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SAE-AISI 81B45 Steel vs. CC752S Brass

SAE-AISI 81B45 steel belongs to the iron alloys classification, while CC752S 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 CC752S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 200
100
Elastic (Young's, Tensile) Modulus, GPa 190
100
Elongation at Break, % 12 to 24
8.4
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 73
40
Tensile Strength: Ultimate (UTS), MPa 540 to 670
350
Tensile Strength: Yield (Proof), MPa 350 to 560
190

Thermal Properties

Latent Heat of Fusion, J/g 250
170
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
380
Thermal Conductivity, W/m-K 40
110
Thermal Expansion, µm/m-K 12
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
25
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
28

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
24
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 1.5
2.7
Embodied Energy, MJ/kg 20
46
Embodied Water, L/kg 49
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 110
25
Resilience: Unit (Modulus of Resilience), kJ/m3 320 to 840
180
Stiffness to Weight: Axial, points 13
7.1
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 19 to 24
12
Strength to Weight: Bending, points 19 to 22
13
Thermal Diffusivity, mm2/s 11
35
Thermal Shock Resistance, points 17 to 21
12

Alloy Composition

Aluminum (Al), % 0
0.3 to 0.7
Antimony (Sb), % 0
0 to 0.14
Arsenic (As), % 0
0.040 to 0.14
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
61.5 to 64.5
Iron (Fe), % 97 to 98
0 to 0.3
Lead (Pb), % 0
1.5 to 2.2
Manganese (Mn), % 0.75 to 1.0
0 to 0.1
Molybdenum (Mo), % 0.080 to 0.15
0
Nickel (Ni), % 0.2 to 0.4
0 to 0.2
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0.15 to 0.35
0 to 0.020
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
0 to 0.3
Zinc (Zn), % 0
31.5 to 36.7