Cold Rolled Steel Strips
Low carbon Steels
Watch Parts, Washers・Shims, Lead frames, Steering Parts, Thermal Protectors, Connectors, Camera Parts, Camera Module, Oil Rings
COIL or SHEET less than 2000mm
This is the manufacturing range of coils and sheets we manufacture.
Unless otherwise specified, we manufacture in accordance with JIS standards.
JIS standards and reference value of TOKKIN's chemical composition are shown in the table below.
The following values are typical values for low carbon steel(Fe-0.06C).
The table below shows each mechanical properties.
Table 1 Mechanical Properties
Table 2 Surface Finish
Table 3 Elongation at Temper A and S
The table below shows erichsen or bending test.
Table 4 Erichsen Value at Temper A and S
Table 5 Bending test
We produce wide range of thicknesses from 0.010 to 2.00 mm with precise thickness tolerances that cannot be manufactured by JIS or other companies. We guarantee high-precision thickness with little variation over the entire length of the hoop.
Various dimensional tolerances of the products we manufacture.