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CC755S Brass vs. S43940 Stainless Steel

CC755S brass belongs to the copper alloys classification, while S43940 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is CC755S brass and the bottom bar is S43940 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110
160
Elastic (Young's, Tensile) Modulus, GPa 100
200
Elongation at Break, % 9.5
21
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 40
77
Tensile Strength: Ultimate (UTS), MPa 390
490
Tensile Strength: Yield (Proof), MPa 250
280

Thermal Properties

Latent Heat of Fusion, J/g 170
280
Maximum Temperature: Mechanical, °C 120
890
Melting Completion (Liquidus), °C 820
1440
Melting Onset (Solidus), °C 780
1400
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 120
25
Thermal Expansion, µm/m-K 21
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 30
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 23
12
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 2.7
2.6
Embodied Energy, MJ/kg 46
38
Embodied Water, L/kg 330
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 33
86
Resilience: Unit (Modulus of Resilience), kJ/m3 290
200
Stiffness to Weight: Axial, points 7.1
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 14
18
Strength to Weight: Bending, points 15
18
Thermal Diffusivity, mm2/s 38
6.8
Thermal Shock Resistance, points 13
18

Alloy Composition

Aluminum (Al), % 0.4 to 0.7
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
17.5 to 18.5
Copper (Cu), % 59.5 to 61
0
Iron (Fe), % 0.050 to 0.2
78.2 to 82.1
Lead (Pb), % 1.2 to 1.7
0
Manganese (Mn), % 0 to 0.050
0 to 1.0
Nickel (Ni), % 0 to 0.2
0
Niobium (Nb), % 0
0.3 to 0.6
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.050
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Tin (Sn), % 0 to 0.3
0
Titanium (Ti), % 0
0.1 to 0.6
Zinc (Zn), % 35.8 to 38.9
0