| Standard | AiSi, ASTM, bs, DIN, GB, JIS |
| Grade | SGCC/CGCC/TDC51DZM/TDC52DTS350GD/TS550GD/DX51D+Z |
| Model Number | SGCC/CGCC/TDC51DZM/TDC52DTS350GD/TS550GD/DX51D+Z |
| Technique | Cold Rolled |
| Surface Treatment | Annealing and pickling |
| Application | Boiler Plate |
| Special Use | High-strength Steel Plate |
| Width | 600-1100mm |
| Length | 2-5M |
| Tolerance | ±1% |
| Type | Cold Rolled Steel Sheet |
| Processing Service | Bending, Welding, Decoiling, Cutting, Punching |
| Product Name | Hot Selling Cold rolled non-oriented silicon steel coil |
| Surface | Galvanized Coated |
| Material | ASTM/AISI/SGCC/CGCC/TDC51DZM/TDC52DTS350GD/TS550GD/DX51D+Z Q195-q345 |
| Shape | Plate. Coil |
| MOQ | 1 Ton |
| Thickness | 0.35-0.5 mm |
| Spangle | Big Medium Small Zero |
| Keyword | SPCC Material Specification Carbon Steel |
| Key words | Cold rolled non-oriented silicon steel coil SPCC Material |
Electrical steel sheet is a functional material manufactured by modifying the magnetic properties of steel for efficient magnetism and electricity conversion. Losses in power generation, transmission, and consumption are reduced, which contributes to energy saving. As a world leader in developing and commercializing high-grade steel sheet, Nippon Steel & Sumitomo Metal has accumulated a comprehensive skill set in technology and quality, and as such continues to maintain and expand its deep knowledge of steel materials and technology acquired over many years. This heritage plays an essential part in manufacture of the company's high-efficiency electrical steel, and its ability to satisfy the requirements of the customer, and society in general.
Production process of electrical steel
| smelt | 
 | Silicon steel is mainly smelted by oxygen converter, combined with vacuum treatment of molten steel and AOD technology during smelting and aluminum (0.2-0.5%) content to meet the requirements of different magnetic properties. The silicon and aluminum content of high-grade silicon steel sheets should be increased accordingly. Carbon, sulfur and inclusions should be minimized. |
| rolling |
| The magnetism, surface quality, filling factor and punchability of cold-rolled silicon steel sheets are better than those of hot-rolled silicon steel sheets, and they can be produced in coils. Therefore, some countries have stopped producing hot-rolled silicon steel sheets since the 1960s. China adopts a low temperature of about 900 ℃ one-time rapid hot rolling and stacking annealing under the protection of hydrogen to manufacture hot-rolled silicon steel sheets. The yield is high, and the surface quality and magnetic properties of the finished products are good. |
| pickling |
| The oxides of the hot-rolled steel strip are removed by the descaling machine and the hydrochloric acid tank to prevent surface defects of the cold-rolled finished product. |
| cold rolling |
| In order to ensure the thickness and material for different purposes, the deceleration ratio is set at 40%-90%, and advanced control equipment such as automatic thickness control and automatic shape control is realized. |
| annealing |
| It is a process of softening the material of the steel strip hardened in the cold stamping process. Through metal heating and rapid cooling, steel for deep processing and high-tensile steel are produced, and boxing (cover annealing) annealing and continuous annealing methods are adopted. |
| insulating coating |
| When the silicon steel plate is processed into an iron core, in order to improve its processing performance and prevent eddy current loss equivalent to the multiplication of the thickness of the steel plate, continuous coating equipment is used to spray insulating coating liquid on the upper and lower sides of the steel plate. |
Properties of electrical Steel
General series
| Grade | NominalThickness(mm) | Theoretical density(kg/dm3) | Theoretical density(kg/dm3) | Min.Magnetic induction(T) |
| 50Hz |
| B25 | B50 | B100 |
| 30SW230 | 0.3 | 7.65 | 2.30 | 2.90 | 1.49 | 1.60 | 1.70 |
| 35SW230 | 0.35 | 7.60 | 2.30 | 2.90 | 1.49 | 1.62 | 1.70 |
| 35SW250 | 0.35 | 7.65 | 2.50 | 3.14 | 1.49 | 1.62 | 1.70 |
| 35SW270 | 0.35 | 7.65 | 2.70 | 3.36 | 1.49 | 1.62 | 1.70 |
| 35SW300 | 0.35 | 7.65 | 3.00 | 3.74 | 1.49 | 1.62 | 1.70 |
| 35SW330 | 0.35 | 7.65 | 3.30 | 4.12 | 1.50 | 1.62 | 1.71 |
|
| 35SW360 | 0.35 | 7.65 | 3.60 | 4.55 | 1.51 | 1.63 | 1.72 |
| 35SW400 | 0.35 | 7.65 | 4.00 | 5.10 | 1.53 | 1.64 | 1.74 |
| 35SW440 | 0.35 | 7.70 | 4.40 | 5.60 | 1.54 | 1.65 | 1.74 |
| 50SW230 | 0.50 | 7.60 | 2.30 | 3.00 | 1.49 | 1.62 | 1.70 |
| 50SW250 | 0.50 | 7.60 | 2.50 | 3.21 | 1.49 | 1.62 | 1.70 |
| 50SW270 | 0.50 | 7.65 | 2.70 | 3.47 | 1.49 | 1.62 | 1.70 |
| 50SW290 | 0.50 | 7.65 | 2.90 | 3.71 | 1.49 | 1.62 | 1.70 |
| 50SW310 | 0.50 | 7.65 | 3.10 | 3.95 | 1.49 | 1.62 | 1.70 |
| 50SW330 | 0.50 | 7.65 | 3.30 | 4.20 | 1.49 | 1.60 | 1.70 |
| 50SW350 | 0.50 | 7.65 | 3.50 | 4.45 | 1.50 | 1.62 | 1.70 |
| 50SW400 | 7.70 | 4.00 | 5.10 | 1.53 | 1.64 | 1.73 |
| 50SW470 | 0.50 | 7.70 | 4.70 | 5.90 | 1.54 | 1.65 | 1.74 |
| 50SW530 | 0.50 | 7.70 | 5.30 | 6.66 | 1.56 | 1.65 | 1.75 |
| 50SW600 | 0.50 | 7.75 | 6.00 | 7.55 | 1.57 | 1.67 | 1.76 |
| 50SW700 | 0.50 | 7.80 | 7.00 | 8.80 | 1.60 | 1.69 | 1.77 |
| 50SW800 | 0.50 | 7.80 | 8.00 | 10.10 | 1.60 | 1.70 | 1.78 |
| 50SW1000 | 0.50 | 7.85 | 10.00 | 12.60 | 1.62 | 1.73 | 1.81 |
| 50SW1300 | 0.50 | 7.85 | 13.00 | 16.40 | 1.62 | 1.74 | 1.81 |
| 65SW400 | 0.65 | 7.65 | 4.00 | 5.20 | 1.52 | 1.65 | 1.72 |
| 65SW600 | 0.65 | 7.75 | 6.00 | 7.71 | 1.56 | 1.68 | 1.76 |
| 65SW700 | 0.65 | 7.75 | 7.00 | 8.89 | 1.57 | 1.67 | 1.76 |
| 65SW800 | 7.80 | 8.00 | 10.26 | 1.60 | 1.70 | 1.78 |
| 0.65 |
| 65SW1000 | 0.65 | 7.80 | 10.00 | 12.77 | 1.61 | 1.71 | 1.80 |
| 65SW1300 | 0.65 | 7.85 | 13.00 | 16.60 | 1.61 | 1.71 | 1.80 |
Non-oriented electrical steel usually contains a level of 2%-3.5% silicon. It has similar magnetic properties in all directions, the so-called isotropy. Grain-oriented electrical steel usually contains a level of 3% silicon and is processed in a way to develop ideal properties in the rolling direction. Cold-rolled non-grain-oriented steel (CRNGO) is less expensive than cold-rolled grain-oriented steel (CRGO). CRNGO can be used in cost-oriented applications with the inconstant direction of magnetic flux, such as electric motors and generators. CRGO is usually in coil form and has to be cut into laminations further, being used in transformer core applications, such as certain internal parts in audio output transformers.
