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EN 1.6771 Steel vs. EN 1.0420 Cast Steel

Both EN 1.6771 steel and EN 1.0420 cast steel are iron alloys. They have a moderately high 94% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.6771 steel and the bottom bar is EN 1.0420 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 8.0 to 8.7
28
Fatigue Strength, MPa 440 to 680
170
Impact Strength: V-Notched Charpy, J 20 to 32
31
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 930 to 1180
460
Tensile Strength: Yield (Proof), MPa 740 to 1140
220

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 440
400
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 46
53
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
1.7
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.9
1.4
Embodied Energy, MJ/kg 25
18
Embodied Water, L/kg 58
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 75 to 93
110
Resilience: Unit (Modulus of Resilience), kJ/m3 1460 to 3450
130
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 33 to 41
16
Strength to Weight: Bending, points 27 to 31
17
Thermal Diffusivity, mm2/s 13
14
Thermal Shock Resistance, points 27 to 35
14

Alloy Composition

Carbon (C), % 0.27 to 0.33
0
Chromium (Cr), % 0.8 to 1.2
0
Iron (Fe), % 92.2 to 95
99.935 to 100
Manganese (Mn), % 0.6 to 1.0
0
Molybdenum (Mo), % 0.3 to 0.6
0
Nickel (Ni), % 3.0 to 4.0
0
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 0.6
0
Sulfur (S), % 0 to 0.020
0 to 0.030