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Austempered Cast Iron vs. EN 1.7367 Steel

Both austempered cast iron and EN 1.7367 steel are iron alloys. They have a moderately high 90% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is austempered cast iron and the bottom bar is EN 1.7367 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270 to 490
200
Elastic (Young's, Tensile) Modulus, GPa 180
190
Elongation at Break, % 1.1 to 13
18
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 62 to 69
75
Tensile Strength: Ultimate (UTS), MPa 860 to 1800
670
Tensile Strength: Yield (Proof), MPa 560 to 1460
460

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Melting Completion (Liquidus), °C 1380
1460
Melting Onset (Solidus), °C 1340
1420
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 42
26
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Base Metal Price, % relative 2.9
7.0
Density, g/cm3 7.5
7.8
Embodied Carbon, kg CO2/kg material 1.8
2.6
Embodied Energy, MJ/kg 25
37
Embodied Water, L/kg 48
88

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 95
110
Resilience: Unit (Modulus of Resilience), kJ/m3 880 to 3970
560
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 32 to 66
24
Strength to Weight: Bending, points 27 to 44
22
Thermal Diffusivity, mm2/s 11
6.9
Thermal Shock Resistance, points 25 to 53
19

Alloy Composition

Aluminum (Al), % 0 to 0.050
0 to 0.020
Arsenic (As), % 0 to 0.020
0
Carbon (C), % 3.4 to 3.8
0.080 to 0.12
Chromium (Cr), % 0 to 0.1
8.0 to 9.5
Copper (Cu), % 0 to 0.8
0
Iron (Fe), % 89.6 to 94
87.3 to 90.3
Magnesium (Mg), % 0 to 0.040
0
Manganese (Mn), % 0.3 to 0.4
0.3 to 0.6
Molybdenum (Mo), % 0 to 0.3
0.85 to 1.1
Nickel (Ni), % 0 to 2.0
0 to 0.4
Niobium (Nb), % 0
0.060 to 0.1
Nitrogen (N), % 0
0.030 to 0.070
Phosphorus (P), % 0 to 0.040
0 to 0.030
Selenium (Se), % 0 to 0.030
0
Silicon (Si), % 2.3 to 2.7
0.2 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.010
Tin (Sn), % 0 to 0.020
0
Titanium (Ti), % 0
0 to 0.010
Vanadium (V), % 0 to 0.1
0.18 to 0.25
Zirconium (Zr), % 0
0 to 0.010