Cold Rolled Slit CRGO Steel

Electric M4 cold-rolled slit CRGO steel coil transformer core is a special cold-rolled silicon steel material, through the use of slit cutting technology in the manufacturing process, so that the steel sheet has a high permeability and low hysteresis loss. It is widely used in the core manufacturing of transformers, providing higher energy transmission efficiency and lower energy loss.

Material:Grain-Oriented Electrical Steel                                                                                Technique:Cold Rolled
Thickness:0.18 - 0.3 Mm                                                                                Shape:Coil/sheet/plate
Place Of Origin:Shanghai, China                                                                                Standard:AISI,ASTM,BS,DIN,GB,JIS
Tolerance:Min Width Tolerance ±0.01                                                                                Processing:Welding, Decoiling, Cutting
Delivery Time:15-21 Days                                                                                Application:Transformer Core
Width:50-1250mm Or Requests                                                                                Coil ID:508/610mm
Highlight:          M4 CRGO Steel, Slit CRGO Steel, Transformer crgo slit coils

Cold Rolled Slit CRGO Steel

Electrical M4 Cold Rolled Slit CRGO Steel Coils For Transformer Core

Grain-Oriented Electrical Steel Characteristics

❶ Magnetic properties
The magnetic properties of the product is featured by its low core loss, high permeability and excellent application performance.

❷ Thickness tolerance
The good thickness tolerance is characterized by small difference in thickness in a direction parallel to the direction of rolling small difference in thickness in a direction perpendicular to the direction of rolling, and high lamination factor.

❸ Processing property
The product is suitable for punching and cutting with excellent dimensional tolerance.

❹ Insulation coating
The insulation coating has small color deviation, good adhesiveness and excellent resistance to heating and corrosion with high insulation coating resistance. There are several types of insulation coating available for production.

According to the test results performed by the professional inspection organizations, the contents of hazardous substances comply with all the prevailing international and domestic environment protection laws and regulations including EU RoHS and REACH regulations.

Dimensional and Shape Tolerances   

Nominal Thickness(mm)
Nominal Thickness Tolerance
Longitudinal Thickness Tolerance (mm)
Traverse Thickness Tolerance (mm)
Width Tolerance(mm) Flatness(%) Camber within 2m
±0.015 ≦ 0.020 ≦ 0.010 0~+1 ≦1.5 ≦0.9
≦ 0.020 ≦ 0.010
0~+1 ≦1.5 ≦0.9
≦ 0.025 ≦ 0.015
0~+1 ≦1.5 ≦0.9
≦ 0.025
≦ 0.015
0~+1 ≦1.5 ≦0.9
≦ 0.025
≦ 0.015
0~+1 ≦1.5 ≦0.9
≦ 0.015
0~+1 ≦1.5 ≦0.9


a. The traverse thickness deviation refers to the thickness difference between the center of the steel plate and 15mm from the edge.

b. The longitudinal thickness difference is the difference between the maximum thickness and the minimum thickness measured along the length direction (parallel to the rolling direction) on any steel strip with a length of 2m.

c. Please feel free to contact us if you have special requirements.