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CC767S Brass vs. SAE-AISI 4340M Steel

CC767S 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 CC767S brass and the bottom bar is SAE-AISI 4340M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 86
710
Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 34
6.0
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 40
72
Tensile Strength: Ultimate (UTS), MPa 430
2340
Tensile Strength: Yield (Proof), MPa 150
1240

Thermal Properties

Latent Heat of Fusion, J/g 180
280
Maximum Temperature: Mechanical, °C 120
430
Melting Completion (Liquidus), °C 840
1440
Melting Onset (Solidus), °C 790
1400
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 110
38
Thermal Expansion, µm/m-K 21
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 36
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 23
3.9
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 2.7
1.9
Embodied Energy, MJ/kg 47
26
Embodied Water, L/kg 330
55

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
120
Resilience: Unit (Modulus of Resilience), kJ/m3 100
4120
Stiffness to Weight: Axial, points 7.3
13
Stiffness to Weight: Bending, points 20
25
Strength to Weight: Axial, points 15
84
Strength to Weight: Bending, points 16
51
Thermal Diffusivity, mm2/s 34
10
Thermal Shock Resistance, points 14
70

Alloy Composition

Aluminum (Al), % 0.1 to 0.8
0
Carbon (C), % 0
0.38 to 0.43
Chromium (Cr), % 0
0.7 to 1.0
Copper (Cu), % 58 to 64
0
Iron (Fe), % 0 to 0.5
93.3 to 94.8
Lead (Pb), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0.65 to 0.9
Molybdenum (Mo), % 0
0.35 to 0.45
Nickel (Ni), % 0 to 1.0
1.7 to 2.0
Phosphorus (P), % 0
0 to 0.012
Silicon (Si), % 0 to 0.2
1.5 to 1.8
Sulfur (S), % 0
0 to 0.012
Tin (Sn), % 0 to 0.1
0
Vanadium (V), % 0
0.050 to 0.1
Zinc (Zn), % 32.8 to 41.9
0