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C99400 Brass vs. ACI-ASTM CH20 Steel

C99400 brass belongs to the copper alloys classification, while ACI-ASTM CH20 steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is C99400 brass and the bottom bar is ACI-ASTM CH20 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Poisson's Ratio 0.34
0.27
Shear Modulus, GPa 44
78
Tensile Strength: Ultimate (UTS), MPa 460 to 550
610
Tensile Strength: Yield (Proof), MPa 230 to 370
350

Thermal Properties

Latent Heat of Fusion, J/g 230
310
Maximum Temperature: Mechanical, °C 200
1100
Melting Completion (Liquidus), °C 1070
1410
Melting Onset (Solidus), °C 1020
1430
Specific Heat Capacity, J/kg-K 400
480
Thermal Expansion, µm/m-K 17
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 17
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 30
20
Density, g/cm3 8.7
7.8
Embodied Carbon, kg CO2/kg material 2.8
3.7
Embodied Energy, MJ/kg 45
53
Embodied Water, L/kg 310
180

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 230 to 590
300
Stiffness to Weight: Axial, points 7.5
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 15 to 17
22
Strength to Weight: Bending, points 15 to 17
21
Thermal Shock Resistance, points 16 to 19
15

Alloy Composition

Aluminum (Al), % 0.5 to 2.0
0
Carbon (C), % 0
0 to 0.2
Chromium (Cr), % 0
22 to 26
Copper (Cu), % 83.5 to 96.5
0
Iron (Fe), % 1.0 to 3.0
54.7 to 66
Lead (Pb), % 0 to 0.25
0
Manganese (Mn), % 0 to 0.5
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 1.0 to 3.5
12 to 15
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0.5 to 2.0
0 to 2.0
Sulfur (S), % 0
0 to 0.040
Zinc (Zn), % 0.5 to 5.0
0
Residuals, % 0 to 0.3
0