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C68400 Brass vs. AISI 415 Stainless Steel

C68400 brass belongs to the copper alloys classification, while AISI 415 stainless steel belongs to the iron alloys. There are 30 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 C68400 brass and the bottom bar is AISI 415 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
260
Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 18
17
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 41
76
Shear Strength, MPa 330
550
Tensile Strength: Ultimate (UTS), MPa 540
900
Tensile Strength: Yield (Proof), MPa 310
700

Thermal Properties

Latent Heat of Fusion, J/g 210
270
Maximum Temperature: Mechanical, °C 130
780
Melting Completion (Liquidus), °C 840
1450
Melting Onset (Solidus), °C 820
1400
Specific Heat Capacity, J/kg-K 400
480
Thermal Conductivity, W/m-K 66
24
Thermal Expansion, µm/m-K 20
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 87
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 99
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 23
11
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.7
2.5
Embodied Energy, MJ/kg 47
35
Embodied Water, L/kg 320
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81
140
Resilience: Unit (Modulus of Resilience), kJ/m3 460
1250
Stiffness to Weight: Axial, points 7.5
14
Stiffness to Weight: Bending, points 20
25
Strength to Weight: Axial, points 19
32
Strength to Weight: Bending, points 19
26
Thermal Diffusivity, mm2/s 21
6.4
Thermal Shock Resistance, points 18
33

Alloy Composition

Aluminum (Al), % 0 to 0.5
0
Boron (B), % 0.0010 to 0.030
0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
11.5 to 14
Copper (Cu), % 59 to 64
0
Iron (Fe), % 0 to 1.0
77.8 to 84
Lead (Pb), % 0 to 0.090
0
Manganese (Mn), % 0.2 to 1.5
0.5 to 1.0
Molybdenum (Mo), % 0
0.5 to 1.0
Nickel (Ni), % 0 to 0.5
3.5 to 5.5
Phosphorus (P), % 0.030 to 0.3
0 to 0.030
Silicon (Si), % 1.5 to 2.5
0 to 0.6
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.5
0
Zinc (Zn), % 28.6 to 39.3
0
Residuals, % 0 to 0.5
0