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SAE-AISI M43 Steel vs. ACI-ASTM CA15M Steel

Both SAE-AISI M43 steel and ACI-ASTM CA15M steel are iron alloys. They have 79% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M43 steel and the bottom bar is ACI-ASTM CA15M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 810 to 2290
690

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Melting Completion (Liquidus), °C 1550
1450
Melting Onset (Solidus), °C 1500
1410
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 19
27
Thermal Expansion, µm/m-K 12
10

Otherwise Unclassified Properties

Base Metal Price, % relative 33
7.5
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 8.5
2.1
Embodied Energy, MJ/kg 120
29
Embodied Water, L/kg 140
100

Common Calculations

PREN (Pitting Resistance) 35
15
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 27 to 77
25
Strength to Weight: Bending, points 24 to 47
22
Thermal Diffusivity, mm2/s 5.3
7.2
Thermal Shock Resistance, points 25 to 71
25

Alloy Composition

Carbon (C), % 1.2 to 1.3
0 to 0.15
Chromium (Cr), % 3.5 to 4.3
11.5 to 14
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 70.8 to 76
82.1 to 88.4
Manganese (Mn), % 0.2 to 0.4
0 to 1.0
Molybdenum (Mo), % 7.5 to 8.5
0.15 to 1.0
Nickel (Ni), % 0 to 0.3
0 to 1.0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.15 to 0.65
0 to 0.65
Sulfur (S), % 0 to 0.030
0 to 0.040
Tungsten (W), % 2.3 to 3.0
0
Vanadium (V), % 1.5 to 1.8
0