Annealed H25 Tool Steel
Tool Steels
Property Overview
Density9.1g/cm³
Elastic Modulus200GPa
Tensile Strength710MPa
Yield StrengthUnknown
Brinell Hardness210HB
Maximum Service TemperatureUnknown
Chemical Composition
C
0.22 to 0.32%
CR
3.8 to 4.5%
NI
0 to 0.3%
MN
0.15 to 0.4%
SI
0.15 to 0.4%
P
0 to 0.030%
S
0 to 0.030%
CU
0 to 0.25%
V
0.4 to 0.6%
W
14 to 16%
FE
77.2 to 81.3%
Mechanical
Elastic (Young's, Tensile) Modulus
200 GPa
Poisson's Ratio
0.29
Shear Modulus
79 GPa
Tensile Strength: Ultimate (UTS)
710 MPa
Hardness
Brinell Hardness
210
Physical
Density
9.1 g/cm 3
Thermal
Latent Heat of Fusion
250 J/g
Melting Completion (Liquidus)
1750 °C
Melting Onset (Solidus)
1700 °C
Specific Heat Capacity
420 J/kg-K
Thermal Conductivity
26 W/m-K
Thermal Diffusivity
6.7 mm 2 /s
Thermal Expansion
12 µm/m-K
Thermal Shock Resistance
22 points
Calculated
PREN (Pitting Resistance)
29
Stiffness to Weight: Axial
12 points
Stiffness to Weight: Bending
22 points
Strength to Weight: Axial
22 points
Strength to Weight: Bending
20 points
Environmental
Base Metal Price
38 % relative
Embodied Carbon
6.2 kg CO 2 /kg material
Embodied Energy
93 MJ/kg
Embodied Energy
93 MJ/kg 40 x 10 3 BTU/lb
Embodied Water
83 L/kg
Embodied Water
83 L/kg 9.9 gal/lb
Registered Designations & Aliases
Annealed H25 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