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ACI-ASTM CN7M Steel vs. CC751S Brass

ACI-ASTM CN7M steel belongs to the iron alloys classification, while CC751S 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 CC751S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
130
Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 44
5.6
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 77
40
Tensile Strength: Ultimate (UTS), MPa 480
450
Tensile Strength: Yield (Proof), MPa 200
320

Thermal Properties

Latent Heat of Fusion, J/g 310
190
Maximum Temperature: Mechanical, °C 1100
130
Melting Completion (Liquidus), °C 1410
850
Melting Onset (Solidus), °C 1450
810
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 21
110
Thermal Expansion, µm/m-K 15
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
25
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
28

Otherwise Unclassified Properties

Base Metal Price, % relative 32
24
Density, g/cm3 8.1
8.1
Embodied Carbon, kg CO2/kg material 5.6
2.8
Embodied Energy, MJ/kg 78
46
Embodied Water, L/kg 210
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
23
Resilience: Unit (Modulus of Resilience), kJ/m3 110
480
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 17
15
Strength to Weight: Bending, points 17
16
Thermal Diffusivity, mm2/s 5.6
35
Thermal Shock Resistance, points 12
15

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Antimony (Sb), % 0
0 to 0.5
Carbon (C), % 0 to 0.070
0
Chromium (Cr), % 19 to 22
0
Copper (Cu), % 3.0 to 4.0
62.7 to 66
Iron (Fe), % 37.4 to 48.5
0.25 to 0.5
Lead (Pb), % 0
0.8 to 2.2
Manganese (Mn), % 0 to 1.5
0 to 0.15
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 27.5 to 30.5
0 to 0.8
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.5
0.65 to 1.1
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
0 to 0.8
Zinc (Zn), % 0
27.9 to 35.6