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C87900 Brass vs. ACI-ASTM CN7M Steel

C87900 brass belongs to the copper alloys classification, while ACI-ASTM CN7M steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C87900 brass and the bottom bar is ACI-ASTM CN7M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 25
44
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 41
77
Tensile Strength: Ultimate (UTS), MPa 480
480
Tensile Strength: Yield (Proof), MPa 240
200

Thermal Properties

Latent Heat of Fusion, J/g 190
310
Maximum Temperature: Mechanical, °C 130
1100
Melting Completion (Liquidus), °C 930
1410
Melting Onset (Solidus), °C 900
1450
Specific Heat Capacity, J/kg-K 390
470
Thermal Conductivity, W/m-K 120
21
Thermal Expansion, µm/m-K 20
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 17
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 24
32
Density, g/cm3 8.1
8.1
Embodied Carbon, kg CO2/kg material 2.7
5.6
Embodied Energy, MJ/kg 46
78
Embodied Water, L/kg 320
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
170
Resilience: Unit (Modulus of Resilience), kJ/m3 270
110
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 20
24
Strength to Weight: Axial, points 17
17
Strength to Weight: Bending, points 17
17
Thermal Diffusivity, mm2/s 37
5.6
Thermal Shock Resistance, points 16
12

Alloy Composition

Aluminum (Al), % 0 to 0.15
0
Antimony (Sb), % 0 to 0.050
0
Arsenic (As), % 0 to 0.050
0
Carbon (C), % 0
0 to 0.070
Chromium (Cr), % 0
19 to 22
Copper (Cu), % 63 to 69.2
3.0 to 4.0
Iron (Fe), % 0 to 0.4
37.4 to 48.5
Lead (Pb), % 0 to 0.25
0
Manganese (Mn), % 0 to 0.15
0 to 1.5
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0 to 0.5
27.5 to 30.5
Phosphorus (P), % 0 to 0.010
0 to 0.040
Silicon (Si), % 0.8 to 1.2
0 to 1.5
Sulfur (S), % 0 to 0.050
0 to 0.040
Tin (Sn), % 0 to 0.25
0
Zinc (Zn), % 30 to 36
0