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ACI-ASTM CF8M Steel vs. C85400 Brass

ACI-ASTM CF8M steel belongs to the iron alloys classification, while C85400 brass belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CF8M steel and the bottom bar is C85400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
55
Elastic (Young's, Tensile) Modulus, GPa 200
100
Elongation at Break, % 50
23
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 78
40
Tensile Strength: Ultimate (UTS), MPa 540
220
Tensile Strength: Yield (Proof), MPa 290
85

Thermal Properties

Latent Heat of Fusion, J/g 300
180
Maximum Temperature: Mechanical, °C 1000
130
Melting Completion (Liquidus), °C 1440
940
Melting Onset (Solidus), °C 1400
940
Specific Heat Capacity, J/kg-K 480
380
Thermal Conductivity, W/m-K 16
89
Thermal Expansion, µm/m-K 16
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
20
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
22

Otherwise Unclassified Properties

Base Metal Price, % relative 19
25
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 3.8
2.8
Embodied Energy, MJ/kg 53
46
Embodied Water, L/kg 160
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
40
Resilience: Unit (Modulus of Resilience), kJ/m3 210
35
Stiffness to Weight: Axial, points 14
7.0
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 19
7.5
Strength to Weight: Bending, points 19
9.9
Thermal Diffusivity, mm2/s 4.3
28
Thermal Shock Resistance, points 12
7.6

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 18 to 21
0
Copper (Cu), % 0
65 to 70
Iron (Fe), % 60.3 to 71
0 to 0.7
Lead (Pb), % 0
1.5 to 3.8
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 9.0 to 12
0 to 1.0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 2.0
0 to 0.050
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
0.5 to 1.5
Zinc (Zn), % 0
24 to 32
Residuals, % 0
0 to 1.1