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Austempered Cast Iron vs. EN 1.4530 Stainless Steel

Both austempered cast iron and EN 1.4530 stainless steel are iron alloys. They have 77% of their average alloy composition in common. There are 19 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is austempered cast iron and the bottom bar is EN 1.4530 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 62 to 69
76
Tensile Strength: Ultimate (UTS), MPa 860 to 1800
1030 to 1370

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Melting Completion (Liquidus), °C 1380
1460
Melting Onset (Solidus), °C 1340
1410
Specific Heat Capacity, J/kg-K 490
470
Thermal Expansion, µm/m-K 13
11

Otherwise Unclassified Properties

Base Metal Price, % relative 2.9
15
Density, g/cm3 7.5
7.9
Embodied Carbon, kg CO2/kg material 1.8
3.4
Embodied Energy, MJ/kg 25
46
Embodied Water, L/kg 48
130

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 32 to 66
36 to 48
Strength to Weight: Bending, points 27 to 44
29 to 35
Thermal Shock Resistance, points 25 to 53
35 to 47

Alloy Composition

Aluminum (Al), % 0 to 0.050
0.6 to 0.8
Arsenic (As), % 0 to 0.020
0
Carbon (C), % 3.4 to 3.8
0 to 0.015
Chromium (Cr), % 0 to 0.1
11.5 to 12.5
Copper (Cu), % 0 to 0.8
0
Iron (Fe), % 89.6 to 94
74.4 to 77.3
Magnesium (Mg), % 0 to 0.040
0
Manganese (Mn), % 0.3 to 0.4
0 to 0.1
Molybdenum (Mo), % 0 to 0.3
1.9 to 2.2
Nickel (Ni), % 0 to 2.0
8.5 to 9.5
Nitrogen (N), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.040
0 to 0.010
Selenium (Se), % 0 to 0.030
0
Silicon (Si), % 2.3 to 2.7
0 to 0.1
Sulfur (S), % 0 to 0.020
0 to 0.0050
Tin (Sn), % 0 to 0.020
0
Titanium (Ti), % 0
0.28 to 0.37
Vanadium (V), % 0 to 0.1
0