing coating |
0.5 - 3μm |
General Coating |
In non-oxidation environment the coating is normal through 750°C stress relieving annealing. |
good |
very good |
high |
very good |
|
M5 |
Thick environmental friendly coating |
2 - 5μm |
Suits perfectly for mid-sized and heavy machines |
The coating can be resistant to continuous exposure to temperatures of up to 270°C, and well suits for aluminium coating, welding and annealing. |
very good |
good |
high |
good |
|
M6 |
C6 environmental friendly coating |
2 - 8μm |
Suits perfectly for mid-sized and heavy machines, particularly for big generator. |
The coating can be resistant to continuous exposure to temperatures of up to 180°C, and withstands aluminium coating and the burn off process during a machine repair. |
very good |
good |
high |
good |
Note: If users have no special requirements, M4 is the default coating.
GNEE Featured Products
Gnee provides premium iron cores to the world. Our cores can be selected in a wide range of materials, shapes, applications, manufacturing techniques, etc., to meet customers' diverse demands. Explore our wide product range now~
Manufacturing Process
1. Raw Material Sourcing
2. Slitting
3. Punching
4. Laminating
5. Core Forming
6. testing
GNEE EC
Founded in 2008 and located in Anyang in China, Gnee Electric is a high-tech enterprise specializing in researching and manufacturing iron core products.
The company currently occupies over 20,000 square meters and employs more than 200 people, including over 80 professionals. After more than 18 years of development, we have built our own magnetic material production base and independently develope, produce, and sell various kinds of iron cores. The common types include silicon steel cores, motor cores, transformer cores, toroidal iron cores, special-shaped cores, custom cores, and others. Our cores are widely applied in different sectors including transformers, motors, mutual inductors, voltage stabilizers, welding machines, magnetic amplifiers, and instrumentation, providing diverse core solutions to global customers.
30+
Types of Products
18k+
Happy Clients
Why Choose GNEE EC?
GNEE EC was founded in 2008, which is a National High-tech Enterprise & Famous Brand Enterprise in China, developing into a professional manufacturer and supplier of high-quality iron cores.
18+
Over 18 years of success in the iron core industry;
National High-tech Enterprise & Famous Brand Enterprises in China;
200+
Over 200 employees;
The R&D team has more than 80 experienced engineers and the production team has more than 100 skilled staffs;
35+
Annual turnover up to 35 million dollor per year;
Owns many sets of highly automatic winding, annealing, and assembling machines;
1,000+
Over 1000 customers in domestic and overseas markets;
core Products are exported to more than 70 countries in the world;
Gnee Iron Core Factory Overview
Meet Our Sales Manager
"The Core of the Iron Core, the Power of Leadership" - See Our Great Decision-Makers Deeply Engaged in the Magnetic Materials Industry.
Edison Zhang
CEO
Kelly Zhang
General Manager
Alex Cao
Sales Manager
Industries Served
Automobile Industry
New Energy
Transformer Applications
Our Mission
Strive To Create world-class Iron core brand
With 18 Years of industry experience, we focus on the research, development, and manufacturing of high-quality iron cores for electricity, industrial control, new energy, and automotive markets