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Elmet Technologies

JIS S20CK Carbon Steel
Categories: Metal; Ferrous Metal; Carbon Steel; AISI 1000 Series Steel; Low Carbon Steel
Material Notes: Case Hardening. S20CK is comparable to JIS SWRCH20A, JIS SWRCH20K, JIS S20C, UNS G10200, and AISI 1020 - the carbon and manganese limits are identical and they differ only in silicon specification and impurity limits (SWRCH20A has a low level of aluminum specified). Applications include parts in the case hardened condition where core strength is not critical, and for shafts of larger cross section that are not highly stressed. Other uses include lightly stressed gears with hard wearing surfaces and case hardened pins and chains.

MatWeb has multiple entries with mechanical property data for different forms and heat treatments of AISI 1020.
Key Words: JIS G4051(79) S20CK. Comparable to JIS SWRCH20A, JIS SWRCH20K, JIS S20CK, UNS G10200, AISI 1020
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Physical PropertiesMetricEnglishComments
Density 7.87 g/cc0.284 lb/in³Estimated by MatWeb
 
Mechanical PropertiesMetricEnglishComments
Modulus of Elasticity 186 GPa27000 ksi(AISI 1020)
Poissons Ratio 0.290.29(AISI 1020)
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity  0.0000159 ohm-cm
@Temperature 0.000 °C		0.0000159 ohm-cm
@Temperature 32.0 °F		(AISI 1020)
 0.0000219 ohm-cm
@Temperature 100 °C		0.0000219 ohm-cm
@Temperature 212 °F		(AISI 1020)
 0.0000292 ohm-cm
@Temperature 200 °C		0.0000292 ohm-cm
@Temperature 392 °F		(AISI 1020)
 
Thermal PropertiesMetricEnglishComments
CTE, linear  11.7 µm/m-°C
@Temperature 20.0 - 100 °C		6.50 µin/in-°F
@Temperature 68.0 - 212 °F		(AISI 1020)
 12.1 µm/m-°C
@Temperature 20.0 - 200 °C		6.72 µin/in-°F
@Temperature 68.0 - 392 °F		(AISI 1020)
 12.8 µm/m-°C
@Temperature 20.0 - 300 °C		7.11 µin/in-°F
@Temperature 68.0 - 572 °F		(AISI 1020)
 13.3 µm/m-°C
@Temperature 20.0 - 400 °C		7.39 µin/in-°F
@Temperature 68.0 - 752 °F		(AISI 1020)
 13.9 µm/m-°C
@Temperature 20.0 - 500 °C		7.72 µin/in-°F
@Temperature 68.0 - 932 °F		(AISI 1020)
 14.4 µm/m-°C
@Temperature 20.0 - 600 °C		8.00 µin/in-°F
@Temperature 68.0 - 1110 °F		(AISI 1020)
 14.8 µm/m-°C
@Temperature 20.0 - 700 °C		8.22 µin/in-°F
@Temperature 68.0 - 1290 °F		(AISI 1020)
Specific Heat Capacity  0.486 J/g-°C
@Temperature >=100 °C		0.116 BTU/lb-°F
@Temperature >=212 °F		(AISI 1020)
 0.519 J/g-°C
@Temperature 150 - 200 °C		0.124 BTU/lb-°F
@Temperature 302 - 392 °F		(AISI 1020)
 0.599 J/g-°C
@Temperature 350 - 400 °C		0.143 BTU/lb-°F
@Temperature 662 - 752 °F		(AISI 1020)
 
Component Elements PropertiesMetricEnglishComments
Carbon, C 0.17 - 0.23 %0.17 - 0.23 %
Chromium, Cr <= 0.20 %<= 0.20 %Ni + Cr < 0.30%
Copper, Cu <= 0.25 %<= 0.25 %
Iron, Fe 98.1 - 99.4 %98.1 - 99.4 %As remainder
Manganese, Mn 0.30 - 0.60 %0.30 - 0.60 %
Nickel, Ni <= 0.20 %<= 0.20 %
Phosphorus, P <= 0.025 %<= 0.025 %
Silicon, Si 0.15 - 0.35 %0.15 - 0.35 %
Sulfur, S <= 0.025 %<= 0.025 %

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

Users viewing this material also viewed the following:
JIS S20C Carbon Steel
AISI 1020 Steel, mock carburized at 915°C (1680°F) for 8 hours, 775°C (1430°F) reheat, water quenched, 175°C (350°F) temper, 13 mm (0.5 in.) round
JIS SWRCH20A Carbon Steel
AISI 1020 Steel, cold rolled
AISI 1020 Steel, normalized at 870°C (1600°F)

MZJS20CK / 231163

Ensinger PEI




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