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EN 1.6958 Steel vs. Grade TDCrV Steel

Both EN 1.6958 steel and grade TDCrV steel are iron alloys. They have a moderately high 95% 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 1.6958 steel and the bottom bar is grade TDCrV steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 340
520
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Reduction in Area, % 56
51
Shear Modulus, GPa 73
80
Tensile Strength: Ultimate (UTS), MPa 1140
1730

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 450
410
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
49
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
2.1
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.0
1.9
Embodied Energy, MJ/kg 27
26
Embodied Water, L/kg 60
49

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 40
61
Strength to Weight: Bending, points 31
41
Thermal Diffusivity, mm2/s 13
13
Thermal Shock Resistance, points 39
51

Alloy Composition

Aluminum (Al), % 0.0050 to 0.050
0
Carbon (C), % 0.25 to 0.3
0.62 to 0.72
Chromium (Cr), % 1.2 to 1.7
0.4 to 0.6
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 92.6 to 94.5
97.8 to 98.8
Manganese (Mn), % 0.2 to 0.5
0.5 to 0.9
Molybdenum (Mo), % 0.35 to 0.55
0
Nickel (Ni), % 3.3 to 3.8
0
Phosphorus (P), % 0 to 0.020
0 to 0.025
Silicon (Si), % 0.15 to 0.3
0.15 to 0.3
Sulfur (S), % 0 to 0.015
0 to 0.020
Vanadium (V), % 0 to 0.12
0.15 to 0.25