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ACI-ASTM CH20 Steel vs. C99750 Brass

ACI-ASTM CH20 steel belongs to the iron alloys classification, while C99750 brass belongs to the copper alloys. There are 27 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 ACI-ASTM CH20 steel and the bottom bar is C99750 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
110 to 120
Elastic (Young's, Tensile) Modulus, GPa 200
130
Elongation at Break, % 38
20 to 30
Poisson's Ratio 0.27
0.32
Shear Modulus, GPa 78
48
Tensile Strength: Ultimate (UTS), MPa 610
450 to 520
Tensile Strength: Yield (Proof), MPa 350
220 to 280

Thermal Properties

Latent Heat of Fusion, J/g 310
200
Maximum Temperature: Mechanical, °C 1100
160
Melting Completion (Liquidus), °C 1410
840
Melting Onset (Solidus), °C 1430
820
Specific Heat Capacity, J/kg-K 480
410
Thermal Expansion, µm/m-K 15
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 20
23
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 3.7
3.1
Embodied Energy, MJ/kg 53
51
Embodied Water, L/kg 180
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
87 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 300
190 to 300
Stiffness to Weight: Axial, points 14
8.6
Stiffness to Weight: Bending, points 25
21
Strength to Weight: Axial, points 22
15 to 18
Strength to Weight: Bending, points 21
16 to 18
Thermal Shock Resistance, points 15
13 to 15

Alloy Composition

Aluminum (Al), % 0
0.25 to 3.0
Carbon (C), % 0 to 0.2
0
Chromium (Cr), % 22 to 26
0
Copper (Cu), % 0
55 to 61
Iron (Fe), % 54.7 to 66
0 to 1.0
Lead (Pb), % 0
0.5 to 2.5
Manganese (Mn), % 0 to 1.5
17 to 23
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 12 to 15
0 to 5.0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 2.0
0
Sulfur (S), % 0 to 0.040
0
Zinc (Zn), % 0
17 to 23
Residuals, % 0
0 to 0.3