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SAE-AISI 8637 Steel vs. C68100 Brass

SAE-AISI 8637 steel belongs to the iron alloys classification, while C68100 brass belongs to the copper alloys. There are 28 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 SAE-AISI 8637 steel and the bottom bar is C68100 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
100
Elongation at Break, % 23
29
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 73
40
Tensile Strength: Ultimate (UTS), MPa 540
380
Tensile Strength: Yield (Proof), MPa 360
140

Thermal Properties

Latent Heat of Fusion, J/g 250
170
Maximum Temperature: Mechanical, °C 410
120
Melting Completion (Liquidus), °C 1460
890
Melting Onset (Solidus), °C 1420
870
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 38
98
Thermal Expansion, µm/m-K 11
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
24
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
27

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
23
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.5
2.8
Embodied Energy, MJ/kg 20
47
Embodied Water, L/kg 50
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
86
Resilience: Unit (Modulus of Resilience), kJ/m3 340
94
Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 24
20
Strength to Weight: Axial, points 19
13
Strength to Weight: Bending, points 19
15
Thermal Diffusivity, mm2/s 10
32
Thermal Shock Resistance, points 18
13

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Carbon (C), % 0.35 to 0.4
0
Chromium (Cr), % 0.4 to 0.6
0
Copper (Cu), % 0
56 to 60
Iron (Fe), % 96.6 to 97.8
0.25 to 1.3
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0.75 to 1.0
0.010 to 0.5
Molybdenum (Mo), % 0.15 to 0.25
0
Nickel (Ni), % 0.4 to 0.7
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0.15 to 0.35
0.040 to 0.15
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
0.75 to 1.1
Zinc (Zn), % 0
36.4 to 43
Residuals, % 0
0 to 0.5