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Grade VDCrV Steel vs. ASTM A372 Grade M Steel

Both grade VDCrV steel and ASTM A372 grade M steel are iron alloys. They have a moderately high 95% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is grade VDCrV steel and the bottom bar is ASTM A372 grade M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 520
240 to 280
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 1730
810 to 910

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
450
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 49
46
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
5.0
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.9
2.0
Embodied Energy, MJ/kg 26
27
Embodied Water, L/kg 49
61

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 61
29 to 32
Strength to Weight: Bending, points 41
24 to 27
Thermal Diffusivity, mm2/s 13
12
Thermal Shock Resistance, points 51
24 to 27

Alloy Composition

Carbon (C), % 0.62 to 0.72
0 to 0.23
Chromium (Cr), % 0.4 to 0.6
1.5 to 2.0
Copper (Cu), % 0 to 0.060
0
Iron (Fe), % 97.8 to 98.8
92.5 to 95.1
Manganese (Mn), % 0.5 to 0.9
0.2 to 0.4
Molybdenum (Mo), % 0
0.4 to 0.6
Nickel (Ni), % 0
2.8 to 3.9
Phosphorus (P), % 0 to 0.025
0 to 0.015
Silicon (Si), % 0.15 to 0.3
0 to 0.3
Sulfur (S), % 0 to 0.020
0 to 0.010
Vanadium (V), % 0.15 to 0.25
0 to 0.080