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C68800 Brass vs. AISI 440C Stainless Steel

C68800 brass belongs to the copper alloys classification, while AISI 440C stainless steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C68800 brass and the bottom bar is AISI 440C stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 2.0 to 36
2.0 to 14
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 41
76
Shear Strength, MPa 380 to 510
430 to 1120
Tensile Strength: Ultimate (UTS), MPa 570 to 890
710 to 1970
Tensile Strength: Yield (Proof), MPa 390 to 790
450 to 1900

Thermal Properties

Latent Heat of Fusion, J/g 190
280
Maximum Temperature: Mechanical, °C 160
870
Melting Completion (Liquidus), °C 960
1480
Melting Onset (Solidus), °C 950
1370
Specific Heat Capacity, J/kg-K 400
480
Thermal Conductivity, W/m-K 40
22
Thermal Expansion, µm/m-K 19
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 18
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 20
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 26
9.0
Density, g/cm3 8.2
7.7
Embodied Carbon, kg CO2/kg material 2.8
2.2
Embodied Energy, MJ/kg 48
31
Embodied Water, L/kg 350
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16 to 180
39 to 88
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 19 to 30
26 to 71
Strength to Weight: Bending, points 19 to 25
23 to 46
Thermal Diffusivity, mm2/s 12
6.0
Thermal Shock Resistance, points 19 to 30
26 to 71

Alloy Composition

Aluminum (Al), % 3.0 to 3.8
0
Carbon (C), % 0
1.0 to 1.2
Chromium (Cr), % 0
16 to 18
Cobalt (Co), % 0.25 to 0.55
0
Copper (Cu), % 70.8 to 75.5
0
Iron (Fe), % 0 to 0.2
78 to 83.1
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.75
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Zinc (Zn), % 21.3 to 24.1
0
Residuals, % 0 to 0.5
0