AISI Type S5 Tool Steel, austenitized 855-870°C (1575-1600°F), oil quenched to 55 HRC
Categories: Metal; Ferrous Metal; Alloy Steel; Medium Alloy Steel; Tool Steel; Shock-Resisting Steel

Material Notes: Type S5 is extremely tough and have excellent shock and abrasion resistance. Better hardenability than Type S4.

Key Words: UNS T41905
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Physical PropertiesMetricEnglishComments
Density 7.83 g/cc0.283 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Hardness, Knoop 624624Converted from Rockwell C Hardness.
Hardness, Rockwell C 5555
Hardness, Vickers 602602Converted from Rockwell C Hardness.
Tensile Strength, Ultimate 2230 MPa323000 psi
Tensile Strength, Yield 1730 MPa251000 psi
Elongation at Break 9.0 %9.0 %in 50 mm
Bulk Modulus 160 GPa23200 ksiTypical for steels.
Shear Modulus 80.0 GPa11600 ksiTypical for steels.
 
Thermal PropertiesMetricEnglishComments
CTE, linear 11.0 µm/m-°C6.11 µin/in-°F
 
Processing PropertiesMetricEnglishComments
Processing Temperature 175 - 425 °C347 - 797 °FTempering Temperature
 870 - 925 °C1600 - 1700 °FHardening Temperature
Annealing Temperature 775 - 800 °C1430 - 1470 °F
 
Component Elements PropertiesMetricEnglishComments
Carbon, C 0.50 - 0.65 %0.50 - 0.65 %
Chromium, Cr <= 0.35 %<= 0.35 %
Iron, Fe 95 %95 %As Balance
Manganese, Mn 0.80 %0.80 %
Molybdenum, Mo 0.77 %0.77 %
Phosphorus, P <= 0.030 %<= 0.030 %
Silicon, Si 2.0 %2.0 %
Sulfur, S <= 0.030 %<= 0.030 %
Vanadium, V <= 0.35 %<= 0.35 %

References for this datasheet.

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