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ACI-ASTM CH20 Steel vs. C99700 Brass

ACI-ASTM CH20 steel belongs to the iron alloys classification, while C99700 brass belongs to the copper alloys. There are 26 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 C99700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 38
25
Poisson's Ratio 0.27
0.32
Shear Modulus, GPa 78
46
Tensile Strength: Ultimate (UTS), MPa 610
380
Tensile Strength: Yield (Proof), MPa 350
170

Thermal Properties

Latent Heat of Fusion, J/g 310
200
Maximum Temperature: Mechanical, °C 1100
160
Melting Completion (Liquidus), °C 1410
900
Melting Onset (Solidus), °C 1430
880
Specific Heat Capacity, J/kg-K 480
410
Thermal Expansion, µm/m-K 15
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 20
25
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 3.7
3.3
Embodied Energy, MJ/kg 53
53
Embodied Water, L/kg 180
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
78
Resilience: Unit (Modulus of Resilience), kJ/m3 300
120
Stiffness to Weight: Axial, points 14
8.3
Stiffness to Weight: Bending, points 25
20
Strength to Weight: Axial, points 22
13
Strength to Weight: Bending, points 21
14
Thermal Shock Resistance, points 15
11

Alloy Composition

Aluminum (Al), % 0
0.5 to 3.0
Carbon (C), % 0 to 0.2
0
Chromium (Cr), % 22 to 26
0
Copper (Cu), % 0
54 to 65.5
Iron (Fe), % 54.7 to 66
0 to 1.0
Lead (Pb), % 0
0 to 2.0
Manganese (Mn), % 0 to 1.5
11 to 15
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 12 to 15
4.0 to 6.0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 2.0
0
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
0 to 1.0
Zinc (Zn), % 0
19 to 25
Residuals, % 0
0 to 0.3