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C87800 Brass vs. AISI 420 Stainless Steel

C87800 brass belongs to the copper alloys classification, while AISI 420 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 C87800 brass and the bottom bar is AISI 420 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 25
8.0 to 15
Poisson's Ratio 0.33
0.28
Rockwell B Hardness 86
84
Shear Modulus, GPa 42
76
Tensile Strength: Ultimate (UTS), MPa 590
690 to 1720
Tensile Strength: Yield (Proof), MPa 350
380 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 260
280
Maximum Temperature: Mechanical, °C 170
620
Melting Completion (Liquidus), °C 920
1510
Melting Onset (Solidus), °C 820
1450
Specific Heat Capacity, J/kg-K 410
480
Thermal Conductivity, W/m-K 28
27
Thermal Expansion, µm/m-K 18
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.7
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 27
7.5
Density, g/cm3 8.3
7.7
Embodied Carbon, kg CO2/kg material 2.7
2.0
Embodied Energy, MJ/kg 44
28
Embodied Water, L/kg 300
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
88 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 540
380 to 4410
Stiffness to Weight: Axial, points 7.4
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 20
25 to 62
Strength to Weight: Bending, points 19
22 to 41
Thermal Diffusivity, mm2/s 8.3
7.3
Thermal Shock Resistance, points 21
25 to 62

Alloy Composition

Aluminum (Al), % 0 to 0.15
0
Antimony (Sb), % 0 to 0.050
0
Arsenic (As), % 0 to 0.050
0
Carbon (C), % 0
0.15 to 0.4
Chromium (Cr), % 0
12 to 14
Copper (Cu), % 80 to 84.2
0
Iron (Fe), % 0 to 0.15
82.3 to 87.9
Lead (Pb), % 0 to 0.15
0
Magnesium (Mg), % 0 to 0.010
0
Manganese (Mn), % 0 to 0.15
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.2
0 to 0.75
Phosphorus (P), % 0 to 0.010
0 to 0.040
Silicon (Si), % 3.8 to 4.2
0 to 1.0
Sulfur (S), % 0 to 0.050
0 to 0.030
Tin (Sn), % 0 to 0.25
0
Zinc (Zn), % 12 to 16
0
Residuals, % 0 to 0.5
0