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ACI-ASTM CB7Cu-1 Steel vs. EN 1.7703 Steel

Both ACI-ASTM CB7Cu-1 steel and EN 1.7703 steel are iron alloys. They have 78% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, 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 1.7703 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 300 to 420
200 to 210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 5.7 to 11
20
Fatigue Strength, MPa 420 to 590
320 to 340
Impact Strength: V-Notched Charpy, J 34
46
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
74
Tensile Strength: Ultimate (UTS), MPa 960 to 1350
670 to 690
Tensile Strength: Yield (Proof), MPa 760 to 1180
460 to 500

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
39
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
4.2
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.6
2.5
Embodied Energy, MJ/kg 38
35
Embodied Water, L/kg 130
61

Common Calculations

PREN (Pitting Resistance) 17
5.6
Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 120
120 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 1500 to 3590
570 to 650
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 34 to 48
24
Strength to Weight: Bending, points 28 to 35
22
Thermal Diffusivity, mm2/s 4.6
11
Thermal Shock Resistance, points 32 to 45
19 to 20

Alloy Composition

Carbon (C), % 0 to 0.070
0.11 to 0.15
Chromium (Cr), % 15.5 to 17.7
2.0 to 2.5
Copper (Cu), % 2.5 to 3.2
0 to 0.2
Iron (Fe), % 72.3 to 78.4
94.6 to 96.4
Manganese (Mn), % 0 to 0.7
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 3.6 to 4.6
0 to 0.25
Niobium (Nb), % 0 to 0.35
0 to 0.070
Nitrogen (N), % 0 to 0.050
0 to 0.012
Phosphorus (P), % 0 to 0.035
0 to 0.015
Silicon (Si), % 0 to 1.0
0 to 0.1
Sulfur (S), % 0 to 0.030
0 to 0.0050
Titanium (Ti), % 0
0 to 0.030
Vanadium (V), % 0
0.25 to 0.35