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EN 1.4729 Stainless Steel vs. Automotive Grey Cast Iron

Both EN 1.4729 stainless steel and automotive grey cast iron are iron alloys. There are 21 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 EN 1.4729 stainless steel and the bottom bar is automotive grey cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
160 to 280
Elastic (Young's, Tensile) Modulus, GPa 190
180
Elongation at Break, % 15
9.6 to 14
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
69 to 70

Thermal Properties

Latent Heat of Fusion, J/g 300
260 to 280
Melting Completion (Liquidus), °C 1420
1380 to 1390
Melting Onset (Solidus), °C 1380
1340 to 1350
Specific Heat Capacity, J/kg-K 490
490
Thermal Conductivity, W/m-K 24
41 to 43
Thermal Expansion, µm/m-K 10
12 to 14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
7.4 to 7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.8 to 9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
1.9 to 3.0
Density, g/cm3 7.6
7.5 to 7.6
Embodied Carbon, kg CO2/kg material 2.1
1.5 to 1.7
Embodied Energy, MJ/kg 29
21 to 24
Embodied Water, L/kg 100
44 to 51

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Thermal Diffusivity, mm2/s 6.5
11 to 12