SAE-AISI T15 (T12015) Tungsten High-Speed Steel
Tool Steels
Property Overview
Density8.7g/cm³
Elastic Modulus200GPa
Tensile Strength830 to 2240MPa
Yield StrengthUnknown
Brinell HardnessUnknown
Maximum Service TemperatureUnknown
Chemical Composition
C
1.5 to 1.6%
CR
3.8 to 5.0%
NI
0 to 0.3%
MO
0 to 1.0%
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
4.5 to 5.3%
CO
4.8 to 5.3%
W
11.8 to 13%
FE
67.5 to 73.5%
Mechanical
Elastic (Young's, Tensile) Modulus
200 GPa
Poisson's Ratio
0.29
Shear Modulus
76 GPa
Tensile Strength: Ultimate (UTS)
830 to 2240 MPa
Physical
Density
8.7 g/cm 3
Thermal
Latent Heat of Fusion
250 J/g
Melting Completion (Liquidus)
1690 °C
Melting Onset (Solidus)
1640 °C
Specific Heat Capacity
430 J/kg-K
Thermal Conductivity
21 W/m-K
Thermal Diffusivity
5.6 mm 2 /s
Thermal Expansion
12 µm/m-K
Thermal Shock Resistance
26 to 70 points
Calculated
PREN (Pitting Resistance)
27
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
22 points
Strength to Weight: Axial
26 to 71 points
Strength to Weight: Bending
22 to 43 points
Environmental
Base Metal Price
43 % relative
Embodied Carbon
16 kg CO 2 /kg material
Embodied Energy
250 MJ/kg
Embodied Energy
250 MJ/kg 110 x 10 3 BTU/lb
Embodied Water
140 L/kg
Embodied Water
140 L/kg 16 gal/lb
Registered Designations & Aliases
SAE-AISI T15 (T12015) Tungsten High-Speed SteelT12015
Standards
ASTM A600 ASTM A600: Standard Specification for Tool Steel High Speed
ASTM A600 ASTM A600: Standard Specification for Tool Steel High Speed Sintering of Advanced Materials: Fundamentals and Processes, Zhigang Zak Fang (editor), 2010 Tool Steels, 5th ed., George Roberts et al., 1998 Tool Steels: Properties and Performance, Rafael A. Mesquita (editor), 2016