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ACI-ASTM CD3MCuN Steel vs. EN 1.7729 Steel

Both ACI-ASTM CD3MCuN steel and EN 1.7729 steel are iron alloys. They have 65% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CD3MCuN steel and the bottom bar is EN 1.7729 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 29
17
Fatigue Strength, MPa 370
500
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 790
910
Tensile Strength: Yield (Proof), MPa 500
750

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
430
Melting Completion (Liquidus), °C 1440
1470
Melting Onset (Solidus), °C 1390
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
40
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 20
3.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.9
3.3
Embodied Energy, MJ/kg 54
49
Embodied Water, L/kg 180
59

Common Calculations

PREN (Pitting Resistance) 41
4.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
150
Resilience: Unit (Modulus of Resilience), kJ/m3 620
1500
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
32
Strength to Weight: Bending, points 24
27
Thermal Diffusivity, mm2/s 4.1
11
Thermal Shock Resistance, points 22
27

Alloy Composition

Aluminum (Al), % 0
0.015 to 0.080
Arsenic (As), % 0
0 to 0.020
Boron (B), % 0
0.0010 to 0.010
Carbon (C), % 0 to 0.030
0.17 to 0.23
Chromium (Cr), % 24 to 26.7
0.9 to 1.2
Copper (Cu), % 1.4 to 1.9
0 to 0.2
Iron (Fe), % 58.2 to 65.9
94.8 to 97
Manganese (Mn), % 0 to 1.2
0.35 to 0.75
Molybdenum (Mo), % 2.9 to 3.8
0.9 to 1.1
Nickel (Ni), % 5.6 to 6.7
0 to 0.2
Nitrogen (N), % 0.22 to 0.33
0
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0 to 1.1
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.015
Tin (Sn), % 0
0 to 0.020
Titanium (Ti), % 0
0.070 to 0.15
Vanadium (V), % 0
0.6 to 0.8