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CC751S Brass vs. S31803 Stainless Steel

CC751S brass belongs to the copper alloys classification, while S31803 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is CC751S brass and the bottom bar is S31803 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130
260
Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 5.6
29
Poisson's Ratio 0.31
0.27
Shear Modulus, GPa 40
80
Tensile Strength: Ultimate (UTS), MPa 450
710
Tensile Strength: Yield (Proof), MPa 320
500

Thermal Properties

Latent Heat of Fusion, J/g 190
300
Maximum Temperature: Mechanical, °C 130
1060
Melting Completion (Liquidus), °C 850
1450
Melting Onset (Solidus), °C 810
1400
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 110
16
Thermal Expansion, µm/m-K 20
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 28
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 24
17
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 2.8
3.6
Embodied Energy, MJ/kg 46
49
Embodied Water, L/kg 330
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23
180
Resilience: Unit (Modulus of Resilience), kJ/m3 480
630
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 15
25
Strength to Weight: Bending, points 16
23
Thermal Diffusivity, mm2/s 35
4.3
Thermal Shock Resistance, points 15
20

Alloy Composition

Aluminum (Al), % 0 to 0.1
0
Antimony (Sb), % 0 to 0.5
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
21 to 23
Copper (Cu), % 62.7 to 66
0
Iron (Fe), % 0.25 to 0.5
63.7 to 71.9
Lead (Pb), % 0.8 to 2.2
0
Manganese (Mn), % 0 to 0.15
0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 0 to 0.8
4.5 to 6.5
Nitrogen (N), % 0
0.080 to 0.2
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0.65 to 1.1
0 to 1.0
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 0 to 0.8
0
Zinc (Zn), % 27.9 to 35.6
0