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C44400 Brass vs. S31803 Stainless Steel

C44400 brass belongs to the copper alloys classification, while S31803 stainless steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is C44400 brass and the bottom bar is S31803 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Poisson's Ratio 0.32
0.27
Shear Modulus, GPa 41
80
Tensile Strength: Ultimate (UTS), MPa 350
710
Tensile Strength: Yield (Proof), MPa 120
500

Thermal Properties

Latent Heat of Fusion, J/g 180
300
Maximum Temperature: Mechanical, °C 140
1060
Melting Completion (Liquidus), °C 940
1450
Melting Onset (Solidus), °C 900
1400
Specific Heat Capacity, J/kg-K 380
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 27
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 26
17
Density, g/cm3 8.3
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: Unit (Modulus of Resilience), kJ/m3 65
630
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 12
25
Strength to Weight: Bending, points 13
23
Thermal Diffusivity, mm2/s 35
4.3
Thermal Shock Resistance, points 12
20

Alloy Composition

Antimony (Sb), % 0.020 to 0.1
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
21 to 23
Copper (Cu), % 70 to 73
0
Iron (Fe), % 0 to 0.060
63.7 to 71.9
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 0
4.5 to 6.5
Nitrogen (N), % 0
0.080 to 0.2
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 0.9 to 1.2
0
Zinc (Zn), % 25.2 to 29.1
0
Residuals, % 0 to 0.4
0