MakeItFrom.com
Menu (ESC)

AISI 440C Stainless Steel vs. Austempered Cast Iron

Both AISI 440C stainless steel and austempered cast iron are iron alloys. They have 83% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is AISI 440C stainless steel and the bottom bar is austempered cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
180
Elongation at Break, % 2.0 to 14
1.1 to 13
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
62 to 69
Tensile Strength: Ultimate (UTS), MPa 710 to 1970
860 to 1800
Tensile Strength: Yield (Proof), MPa 450 to 1900
560 to 1460

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Melting Completion (Liquidus), °C 1480
1380
Melting Onset (Solidus), °C 1370
1340
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 22
42
Thermal Expansion, µm/m-K 10
13

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
2.9
Density, g/cm3 7.7
7.5
Embodied Carbon, kg CO2/kg material 2.2
1.8
Embodied Energy, MJ/kg 31
25
Embodied Water, L/kg 120
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 39 to 88
19 to 95
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 26 to 71
32 to 66
Strength to Weight: Bending, points 23 to 46
27 to 44
Thermal Diffusivity, mm2/s 6.0
11
Thermal Shock Resistance, points 26 to 71
25 to 53

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Arsenic (As), % 0
0 to 0.020
Carbon (C), % 1.0 to 1.2
3.4 to 3.8
Chromium (Cr), % 16 to 18
0 to 0.1
Copper (Cu), % 0
0 to 0.8
Iron (Fe), % 78 to 83.1
89.6 to 94
Magnesium (Mg), % 0
0 to 0.040
Manganese (Mn), % 0 to 1.0
0.3 to 0.4
Molybdenum (Mo), % 0 to 0.75
0 to 0.3
Nickel (Ni), % 0
0 to 2.0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Selenium (Se), % 0
0 to 0.030
Silicon (Si), % 0 to 1.0
2.3 to 2.7
Sulfur (S), % 0 to 0.015
0 to 0.020
Tin (Sn), % 0
0 to 0.020
Vanadium (V), % 0
0 to 0.1