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ACI-ASTM CN7M Steel vs. CC761S Brass

ACI-ASTM CN7M steel belongs to the iron alloys classification, while CC761S 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 CC761S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
150
Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 44
8.7
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
42
Tensile Strength: Ultimate (UTS), MPa 480
540
Tensile Strength: Yield (Proof), MPa 200
340

Thermal Properties

Latent Heat of Fusion, J/g 310
260
Maximum Temperature: Mechanical, °C 1100
170
Melting Completion (Liquidus), °C 1410
960
Melting Onset (Solidus), °C 1450
910
Specific Heat Capacity, J/kg-K 470
410
Thermal Conductivity, W/m-K 21
27
Thermal Expansion, µm/m-K 15
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
40
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
43

Otherwise Unclassified Properties

Base Metal Price, % relative 32
27
Density, g/cm3 8.1
8.3
Embodied Carbon, kg CO2/kg material 5.6
2.7
Embodied Energy, MJ/kg 78
45
Embodied Water, L/kg 210
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
41
Resilience: Unit (Modulus of Resilience), kJ/m3 110
530
Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 17
18
Strength to Weight: Bending, points 17
18
Thermal Diffusivity, mm2/s 5.6
8.0
Thermal Shock Resistance, points 12
19

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Antimony (Sb), % 0
0 to 0.050
Carbon (C), % 0 to 0.070
0
Chromium (Cr), % 19 to 22
0
Copper (Cu), % 3.0 to 4.0
78 to 83
Iron (Fe), % 37.4 to 48.5
0 to 0.6
Lead (Pb), % 0
0 to 0.8
Manganese (Mn), % 0 to 1.5
0 to 0.2
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 27.5 to 30.5
0 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.5
3.0 to 5.0
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
0 to 0.3
Zinc (Zn), % 0
8.9 to 19