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ACI-ASTM CD3MWCuN Steel vs. EN 1.7709 Steel

Both ACI-ASTM CD3MWCuN steel and EN 1.7709 steel are iron alloys. They have 64% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CD3MWCuN steel and the bottom bar is EN 1.7709 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 790
650 to 780

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
440
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
33
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 22
3.4
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.2
2.3
Embodied Energy, MJ/kg 58
32
Embodied Water, L/kg 180
56

Common Calculations

PREN (Pitting Resistance) 42
3.6
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
23 to 27
Strength to Weight: Bending, points 24
21 to 24
Thermal Diffusivity, mm2/s 4.2
8.9
Thermal Shock Resistance, points 22
22 to 26

Alloy Composition

Aluminum (Al), % 0
0 to 0.030
Carbon (C), % 0 to 0.030
0.17 to 0.25
Chromium (Cr), % 24 to 26
1.2 to 1.5
Copper (Cu), % 0.5 to 1.0
0
Iron (Fe), % 56.6 to 65.3
95.2 to 97.5
Manganese (Mn), % 0 to 1.5
0.4 to 0.8
Molybdenum (Mo), % 3.0 to 4.0
0.55 to 0.8
Nickel (Ni), % 6.5 to 8.5
0 to 0.6
Nitrogen (N), % 0.2 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.025
0 to 0.030
Tungsten (W), % 0.5 to 1.0
0
Vanadium (V), % 0
0.2 to 0.35