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C49300 Brass vs. SAE-AISI 4340M Steel

C49300 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 C49300 brass and the bottom bar is SAE-AISI 4340M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
190
Elongation at Break, % 4.5 to 20
6.0
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 40
72
Shear Strength, MPa 270 to 290
1360
Tensile Strength: Ultimate (UTS), MPa 430 to 520
2340
Tensile Strength: Yield (Proof), MPa 210 to 410
1240

Thermal Properties

Latent Heat of Fusion, J/g 170
280
Maximum Temperature: Mechanical, °C 120
430
Melting Completion (Liquidus), °C 880
1440
Melting Onset (Solidus), °C 840
1400
Specific Heat Capacity, J/kg-K 380
480
Thermal Conductivity, W/m-K 88
38
Thermal Expansion, µm/m-K 20
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 17
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 26
3.9
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 3.0
1.9
Embodied Energy, MJ/kg 50
26
Embodied Water, L/kg 370
55

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21 to 71
120
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 800
4120
Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 15 to 18
84
Strength to Weight: Bending, points 16 to 18
51
Thermal Diffusivity, mm2/s 29
10
Thermal Shock Resistance, points 14 to 18
70

Alloy Composition

Aluminum (Al), % 0 to 0.5
0
Antimony (Sb), % 0 to 0.5
0
Bismuth (Bi), % 0.5 to 2.0
0
Carbon (C), % 0
0.38 to 0.43
Chromium (Cr), % 0
0.7 to 1.0
Copper (Cu), % 58 to 62
0
Iron (Fe), % 0 to 0.1
93.3 to 94.8
Lead (Pb), % 0 to 0.010
0
Manganese (Mn), % 0 to 0.030
0.65 to 0.9
Molybdenum (Mo), % 0
0.35 to 0.45
Nickel (Ni), % 0 to 1.5
1.7 to 2.0
Phosphorus (P), % 0 to 0.2
0 to 0.012
Selenium (Se), % 0 to 0.2
0
Silicon (Si), % 0 to 0.1
1.5 to 1.8
Sulfur (S), % 0
0 to 0.012
Tin (Sn), % 1.0 to 1.8
0
Vanadium (V), % 0
0.050 to 0.1
Zinc (Zn), % 30.6 to 40.5
0
Residuals, % 0 to 0.5
0