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AISI 431 Stainless Steel vs. CC765S Brass

AISI 431 stainless steel belongs to the iron alloys classification, while CC765S 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 431 stainless steel and the bottom bar is CC765S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
130
Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 15 to 17
21
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 77
42
Tensile Strength: Ultimate (UTS), MPa 890 to 1380
540
Tensile Strength: Yield (Proof), MPa 710 to 1040
220

Thermal Properties

Latent Heat of Fusion, J/g 280
180
Maximum Temperature: Mechanical, °C 850
140
Melting Completion (Liquidus), °C 1510
860
Melting Onset (Solidus), °C 1450
820
Specific Heat Capacity, J/kg-K 480
400
Thermal Conductivity, W/m-K 26
91
Thermal Expansion, µm/m-K 12
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
30
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
34

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
24
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 2.2
3.0
Embodied Energy, MJ/kg 31
51
Embodied Water, L/kg 120
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 180
90
Resilience: Unit (Modulus of Resilience), kJ/m3 1270 to 2770
220
Stiffness to Weight: Axial, points 14
7.6
Stiffness to Weight: Bending, points 25
20
Strength to Weight: Axial, points 32 to 50
19
Strength to Weight: Bending, points 27 to 36
18
Thermal Diffusivity, mm2/s 7.0
28
Thermal Shock Resistance, points 28 to 43
17

Alloy Composition

Aluminum (Al), % 0
0.5 to 2.5
Antimony (Sb), % 0
0 to 0.080
Carbon (C), % 0 to 0.2
0
Chromium (Cr), % 15 to 17
0
Copper (Cu), % 0
51 to 65
Iron (Fe), % 78.2 to 83.8
0.5 to 2.0
Lead (Pb), % 0
0 to 0.5
Manganese (Mn), % 0 to 1.0
0.3 to 3.0
Nickel (Ni), % 1.3 to 2.5
0 to 6.0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.1
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 1.0
Zinc (Zn), % 0
19.8 to 47.7