Cold Rolled Special Steel Strips
Carbon Steels
S50CM | Carbon Steel
Overview & Features
Although it is possible to improve strength by quenching and tempering after stamping or other processing, because the Carbon content is not high, the increase in hardness due to quenching is not as high as that of carbon tool steels.
Examples of Applications
Watch Parts, Automotive Parts, Washers（Metal Washers）, Office Machines, Electric, Machinery Structural Parts and Springs, Clutch Parts, Thompson Blades, Bearing Parts
Available Shapes
Manufacturable Range (COIL, SHEET)
Thickness
0.10-2.0mm
Width
3.0-300mm
Length
COIL or SHEET less than 2000mm
This is the manufacturing range of coils and sheets we manufacture.
Standards
Unless otherwise specified, we manufacture in accordance with JIS standards.
［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.
Overseas standards are listed as equivalent or similar to our materials, so please use them as a reference.
JIS
S50CM (G3311), S50C (G4802)
AISI/SAE
UNS
1050
G10500
ISO
C50, C50E, C50R
EN
1.0540, 1.1206, 1.1241
GB
U20502, 50
Chemical Composition
Physical Properties
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
Quenching and Tempering
S50C is a steel grade that can be quenched.
The general quenching condition is ［Water cooling at 800～860℃ ］.
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.(Quenching and tempering curve of S60C is below for reference purposes. )
Related Pages
Cold Rolled Special Steel Strips
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.
