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Austempered Cast Iron vs. EN 1.4854 Stainless Steel

Both austempered cast iron and EN 1.4854 stainless steel are iron alloys. They have 40% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is austempered cast iron and the bottom bar is EN 1.4854 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270 to 490
180
Elastic (Young's, Tensile) Modulus, GPa 180
200
Elongation at Break, % 1.1 to 13
45
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 62 to 69
78
Tensile Strength: Ultimate (UTS), MPa 860 to 1800
750
Tensile Strength: Yield (Proof), MPa 560 to 1460
340

Thermal Properties

Latent Heat of Fusion, J/g 280
330
Melting Completion (Liquidus), °C 1380
1370
Melting Onset (Solidus), °C 1340
1330
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 42
11
Thermal Expansion, µm/m-K 13
15

Otherwise Unclassified Properties

Base Metal Price, % relative 2.9
34
Density, g/cm3 7.5
7.9
Embodied Carbon, kg CO2/kg material 1.8
5.7
Embodied Energy, MJ/kg 25
81
Embodied Water, L/kg 48
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 95
270
Resilience: Unit (Modulus of Resilience), kJ/m3 880 to 3970
280
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 32 to 66
26
Strength to Weight: Bending, points 27 to 44
23
Thermal Diffusivity, mm2/s 11
2.9
Thermal Shock Resistance, points 25 to 53
18

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Arsenic (As), % 0 to 0.020
0
Carbon (C), % 3.4 to 3.8
0.040 to 0.080
Cerium (Ce), % 0
0.030 to 0.080
Chromium (Cr), % 0 to 0.1
24 to 26
Copper (Cu), % 0 to 0.8
0
Iron (Fe), % 89.6 to 94
33.6 to 40.6
Magnesium (Mg), % 0 to 0.040
0
Manganese (Mn), % 0.3 to 0.4
0 to 2.0
Molybdenum (Mo), % 0 to 0.3
0
Nickel (Ni), % 0 to 2.0
34 to 36
Nitrogen (N), % 0
0.12 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.040
Selenium (Se), % 0 to 0.030
0
Silicon (Si), % 2.3 to 2.7
1.2 to 2.0
Sulfur (S), % 0 to 0.020
0 to 0.015
Tin (Sn), % 0 to 0.020
0
Vanadium (V), % 0 to 0.1
0