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ACI-ASTM CB7Cu-1 Steel vs. EN 1.7729 Steel

Both ACI-ASTM CB7Cu-1 steel and EN 1.7729 steel are iron alloys. They have 77% of their average alloy composition in common. There are 31 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 CB7Cu-1 steel and the bottom bar is EN 1.7729 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 300 to 420
270
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 5.7 to 11
17
Fatigue Strength, MPa 420 to 590
500
Impact Strength: V-Notched Charpy, J 34
46
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 960 to 1350
910
Tensile Strength: Yield (Proof), MPa 760 to 1180
750

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Melting Completion (Liquidus), °C 1430
1470
Melting Onset (Solidus), °C 1500
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
40
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 13
3.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.6
3.3
Embodied Energy, MJ/kg 38
49
Embodied Water, L/kg 130
59

Common Calculations

PREN (Pitting Resistance) 17
4.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 120
150
Resilience: Unit (Modulus of Resilience), kJ/m3 1500 to 3590
1500
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 34 to 48
32
Strength to Weight: Bending, points 28 to 35
27
Thermal Diffusivity, mm2/s 4.6
11
Thermal Shock Resistance, points 32 to 45
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 0.070
0.17 to 0.23
Chromium (Cr), % 15.5 to 17.7
0.9 to 1.2
Copper (Cu), % 2.5 to 3.2
0 to 0.2
Iron (Fe), % 72.3 to 78.4
94.8 to 97
Manganese (Mn), % 0 to 0.7
0.35 to 0.75
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 3.6 to 4.6
0 to 0.2
Niobium (Nb), % 0 to 0.35
0
Nitrogen (N), % 0 to 0.050
0
Phosphorus (P), % 0 to 0.035
0 to 0.020
Silicon (Si), % 0 to 1.0
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