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SAE-AISI 81B45 Steel vs. CC766S Brass

SAE-AISI 81B45 steel belongs to the iron alloys classification, while CC766S brass belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 81B45 steel and the bottom bar is CC766S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 200
120
Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 12 to 24
28
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 73
40
Tensile Strength: Ultimate (UTS), MPa 540 to 670
500
Tensile Strength: Yield (Proof), MPa 350 to 560
190

Thermal Properties

Latent Heat of Fusion, J/g 250
180
Maximum Temperature: Mechanical, °C 410
130
Melting Completion (Liquidus), °C 1460
840
Melting Onset (Solidus), °C 1420
800
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 40
89
Thermal Expansion, µm/m-K 12
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
32
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
36

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
24
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 1.5
2.8
Embodied Energy, MJ/kg 20
48
Embodied Water, L/kg 49
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 320 to 840
180
Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 24
20
Strength to Weight: Axial, points 19 to 24
17
Strength to Weight: Bending, points 19 to 22
18
Thermal Diffusivity, mm2/s 11
28
Thermal Shock Resistance, points 17 to 21
17

Alloy Composition

Aluminum (Al), % 0
0.3 to 1.8
Antimony (Sb), % 0
0 to 0.1
Boron (B), % 0.00050 to 0.0030
0
Carbon (C), % 0.43 to 0.48
0
Chromium (Cr), % 0.35 to 0.55
0
Copper (Cu), % 0
58 to 64
Iron (Fe), % 97 to 98
0 to 0.5
Lead (Pb), % 0
0 to 0.5
Manganese (Mn), % 0.75 to 1.0
0 to 0.5
Molybdenum (Mo), % 0.080 to 0.15
0
Nickel (Ni), % 0.2 to 0.4
0 to 2.0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0.15 to 0.35
0 to 0.6
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
0 to 0.5
Zinc (Zn), % 0
29.5 to 41.7