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AISI 303 Stainless Steel vs. C68100 Brass

AISI 303 stainless steel belongs to the iron alloys classification, while C68100 brass belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is AISI 303 stainless steel and the bottom bar is C68100 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
100
Elongation at Break, % 40 to 51
29
Poisson's Ratio 0.28
0.3
Shear Modulus, GPa 77
40
Tensile Strength: Ultimate (UTS), MPa 600 to 690
380
Tensile Strength: Yield (Proof), MPa 230 to 420
140

Thermal Properties

Latent Heat of Fusion, J/g 290
170
Maximum Temperature: Mechanical, °C 930
120
Melting Completion (Liquidus), °C 1450
890
Melting Onset (Solidus), °C 1400
870
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 16
98
Thermal Expansion, µm/m-K 17
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
24
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
27

Otherwise Unclassified Properties

Base Metal Price, % relative 15
23
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.0
2.8
Embodied Energy, MJ/kg 42
47
Embodied Water, L/kg 140
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
86
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 440
94
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 25
20
Strength to Weight: Axial, points 21 to 25
13
Strength to Weight: Bending, points 20 to 22
15
Thermal Diffusivity, mm2/s 4.4
32
Thermal Shock Resistance, points 13 to 15
13

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 0
56 to 60
Iron (Fe), % 67.3 to 74.9
0.25 to 1.3
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0 to 2.0
0.010 to 0.5
Nickel (Ni), % 8.0 to 10
0
Phosphorus (P), % 0 to 0.2
0
Silicon (Si), % 0 to 1.0
0.040 to 0.15
Sulfur (S), % 0.15 to 0.35
0
Tin (Sn), % 0
0.75 to 1.1
Zinc (Zn), % 0
36.4 to 43
Residuals, % 0
0 to 0.5