Cold Rolled Special Steel Strips
Carbon Tool Steels
Razor Blades Replacement, Long Blades, High-Grade Blades
Thickness
0.010-2.0mm
Width
3.0-300mm
Length
COIL or SHEET less than 2000mm
This is the manufacturing range of coils and sheets we manufacture.
TOKKIN's own grade of steel.
[note 1]"M" at the end of JIS steel grade symbol means steel grade corresponding to JIS G3311 Cold rolled special steel strip, and M may be abbreviated in some cases.
JIS
SKS81M (G3311)*Equivalent Material
The following values are typical values for high carbon steel(Fe-0.8C).
Density
7.84 g/cm³
Specific Heat
490 J/(kg・K)
Electrical Resistivity
18 μΩ・cm
Young's Modulus
208 GPa
Thermal Expansion
11.0×10-6/K(0~100℃)
Thermal Conductivity
50.2 W/(m・K)
Magnetism
Strong
Although cold rolled special steel is usually supplied in rolled condition (as-rolled or rolled finish), we can manufacture it from the softest annealed finish to the hardest full hardened finish. You can select the finish that best suits your needs and application.
TE-2 is usually used by quenching.
The general quenching condition is [Oil cooling at 790~850℃(Water Cooling at 760~820℃ ) ].
After holding for tens of seconds to several minutes depending on sizes, shapes, required properties, and quenching method, cooling is performed.
Water cooling is harder to quench, but due to the risk of quenching distortion and quench cracking, oil cooling may be used in some cases.
Please select tempering temperature according to required hardness and toughness by referencing quenching and tempering curve.
Material which is used to make various blades such as razor blades, shaver blades, and medical blades. Depending on the application and required properties, you can choose from a variety of options such as high carbon steel or martensitic stainless steel.
We manufacture carbon steel (SC material) and carbon tool steel (SK material) that conform to "JIS G 3311 Cold Rolled Special Steel Strip" and "JIS G 4802 Cold Rolled Steel Strip for Springs", as well as our own composition-adjusted steel grades for special applications.