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C68400 Brass vs. AISI 446 Stainless Steel

C68400 brass belongs to the copper alloys classification, while AISI 446 stainless steel belongs to the iron alloys. There are 30 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 C68400 brass and the bottom bar is AISI 446 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
190
Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 18
23
Poisson's Ratio 0.31
0.27
Shear Modulus, GPa 41
79
Shear Strength, MPa 330
360
Tensile Strength: Ultimate (UTS), MPa 540
570
Tensile Strength: Yield (Proof), MPa 310
300

Thermal Properties

Latent Heat of Fusion, J/g 210
290
Maximum Temperature: Mechanical, °C 130
1180
Melting Completion (Liquidus), °C 840
1510
Melting Onset (Solidus), °C 820
1430
Specific Heat Capacity, J/kg-K 400
490
Thermal Conductivity, W/m-K 66
17
Thermal Expansion, µm/m-K 20
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 87
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 99
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 23
12
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 2.7
2.4
Embodied Energy, MJ/kg 47
35
Embodied Water, L/kg 320
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81
110
Resilience: Unit (Modulus of Resilience), kJ/m3 460
230
Stiffness to Weight: Axial, points 7.5
15
Stiffness to Weight: Bending, points 20
26
Strength to Weight: Axial, points 19
21
Strength to Weight: Bending, points 19
20
Thermal Diffusivity, mm2/s 21
4.6
Thermal Shock Resistance, points 18
19

Alloy Composition

Aluminum (Al), % 0 to 0.5
0
Boron (B), % 0.0010 to 0.030
0
Carbon (C), % 0
0 to 0.2
Chromium (Cr), % 0
23 to 27
Copper (Cu), % 59 to 64
0
Iron (Fe), % 0 to 1.0
69.2 to 77
Lead (Pb), % 0 to 0.090
0
Manganese (Mn), % 0.2 to 1.5
0 to 1.5
Nickel (Ni), % 0 to 0.5
0 to 0.75
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0.030 to 0.3
0 to 0.040
Silicon (Si), % 1.5 to 2.5
0 to 1.0
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