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ACI-ASTM CD4MCu Steel vs. EN 1.7711 Steel

Both ACI-ASTM CD4MCu steel and EN 1.7711 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 (3, 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 1.7711 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 18
16 to 22
Fatigue Strength, MPa 340
290 to 520
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 770
690 to 930
Tensile Strength: Yield (Proof), MPa 550
400 to 800

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
430
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
33
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 18
3.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.5
2.3
Embodied Energy, MJ/kg 49
32
Embodied Water, L/kg 180
54

Common Calculations

PREN (Pitting Resistance) 32
2.9
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
130 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 760
430 to 1690
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
24 to 33
Strength to Weight: Bending, points 24
22 to 27
Thermal Diffusivity, mm2/s 4.5
8.9
Thermal Shock Resistance, points 21
24 to 32

Alloy Composition

Aluminum (Al), % 0
0 to 0.015
Carbon (C), % 0 to 0.040
0.36 to 0.44
Chromium (Cr), % 24.5 to 26.5
0.9 to 1.2
Copper (Cu), % 2.8 to 3.3
0
Iron (Fe), % 59.9 to 66.3
96 to 97.5
Manganese (Mn), % 0 to 1.0
0.45 to 0.85
Molybdenum (Mo), % 1.8 to 2.3
0.5 to 0.65
Nickel (Ni), % 4.8 to 6.0
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.040
0 to 0.030
Vanadium (V), % 0
0.25 to 0.35