Annealed H42 Tool Steel
Tool Steels
Property Overview
Density8.4g/cm³
Elastic Modulus200GPa
Tensile Strength700MPa
Yield StrengthUnknown
Brinell Hardness210HB
Maximum Service TemperatureUnknown
Chemical Composition
C
0.55 to 0.7%
CR
3.8 to 4.5%
NI
0 to 0.3%
MO
4.5 to 5.5%
MN
0.15 to 0.4%
P
0 to 0.030%
S
0 to 0.030%
CU
0 to 0.25%
V
1.8 to 2.2%
W
5.5 to 6.8%
FE
79.3 to 83.8%
Mechanical
Elastic (Young's, Tensile) Modulus
200 GPa
Poisson's Ratio
0.29
Shear Modulus
77 GPa
Tensile Strength: Ultimate (UTS)
700 MPa
Hardness
Brinell Hardness
210
Physical
Density
8.4 g/cm 3
Thermal
Latent Heat of Fusion
260 J/g
Melting Completion (Liquidus)
1620 °C
Melting Onset (Solidus)
1570 °C
Specific Heat Capacity
440 J/kg-K
Thermal Conductivity
24 W/m-K
Thermal Diffusivity
6.5 mm 2 /s
Thermal Expansion
12 µm/m-K
Thermal Shock Resistance
20 points
Calculated
PREN (Pitting Resistance)
31
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
23 points
Strength to Weight: Axial
23 points
Strength to Weight: Bending
21 points
Environmental
Base Metal Price
24 % relative
Embodied Carbon
8.8 kg CO 2 /kg material
Embodied Energy
130 MJ/kg
Embodied Energy
130 MJ/kg 57 x 10 3 BTU/lb
Embodied Water
98 L/kg
Embodied Water
98 L/kg 12 gal/lb
Registered Designations & Aliases
Annealed H42 Tool Steel
Standards
ASTM A681 ASTM A681: Standard Specification for Tool Steels Alloy
ASTM A681 ASTM A681: Standard Specification for Tool Steels Alloy Tool Steels, 5th ed., George Roberts et al., 1998 Tool Steels: Properties and Performance, Rafael A. Mesquita (editor), 2016