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ACI-ASTM CN7M Steel vs. CC755S Brass

ACI-ASTM CN7M steel belongs to the iron alloys classification, while CC755S brass belongs to the copper alloys. There are 29 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 CN7M steel and the bottom bar is CC755S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
110
Elastic (Young's, Tensile) Modulus, GPa 200
100
Elongation at Break, % 44
9.5
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 77
40
Tensile Strength: Ultimate (UTS), MPa 480
390
Tensile Strength: Yield (Proof), MPa 200
250

Thermal Properties

Latent Heat of Fusion, J/g 310
170
Maximum Temperature: Mechanical, °C 1100
120
Melting Completion (Liquidus), °C 1410
820
Melting Onset (Solidus), °C 1450
780
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 21
120
Thermal Expansion, µm/m-K 15
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
27
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
30

Otherwise Unclassified Properties

Base Metal Price, % relative 32
23
Density, g/cm3 8.1
8.1
Embodied Carbon, kg CO2/kg material 5.6
2.7
Embodied Energy, MJ/kg 78
46
Embodied Water, L/kg 210
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
33
Resilience: Unit (Modulus of Resilience), kJ/m3 110
290
Stiffness to Weight: Axial, points 14
7.1
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 17
14
Strength to Weight: Bending, points 17
15
Thermal Diffusivity, mm2/s 5.6
38
Thermal Shock Resistance, points 12
13

Alloy Composition

Aluminum (Al), % 0
0.4 to 0.7
Carbon (C), % 0 to 0.070
0
Chromium (Cr), % 19 to 22
0
Copper (Cu), % 3.0 to 4.0
59.5 to 61
Iron (Fe), % 37.4 to 48.5
0.050 to 0.2
Lead (Pb), % 0
1.2 to 1.7
Manganese (Mn), % 0 to 1.5
0 to 0.050
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 27.5 to 30.5
0 to 0.2
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.5
0 to 0.050
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
0 to 0.3
Zinc (Zn), % 0
35.8 to 38.9