SAE-AISI H23 (T20823) Tungsten Hot-Work Steel
Tool Steels
Property Overview
Density8.7g/cm³
Elastic Modulus200GPa
Tensile Strength760 to 1550MPa
Yield StrengthUnknown
Brinell HardnessUnknown
Maximum Service TemperatureUnknown
Chemical Composition
C
0.25 to 0.35%
CR
11 to 12.8%
NI
0 to 0.3%
MN
0.15 to 0.4%
SI
0.15 to 0.6%
P
0 to 0.030%
S
0 to 0.030%
CU
0 to 0.25%
V
0.75 to 1.3%
W
11 to 12.8%
FE
71.3 to 76.7%
Mechanical
Elastic (Young's, Tensile) Modulus
200 GPa
Poisson's Ratio
0.28
Shear Modulus
80 GPa
Tensile Strength: Ultimate (UTS)
760 to 1550 MPa
Physical
Density
8.7 g/cm 3
Thermal
Latent Heat of Fusion
260 J/g
Melting Completion (Liquidus)
1680 °C
Melting Onset (Solidus)
1630 °C
Specific Heat Capacity
440 J/kg-K
Thermal Conductivity
20 W/m-K
Thermal Diffusivity
5.2 mm 2 /s
Thermal Expansion
12 µm/m-K
Thermal Shock Resistance
23 to 47 points
Calculated
PREN (Pitting Resistance)
32
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
22 points
Strength to Weight: Axial
24 to 49 points
Strength to Weight: Bending
21 to 34 points
Environmental
Base Metal Price
34 % relative
Embodied Carbon
6.9 kg CO 2 /kg material
Embodied Energy
110 MJ/kg
Embodied Energy
110 MJ/kg 46 x 10 3 BTU/lb
Embodied Water
120 L/kg
Embodied Water
120 L/kg 14 gal/lb
Registered Designations & Aliases
SAE-AISI H23 (T20823) Tungsten Hot-Work SteelT20823
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