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Austempered Cast Iron vs. EN 1.4584 Stainless Steel

Both austempered cast iron and EN 1.4584 stainless steel are iron alloys. They have 49% 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 1.4584 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270 to 490
150
Elastic (Young's, Tensile) Modulus, GPa 180
200
Elongation at Break, % 1.1 to 13
34
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 62 to 69
79
Tensile Strength: Ultimate (UTS), MPa 860 to 1800
500
Tensile Strength: Yield (Proof), MPa 560 to 1460
210

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Melting Completion (Liquidus), °C 1380
1440
Melting Onset (Solidus), °C 1340
1390
Specific Heat Capacity, J/kg-K 490
460
Thermal Conductivity, W/m-K 42
17
Thermal Expansion, µm/m-K 13
15

Otherwise Unclassified Properties

Base Metal Price, % relative 2.9
31
Density, g/cm3 7.5
8.1
Embodied Carbon, kg CO2/kg material 1.8
5.7
Embodied Energy, MJ/kg 25
78
Embodied Water, L/kg 48
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 95
140
Resilience: Unit (Modulus of Resilience), kJ/m3 880 to 3970
110
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 32 to 66
17
Strength to Weight: Bending, points 27 to 44
17
Thermal Diffusivity, mm2/s 11
4.5
Thermal Shock Resistance, points 25 to 53
12

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Arsenic (As), % 0 to 0.020
0
Carbon (C), % 3.4 to 3.8
0 to 0.025
Chromium (Cr), % 0 to 0.1
19 to 21
Copper (Cu), % 0 to 0.8
1.0 to 3.0
Iron (Fe), % 89.6 to 94
41.7 to 52
Magnesium (Mg), % 0 to 0.040
0
Manganese (Mn), % 0.3 to 0.4
0 to 2.0
Molybdenum (Mo), % 0 to 0.3
4.0 to 5.0
Nickel (Ni), % 0 to 2.0
24 to 26
Nitrogen (N), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.035
Selenium (Se), % 0 to 0.030
0
Silicon (Si), % 2.3 to 2.7
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.020
Tin (Sn), % 0 to 0.020
0
Vanadium (V), % 0 to 0.1
0