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SAE-AISI H12 Steel vs. Grade TDSiCrV Steel

Both SAE-AISI H12 steel and grade TDSiCrV steel are iron alloys. They have a moderately high 92% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 75
80
Tensile Strength: Ultimate (UTS), MPa 690 to 1850
2100

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Melting Completion (Liquidus), °C 1480
1440
Melting Onset (Solidus), °C 1440
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 36
47
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.3
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 9.5
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
2.3
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 2.9
1.9
Embodied Energy, MJ/kg 41
26
Embodied Water, L/kg 76
50

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24 to 65
75
Strength to Weight: Bending, points 22 to 42
47
Thermal Diffusivity, mm2/s 9.8
13
Thermal Shock Resistance, points 22 to 60
63

Alloy Composition

Carbon (C), % 0.3 to 0.4
0.5 to 0.7
Chromium (Cr), % 4.8 to 5.5
0.5 to 1.0
Copper (Cu), % 0 to 0.25
0 to 0.1
Iron (Fe), % 87.8 to 91.7
96.1 to 97.8
Manganese (Mn), % 0.2 to 0.5
0.4 to 0.9
Molybdenum (Mo), % 1.3 to 1.8
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0.8 to 1.2
1.2 to 1.7
Sulfur (S), % 0 to 0.030
0 to 0.020
Tungsten (W), % 1.0 to 1.7
0
Vanadium (V), % 0 to 0.5
0.1 to 0.25