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CC754S Brass vs. S20431 Stainless Steel

CC754S brass belongs to the copper alloys classification, while S20431 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 CC754S brass and the bottom bar is S20431 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 90
210
Elastic (Young's, Tensile) Modulus, GPa 100
200
Elongation at Break, % 11
46
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 40
76
Tensile Strength: Ultimate (UTS), MPa 320
710
Tensile Strength: Yield (Proof), MPa 160
350

Thermal Properties

Latent Heat of Fusion, J/g 170
280
Maximum Temperature: Mechanical, °C 120
890
Melting Completion (Liquidus), °C 830
1400
Melting Onset (Solidus), °C 780
1360
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 95
15
Thermal Expansion, µm/m-K 21
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 30
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 23
12
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 2.8
2.5
Embodied Energy, MJ/kg 47
36
Embodied Water, L/kg 330
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29
270
Resilience: Unit (Modulus of Resilience), kJ/m3 130
310
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 11
25
Strength to Weight: Bending, points 13
23
Thermal Diffusivity, mm2/s 31
4.0
Thermal Shock Resistance, points 10
15

Alloy Composition

Aluminum (Al), % 0 to 0.8
0
Carbon (C), % 0
0 to 0.12
Chromium (Cr), % 0
17 to 18
Copper (Cu), % 57 to 63
1.5 to 3.5
Iron (Fe), % 0 to 0.7
66.1 to 74.4
Lead (Pb), % 0.5 to 2.5
0
Manganese (Mn), % 0 to 0.5
5.0 to 7.0
Nickel (Ni), % 0 to 1.0
2.0 to 4.0
Nitrogen (N), % 0
0.1 to 0.25
Phosphorus (P), % 0 to 0.020
0 to 0.045
Silicon (Si), % 0 to 0.3
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 1.0
0
Zinc (Zn), % 30.2 to 42.5
0