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C84000 Brass vs. SAE-AISI 4340M Steel

C84000 brass belongs to the copper alloys classification, while SAE-AISI 4340M steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C84000 brass and the bottom bar is SAE-AISI 4340M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 65
710
Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 27
6.0
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 42
72
Tensile Strength: Ultimate (UTS), MPa 250
2340
Tensile Strength: Yield (Proof), MPa 140
1240

Thermal Properties

Latent Heat of Fusion, J/g 190
280
Maximum Temperature: Mechanical, °C 170
430
Melting Completion (Liquidus), °C 1040
1440
Melting Onset (Solidus), °C 940
1400
Specific Heat Capacity, J/kg-K 380
480
Thermal Conductivity, W/m-K 72
38
Thermal Expansion, µm/m-K 18
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 17
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 30
3.9
Density, g/cm3 8.6
7.8
Embodied Carbon, kg CO2/kg material 3.0
1.9
Embodied Energy, MJ/kg 49
26
Embodied Water, L/kg 330
55

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 58
120
Resilience: Unit (Modulus of Resilience), kJ/m3 83
4120
Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 8.2
84
Strength to Weight: Bending, points 10
51
Thermal Diffusivity, mm2/s 22
10
Thermal Shock Resistance, points 9.0
70

Alloy Composition


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Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.020
0
Boron (B), % 0 to 0.1
0
Carbon (C), % 0
0.38 to 0.43
Chromium (Cr), % 0
0.7 to 1.0
Copper (Cu), % 82 to 89
0
Iron (Fe), % 0 to 0.4
93.3 to 94.8
Lead (Pb), % 0 to 0.090
0
Manganese (Mn), % 0 to 0.010
0.65 to 0.9
Molybdenum (Mo), % 0
0.35 to 0.45
Nickel (Ni), % 0.5 to 2.0
1.7 to 2.0
Phosphorus (P), % 0 to 0.050
0 to 0.012
Silicon (Si), % 0 to 0.0050
1.5 to 1.8
Sulfur (S), % 0.1 to 0.65
0 to 0.012
Tin (Sn), % 2.0 to 4.0
0
Vanadium (V), % 0
0.050 to 0.1
Zinc (Zn), % 5.0 to 14
0
Zirconium (Zr), % 0 to 0.1
0
Residuals, % 0 to 0.7
0