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Austenitic Grey Cast Iron vs. SAE-AISI M6 Steel

Both austenitic grey cast iron and SAE-AISI M6 steel are iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is austenitic grey cast iron and the bottom bar is SAE-AISI M6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
200
Poisson's Ratio 0.29 to 0.3
0.29
Shear Modulus, GPa 69 to 72
77
Tensile Strength: Ultimate (UTS), MPa 150 to 230
840 to 2210

Thermal Properties

Latent Heat of Fusion, J/g 280 to 350
260
Melting Completion (Liquidus), °C 1340 to 1400
1560
Melting Onset (Solidus), °C 1290 to 1350
1510
Specific Heat Capacity, J/kg-K 470 to 490
440
Thermal Expansion, µm/m-K 13 to 14
12

Otherwise Unclassified Properties

Base Metal Price, % relative 14 to 24
39
Density, g/cm3 7.7 to 8.1
8.4
Embodied Carbon, kg CO2/kg material 3.1 to 4.7
8.0
Embodied Energy, MJ/kg 43 to 65
120
Embodied Water, L/kg 93 to 120
160

Common Calculations

PREN (Pitting Resistance) 2.0 to 5.0
28
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23 to 25
23
Strength to Weight: Axial, points 5.3 to 8.2
28 to 73
Strength to Weight: Bending, points 7.9 to 11
24 to 45
Thermal Shock Resistance, points 4.5 to 6.5
26 to 68