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AISI 303 Stainless Steel vs. C69430 Brass

AISI 303 stainless steel belongs to the iron alloys classification, while C69430 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 303 stainless steel and the bottom bar is C69430 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 40 to 51
17
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
42
Shear Strength, MPa 430 to 470
350
Tensile Strength: Ultimate (UTS), MPa 600 to 690
570
Tensile Strength: Yield (Proof), MPa 230 to 420
280

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Maximum Temperature: Mechanical, °C 930
170
Melting Completion (Liquidus), °C 1450
920
Melting Onset (Solidus), °C 1400
820
Specific Heat Capacity, J/kg-K 480
410
Thermal Conductivity, W/m-K 16
26
Thermal Expansion, µm/m-K 17
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
6.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
6.7

Otherwise Unclassified Properties

Base Metal Price, % relative 15
27
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 3.0
2.7
Embodied Energy, MJ/kg 42
44
Embodied Water, L/kg 140
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
80
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 440
340
Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 21 to 25
19
Strength to Weight: Bending, points 20 to 22
18
Thermal Diffusivity, mm2/s 4.4
7.7
Thermal Shock Resistance, points 13 to 15
20

Alloy Composition

Arsenic (As), % 0
0.030 to 0.060
Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 0
80 to 83
Iron (Fe), % 67.3 to 74.9
0 to 0.2
Lead (Pb), % 0
0 to 0.3
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 8.0 to 10
0
Phosphorus (P), % 0 to 0.2
0
Silicon (Si), % 0 to 1.0
3.5 to 4.5
Sulfur (S), % 0.15 to 0.35
0
Zinc (Zn), % 0
11.4 to 16.5
Residuals, % 0
0 to 0.5