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EN 1.4905 Stainless Steel vs. Automotive Malleable Cast Iron

Both EN 1.4905 stainless steel and automotive malleable cast iron are iron alloys. They have 88% of their average alloy composition in common. There are 27 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 EN 1.4905 stainless steel and the bottom bar is automotive malleable cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
180
Elongation at Break, % 19
1.0 to 10
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
70
Tensile Strength: Ultimate (UTS), MPa 740
350 to 720
Tensile Strength: Yield (Proof), MPa 510
220 to 590

Thermal Properties

Latent Heat of Fusion, J/g 270
260
Melting Completion (Liquidus), °C 1480
1410
Melting Onset (Solidus), °C 1440
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 26
41
Thermal Expansion, µm/m-K 11
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 4.2
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
1.9
Density, g/cm3 7.9
7.6
Embodied Carbon, kg CO2/kg material 2.8
1.5
Embodied Energy, MJ/kg 40
20
Embodied Water, L/kg 90
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
6.8 to 30
Resilience: Unit (Modulus of Resilience), kJ/m3 680
130 to 950
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
13 to 26
Strength to Weight: Bending, points 23
14 to 24
Thermal Diffusivity, mm2/s 7.0
11
Thermal Shock Resistance, points 25
9.9 to 21

Alloy Composition

Aluminum (Al), % 0 to 0.040
0
Boron (B), % 0.00050 to 0.0050
0
Carbon (C), % 0.090 to 0.13
2.2 to 2.9
Chromium (Cr), % 8.5 to 9.5
0
Iron (Fe), % 86.2 to 88.8
93.6 to 96.7
Manganese (Mn), % 0.3 to 0.6
0.15 to 1.3
Molybdenum (Mo), % 0.9 to 1.1
0
Nickel (Ni), % 0.1 to 0.4
0
Niobium (Nb), % 0.060 to 0.1
0
Nitrogen (N), % 0.050 to 0.090
0
Phosphorus (P), % 0 to 0.020
0.020 to 0.15
Silicon (Si), % 0.1 to 0.5
0.9 to 1.9
Sulfur (S), % 0 to 0.010
0.020 to 0.2
Tungsten (W), % 0.9 to 1.1
0
Vanadium (V), % 0.18 to 0.25
0