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EN 1.6957 Steel vs. EN 1.1131 Cast Steel

Both EN 1.6957 steel and EN 1.1131 cast steel are iron alloys. Both are furnished in the quenched and tempered condition. 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 (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.6957 steel and the bottom bar is EN 1.1131 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 18
27
Fatigue Strength, MPa 530
200
Impact Strength: V-Notched Charpy, J 71
78
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 930
530
Tensile Strength: Yield (Proof), MPa 780
270

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 450
400
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 47
52
Thermal Expansion, µm/m-K 13
12

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
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

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
120
Resilience: Unit (Modulus of Resilience), kJ/m3 1630
200
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 33
19
Strength to Weight: Bending, points 27
18
Thermal Diffusivity, mm2/s 13
14
Thermal Shock Resistance, points 27
17

Alloy Composition

Carbon (C), % 0.22 to 0.32
0.15 to 0.2
Chromium (Cr), % 1.2 to 1.8
0
Iron (Fe), % 92.7 to 94.7
97.6 to 98.9
Manganese (Mn), % 0.15 to 0.4
1.0 to 1.6
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 to 0.6
Sulfur (S), % 0 to 0.0070
0 to 0.030
Vanadium (V), % 0.050 to 0.15
0