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ACI-ASTM CD4MCu Steel vs. SAE-AISI M43 Steel

Both ACI-ASTM CD4MCu steel and SAE-AISI M43 steel are iron alloys. They have 70% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CD4MCu steel and the bottom bar is SAE-AISI M43 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
77
Tensile Strength: Ultimate (UTS), MPa 770
810 to 2290

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Melting Completion (Liquidus), °C 1430
1550
Melting Onset (Solidus), °C 1380
1500
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 17
19
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 18
33
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 3.5
8.5
Embodied Energy, MJ/kg 49
120
Embodied Water, L/kg 180
140

Common Calculations

PREN (Pitting Resistance) 32
35
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
27 to 77
Strength to Weight: Bending, points 24
24 to 47
Thermal Diffusivity, mm2/s 4.5
5.3
Thermal Shock Resistance, points 21
25 to 71

Alloy Composition

Carbon (C), % 0 to 0.040
1.2 to 1.3
Chromium (Cr), % 24.5 to 26.5
3.5 to 4.3
Cobalt (Co), % 0
7.8 to 8.8
Copper (Cu), % 2.8 to 3.3
0 to 0.25
Iron (Fe), % 59.9 to 66.3
70.8 to 76
Manganese (Mn), % 0 to 1.0
0.2 to 0.4
Molybdenum (Mo), % 1.8 to 2.3
7.5 to 8.5
Nickel (Ni), % 4.8 to 6.0
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0.15 to 0.65
Sulfur (S), % 0 to 0.040
0 to 0.030
Tungsten (W), % 0
2.3 to 3.0
Vanadium (V), % 0
1.5 to 1.8