MakeItFrom.com
Menu (ESC)

AISI 422 Stainless Steel vs. Automotive Malleable Cast Iron

Both AISI 422 stainless steel and automotive malleable cast iron are iron alloys. They have 85% of their average alloy composition in common. There are 28 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 AISI 422 stainless steel and the bottom bar is automotive malleable cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260 to 330
130 to 290
Elastic (Young's, Tensile) Modulus, GPa 200
180
Elongation at Break, % 15 to 17
1.0 to 10
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
70
Tensile Strength: Ultimate (UTS), MPa 910 to 1080
350 to 720
Tensile Strength: Yield (Proof), MPa 670 to 870
220 to 590

Thermal Properties

Latent Heat of Fusion, J/g 270
260
Melting Completion (Liquidus), °C 1480
1410
Melting Onset (Solidus), °C 1470
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 24
41
Thermal Expansion, µm/m-K 10
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.7
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 5.3
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 11
1.9
Density, g/cm3 7.9
7.6
Embodied Carbon, kg CO2/kg material 3.1
1.5
Embodied Energy, MJ/kg 44
20
Embodied Water, L/kg 100
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 150
6.8 to 30
Resilience: Unit (Modulus of Resilience), kJ/m3 1140 to 1910
130 to 950
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 32 to 38
13 to 26
Strength to Weight: Bending, points 26 to 30
14 to 24
Thermal Diffusivity, mm2/s 6.4
11
Thermal Shock Resistance, points 33 to 39
9.9 to 21

Alloy Composition

Carbon (C), % 0.2 to 0.25
2.2 to 2.9
Chromium (Cr), % 11 to 12.5
0
Iron (Fe), % 81.9 to 85.8
93.6 to 96.7
Manganese (Mn), % 0.5 to 1.0
0.15 to 1.3
Molybdenum (Mo), % 0.9 to 1.3
0
Nickel (Ni), % 0.5 to 1.0
0
Phosphorus (P), % 0 to 0.025
0.020 to 0.15
Silicon (Si), % 0 to 0.5
0.9 to 1.9
Sulfur (S), % 0 to 0.025
0.020 to 0.2
Tungsten (W), % 0.9 to 1.3
0
Vanadium (V), % 0.2 to 0.3
0