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ACI-ASTM CN3MN Steel vs. C47940 Brass

ACI-ASTM CN3MN steel belongs to the iron alloys classification, while C47940 brass belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CN3MN steel and the bottom bar is C47940 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
100
Elongation at Break, % 39
14 to 34
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 80
40
Tensile Strength: Ultimate (UTS), MPa 620
380 to 520
Tensile Strength: Yield (Proof), MPa 300
160 to 390

Thermal Properties

Latent Heat of Fusion, J/g 310
170
Maximum Temperature: Mechanical, °C 1100
130
Melting Completion (Liquidus), °C 1460
850
Melting Onset (Solidus), °C 1410
800
Specific Heat Capacity, J/kg-K 460
380
Thermal Conductivity, W/m-K 13
110
Thermal Expansion, µm/m-K 16
20

Otherwise Unclassified Properties

Base Metal Price, % relative 33
25
Density, g/cm3 8.1
8.2
Embodied Carbon, kg CO2/kg material 6.2
2.8
Embodied Energy, MJ/kg 84
47
Embodied Water, L/kg 200
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
68 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 210
120 to 740
Stiffness to Weight: Axial, points 14
7.1
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 21
13 to 17
Strength to Weight: Bending, points 20
14 to 17
Thermal Diffusivity, mm2/s 3.4
36
Thermal Shock Resistance, points 14
13 to 17

Alloy Composition


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Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 20 to 22
0
Copper (Cu), % 0 to 0.75
63 to 66
Iron (Fe), % 41.4 to 50.3
0.1 to 1.0
Lead (Pb), % 0
1.0 to 2.0
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 6.0 to 7.0
0
Nickel (Ni), % 23.5 to 25.5
0.1 to 0.5
Nitrogen (N), % 0.18 to 0.26
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.010
0
Tin (Sn), % 0
1.2 to 2.0
Zinc (Zn), % 0
28.1 to 34.6
Residuals, % 0
0 to 0.4