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AISI 420 Stainless Steel vs. C87800 Brass

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

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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