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ACI-ASTM CN7MS Steel vs. Grade TDSiCrV Steel

Both ACI-ASTM CN7MS steel and grade TDSiCrV steel are iron alloys. They have 52% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CN7MS steel and the bottom bar is grade TDSiCrV steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
630
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 540
2100

Thermal Properties

Latent Heat of Fusion, J/g 340
270
Maximum Temperature: Mechanical, °C 1040
420
Melting Completion (Liquidus), °C 1400
1440
Melting Onset (Solidus), °C 1350
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 12
47
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 28
2.3
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 5.1
1.9
Embodied Energy, MJ/kg 71
26
Embodied Water, L/kg 180
50

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
75
Strength to Weight: Bending, points 19
47
Thermal Diffusivity, mm2/s 3.2
13
Thermal Shock Resistance, points 13
63

Alloy Composition

Carbon (C), % 0 to 0.070
0.5 to 0.7
Chromium (Cr), % 18 to 20
0.5 to 1.0
Copper (Cu), % 1.5 to 2.0
0 to 0.1
Iron (Fe), % 45.4 to 53.5
96.1 to 97.8
Manganese (Mn), % 0 to 1.0
0.4 to 0.9
Molybdenum (Mo), % 2.5 to 3.0
0
Nickel (Ni), % 22 to 25
0
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 2.5 to 3.5
1.2 to 1.7
Sulfur (S), % 0 to 0.030
0 to 0.020
Vanadium (V), % 0
0.1 to 0.25