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C21000 Brass vs. SAE-AISI 4620 Steel

C21000 brass belongs to the copper alloys classification, while SAE-AISI 4620 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C21000 brass and the bottom bar is SAE-AISI 4620 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 2.9 to 50
16 to 27
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 43
73
Shear Strength, MPa 180 to 280
320 to 420
Tensile Strength: Ultimate (UTS), MPa 240 to 450
490 to 680
Tensile Strength: Yield (Proof), MPa 69 to 440
350 to 550

Thermal Properties

Latent Heat of Fusion, J/g 200
250
Maximum Temperature: Mechanical, °C 190
410
Melting Completion (Liquidus), °C 1070
1460
Melting Onset (Solidus), °C 1050
1420
Specific Heat Capacity, J/kg-K 390
470
Thermal Conductivity, W/m-K 230
47
Thermal Expansion, µm/m-K 18
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 56
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 57
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 30
3.2
Density, g/cm3 8.8
7.9
Embodied Carbon, kg CO2/kg material 2.6
1.6
Embodied Energy, MJ/kg 42
22
Embodied Water, L/kg 310
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13 to 100
100 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 21 to 830
330 to 800
Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 7.4 to 14
17 to 24
Strength to Weight: Bending, points 9.6 to 15
18 to 22
Thermal Diffusivity, mm2/s 69
13
Thermal Shock Resistance, points 8.1 to 15
15 to 20

Alloy Composition

Carbon (C), % 0
0.17 to 0.22
Copper (Cu), % 94 to 96
0
Iron (Fe), % 0 to 0.050
96.4 to 97.4
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0
0.45 to 0.65
Molybdenum (Mo), % 0
0.2 to 0.3
Nickel (Ni), % 0
1.7 to 2.0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040
Zinc (Zn), % 3.7 to 6.0
0
Residuals, % 0 to 0.2
0