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ACI-ASTM CD4MCu Steel vs. EN 1.4123 Stainless Steel

Both ACI-ASTM CD4MCu steel and EN 1.4123 stainless steel are iron alloys. They have 81% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CD4MCu steel and the bottom bar is EN 1.4123 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
77
Tensile Strength: Ultimate (UTS), MPa 770
720 to 810

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 450
390
Maximum Temperature: Mechanical, °C 1100
840
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 17
23
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 18
10
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.5
4.2
Embodied Energy, MJ/kg 49
62
Embodied Water, L/kg 180
120

Common Calculations

PREN (Pitting Resistance) 32
24
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
26 to 29
Strength to Weight: Bending, points 24
23 to 25
Thermal Diffusivity, mm2/s 4.5
6.3
Thermal Shock Resistance, points 21
26 to 29

Alloy Composition

Carbon (C), % 0 to 0.040
0.35 to 0.5
Chromium (Cr), % 24.5 to 26.5
14 to 16.5
Copper (Cu), % 2.8 to 3.3
0
Iron (Fe), % 59.9 to 66.3
76.7 to 84.6
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 1.8 to 2.3
1.0 to 2.5
Nickel (Ni), % 4.8 to 6.0
0 to 0.5
Nitrogen (N), % 0
0.1 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030
Vanadium (V), % 0
0 to 1.5