414 / 416 , Ground Floor, Maulana Azad Road,

Grant Road (East), Mumbai 400 004



Material Notes:

Description: CLC 1.2316 S grade is a 16%Cr 1%Mo mold steel with improved corrosion resistance properties, thanks to the chromium and molybdenum additions. Furthermore specific sulfur additions are considered to increase the machinability properties. The grade in the quenched tempered condition has a fully bainite martensite microstructure and can be delivered in the prehardened condition (300HB or 340HB). The grade is not designed for highly finish polished surfaces or etched surfaces. The grade is commonly used for mold steel applications including cores, inserts, molds… subjected to wet working conditions and / or storage conditions. The grade is also used for the manufacturing of corrosive materials like PVC.

Physical Properties
Metric English Comments
Density 7.75 g/cc 0.280 lb/in³


Mechanical Properties
Metric English Comments
Hardness, Rockwell C 340 340 Typical, in Longitudinal
Tensile Strength, Ultimate 1160 MPa 168000 psi Typical, Longitudinal Direction
Tensile Strength, Yield 950 MPa 138000 psi Typical, Longitudinal Direction
@Strain 0.200 % @Strain 0.200 %
Elongation at Break 10 % 10 % Typical, EL 5.65 Longitudinal Direction
Modulus of Elasticity 207 GPa 30000 ksi Typical, in Longitudinal Direction
Charpy Impact 12.0 J 8.85 ft-lb Typical (Longitudinal)


Thermal Properties
Metric English Comments
CTE, linear 11.0 µm/m-°C 6.11 µin/in-°F
@Temperature 20.0 - 100 °C @Temperature 68.0 - 212 °F
11.1 µm/m-°C 6.17 µin/in-°F
@Temperature 20.0 - 200 °C @Temperature 68.0 - 392 °F
11.7 µm/m-°C 6.50 µin/in-°F
@Temperature 20.0 - 400 °C @Temperature 68.0 - 752 °F
Specific Heat Capacity 0.460 J/g-°C 0.110 BTU/lb-°F
@Temperature 20.0°C @Temperature 68.0 °F
Thermal Conductivity 24.3 W/m-K 169 BTU-in/hr-ft²-°F
@Temperature 20.0 °C @Temperature 68.0°F


Component Elements Properties
Metric English Comments
Carbon, C 0.40 % 0.40 %
Chromium, Cr 16 % 16 % As remainder
Iron, Fe 81.32 - 81.42 % 81.32 - 81.42 %
Manganese, Mn .80 % .80 %
Molybdenum, Mo 1.03 % 1.03 %
Phosphorous, P <= 0.030 % <= 0.030 %
Silicon, Si 0.35 % 0.35 %
Sulfur, S <= 0.070 % <= 0.070 %