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SAE-AISI H12 Steel vs. SAE-AISI T15 Steel

Both SAE-AISI H12 steel and SAE-AISI T15 steel are iron alloys. They have 78% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI H12 steel and the bottom bar is SAE-AISI T15 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 75
76
Tensile Strength: Ultimate (UTS), MPa 690 to 1850
830 to 2240

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Melting Completion (Liquidus), °C 1480
1690
Melting Onset (Solidus), °C 1440
1640
Specific Heat Capacity, J/kg-K 470
430
Thermal Conductivity, W/m-K 36
21
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
43
Density, g/cm3 7.9
8.7
Embodied Carbon, kg CO2/kg material 2.9
16
Embodied Energy, MJ/kg 41
250
Embodied Water, L/kg 76
140

Common Calculations

PREN (Pitting Resistance) 12
27
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 24 to 65
26 to 71
Strength to Weight: Bending, points 22 to 42
22 to 43
Thermal Diffusivity, mm2/s 9.8
5.6
Thermal Shock Resistance, points 22 to 60
26 to 70

Alloy Composition

Carbon (C), % 0.3 to 0.4
1.5 to 1.6
Chromium (Cr), % 4.8 to 5.5
3.8 to 5.0
Cobalt (Co), % 0
4.8 to 5.3
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 87.8 to 91.7
67.5 to 73.5
Manganese (Mn), % 0.2 to 0.5
0.15 to 0.4
Molybdenum (Mo), % 1.3 to 1.8
0 to 1.0
Nickel (Ni), % 0 to 0.3
0 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.8 to 1.2
0.15 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 1.0 to 1.7
11.8 to 13
Vanadium (V), % 0 to 0.5
4.5 to 5.3

Comparable Variants