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EN 1.6957 Steel vs. Grade VDC Steel

Both EN 1.6957 steel and grade VDC steel are iron alloys. They have a moderately high 94% of their average alloy composition in common. There are 26 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 EN 1.6957 steel and the bottom bar is grade VDC steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280
510
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Reduction in Area, % 46
50
Shear Modulus, GPa 73
80
Tensile Strength: Ultimate (UTS), MPa 930
1700

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 450
400
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 47
51
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
1.9
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.1
1.4
Embodied Energy, MJ/kg 29
19
Embodied Water, L/kg 60
47

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 33
60
Strength to Weight: Bending, points 27
40
Thermal Diffusivity, mm2/s 13
14
Thermal Shock Resistance, points 27
50

Alloy Composition

Carbon (C), % 0.22 to 0.32
0.6 to 0.75
Chromium (Cr), % 1.2 to 1.8
0 to 0.3
Copper (Cu), % 0
0 to 0.060
Iron (Fe), % 92.7 to 94.7
98.3 to 99.35
Manganese (Mn), % 0.15 to 0.4
0.5 to 1.0
Molybdenum (Mo), % 0.25 to 0.45
0
Nickel (Ni), % 3.4 to 4.0
0
Phosphorus (P), % 0 to 0.010
0 to 0.020
Silicon (Si), % 0 to 0.15
0.15 to 0.3
Sulfur (S), % 0 to 0.0070
0 to 0.020
Vanadium (V), % 0.050 to 0.15
0