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Elmet Technologies

JIS SKS44 Water-Hardening Tool Steel
Categories: Metal; Ferrous Metal; Tool Steel; Water-Hardening Steel

Material Notes: Hot Rolled Bar, Forgings, Annealed

Key Words: JIS G4404(83) SKS44 SKS 44. Comparable to SK2M, SKS43, SKS8, AISI W2 Tool Steel, UNS T72302
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Physical PropertiesMetricEnglishComments
Density 7.83 g/cc0.283 lb/in³(AISI W2)
 
Mechanical PropertiesMetricEnglishComments
Hardness, Brinell <= 207<= 207
Modulus of Elasticity 205 GPa29700 ksi(AISI W2)
Poissons Ratio 0.280.28Calculated (AISI W2)
Shear Modulus 80.0 GPa11600 ksiTypical for steels.
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.0000300 ohm-cm0.0000300 ohm-cm(AISI W2)
 
Thermal PropertiesMetricEnglishComments
CTE, linear  10.4 µm/m-°C
@Temperature 20.0 - 100 °C
5.78 µin/in-°F
@Temperature 68.0 - 212 °F
(AISI W2)
 12.2 µm/m-°C
@Temperature 0.000 - 300 °C
6.78 µin/in-°F
@Temperature 32.0 - 572 °F
(AISI W2)
 13.8 µm/m-°C
@Temperature 0.000 - 500 °C
7.67 µin/in-°F
@Temperature 32.0 - 932 °F
(AISI W2)
Specific Heat Capacity 0.461 J/g-°C
@Temperature 0.000 - 100 °C
0.110 BTU/lb-°F
@Temperature 32.0 - 212 °F
(AISI W2)
Thermal Conductivity 48.0 W/m-K333 BTU-in/hr-ft²-°F(AISI W2)
 
Processing PropertiesMetricEnglishComments
Processing Temperature 175 - 345 °C347 - 653 °FTempering Temperature (AISI W2)
 760 - 845 °C1400 - 1550 °FHardening Temperature (AISI W2)
Annealing Temperature 740 - 790 °C1360 - 1450 °F(AISI W2)
 
Component Elements PropertiesMetricEnglishComments
Carbon, C 0.80 - 0.90 %0.80 - 0.90 %
Chromium, Cr <= 0.20 %<= 0.20 %
Copper, Cu <= 0.25 %<= 0.25 %
Iron, Fe 97.3 - 99.1 %97.3 - 99.1 %As Remainder
Manganese, Mn <= 0.50 %<= 0.50 %
Nickel, Ni <= 0.25 %<= 0.25 %
Phosphorus, P <= 0.030 %<= 0.030 %
Silicon, Si <= 0.25 %<= 0.25 %
Sulfur, S <= 0.030 %<= 0.030 %
Vanadium, V 0.10 - 0.25 %0.10 - 0.25 %

References for this datasheet.

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