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Grade TDSiCr Steel vs. SAE-AISI M3 Class 1 Steel

Both grade TDSiCr steel and SAE-AISI M3 class 1 steel are iron alloys. They have 82% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is grade TDSiCr steel and the bottom bar is SAE-AISI M3 class 1 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 80
77
Tensile Strength: Ultimate (UTS), MPa 1950
770 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 270
260
Melting Completion (Liquidus), °C 1440
1610
Melting Onset (Solidus), °C 1400
1570
Specific Heat Capacity, J/kg-K 480
440
Thermal Conductivity, W/m-K 46
26
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
25
Density, g/cm3 7.7
8.3
Embodied Carbon, kg CO2/kg material 1.5
10
Embodied Energy, MJ/kg 20
150
Embodied Water, L/kg 48
100

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 70
26 to 72
Strength to Weight: Bending, points 45
22 to 44
Thermal Diffusivity, mm2/s 12
7.2
Thermal Shock Resistance, points 58
24 to 67

Alloy Composition

Carbon (C), % 0.5 to 0.6
1.0 to 1.1
Chromium (Cr), % 0.5 to 0.8
3.8 to 4.5
Copper (Cu), % 0 to 0.1
0 to 0.25
Iron (Fe), % 96.6 to 97.8
76.9 to 82.9
Manganese (Mn), % 0.5 to 0.9
0.15 to 0.4
Molybdenum (Mo), % 0
4.8 to 6.5
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 1.2 to 1.6
0.2 to 0.45
Sulfur (S), % 0 to 0.020
0 to 0.030
Tungsten (W), % 0
5.0 to 6.8
Vanadium (V), % 0
2.3 to 2.8