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SAE-AISI M43 Steel vs. Austenitic Grey Cast Iron

Both SAE-AISI M43 steel and austenitic grey cast iron 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 SAE-AISI M43 steel and the bottom bar is austenitic grey cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
180
Poisson's Ratio 0.29
0.29 to 0.3
Shear Modulus, GPa 77
69 to 72
Tensile Strength: Ultimate (UTS), MPa 810 to 2290
150 to 230

Thermal Properties

Latent Heat of Fusion, J/g 270
280 to 350
Melting Completion (Liquidus), °C 1550
1340 to 1400
Melting Onset (Solidus), °C 1500
1290 to 1350
Specific Heat Capacity, J/kg-K 450
470 to 490
Thermal Expansion, µm/m-K 12
13 to 14

Otherwise Unclassified Properties

Base Metal Price, % relative 33
14 to 24
Density, g/cm3 8.2
7.7 to 8.1
Embodied Carbon, kg CO2/kg material 8.5
3.1 to 4.7
Embodied Energy, MJ/kg 120
43 to 65
Embodied Water, L/kg 140
93 to 120

Common Calculations

PREN (Pitting Resistance) 35
2.0 to 5.0
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
23 to 25
Strength to Weight: Axial, points 27 to 77
5.3 to 8.2
Strength to Weight: Bending, points 24 to 47
7.9 to 11
Thermal Shock Resistance, points 25 to 71
4.5 to 6.5