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ACI-ASTM CD4MCuN Steel vs. EN 1.7715 Steel

Both ACI-ASTM CD4MCuN steel and EN 1.7715 steel are iron alloys. Both are furnished in the normalized and tempered condition. 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 (4, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CD4MCuN steel and the bottom bar is EN 1.7715 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 18
21
Fatigue Strength, MPa 340
240
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 770
540
Tensile Strength: Yield (Proof), MPa 550
340

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
420
Melting Completion (Liquidus), °C 1420
1470
Melting Onset (Solidus), °C 1380
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
40
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 18
2.9
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.5
2.2
Embodied Energy, MJ/kg 49
30
Embodied Water, L/kg 180
52

Common Calculations

PREN (Pitting Resistance) 35
2.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
99
Resilience: Unit (Modulus of Resilience), kJ/m3 760
320
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
19
Strength to Weight: Bending, points 24
19
Thermal Diffusivity, mm2/s 4.5
11
Thermal Shock Resistance, points 21
16

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Carbon (C), % 0 to 0.040
0.1 to 0.15
Chromium (Cr), % 24.5 to 26.5
0.3 to 0.6
Copper (Cu), % 2.7 to 3.3
0 to 0.3
Iron (Fe), % 59.5 to 66.3
96.5 to 98.3
Manganese (Mn), % 0 to 1.0
0.4 to 0.7
Molybdenum (Mo), % 1.7 to 2.3
0.5 to 0.7
Nickel (Ni), % 4.7 to 6.0
0 to 0.3
Nitrogen (N), % 0.1 to 0.25
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.040
0 to 0.010
Vanadium (V), % 0
0.22 to 0.28