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C27200 Brass vs. S20431 Stainless Steel

C27200 brass belongs to the copper alloys classification, while S20431 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C27200 brass and the bottom bar is S20431 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 10 to 50
46
Poisson's Ratio 0.31
0.28
Rockwell B Hardness 53 to 86
86
Shear Modulus, GPa 40
76
Shear Strength, MPa 230 to 320
500
Tensile Strength: Ultimate (UTS), MPa 370 to 590
710
Tensile Strength: Yield (Proof), MPa 150 to 410
350

Thermal Properties

Latent Heat of Fusion, J/g 170
280
Maximum Temperature: Mechanical, °C 130
890
Melting Completion (Liquidus), °C 920
1400
Melting Onset (Solidus), °C 870
1360
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 120
15
Thermal Expansion, µm/m-K 20
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 31
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 24
12
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 2.7
2.5
Embodied Energy, MJ/kg 45
36
Embodied Water, L/kg 320
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30 to 270
270
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 810
310
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 13 to 20
25
Strength to Weight: Bending, points 14 to 19
23
Thermal Diffusivity, mm2/s 37
4.0
Thermal Shock Resistance, points 12 to 20
15

Alloy Composition

Carbon (C), % 0
0 to 0.12
Chromium (Cr), % 0
17 to 18
Copper (Cu), % 62 to 65
1.5 to 3.5
Iron (Fe), % 0 to 0.070
66.1 to 74.4
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
5.0 to 7.0
Nickel (Ni), % 0
2.0 to 4.0
Nitrogen (N), % 0
0.1 to 0.25
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 34.6 to 38
0
Residuals, % 0 to 0.3
0