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AISI 303 Stainless Steel vs. C37100 Brass

AISI 303 stainless steel belongs to the iron alloys classification, while C37100 brass belongs to the copper 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 AISI 303 stainless steel and the bottom bar is C37100 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
100
Elongation at Break, % 40 to 51
8.0 to 40
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 77
40
Shear Strength, MPa 430 to 470
260 to 300
Tensile Strength: Ultimate (UTS), MPa 600 to 690
370 to 520
Tensile Strength: Yield (Proof), MPa 230 to 420
150 to 390

Thermal Properties

Latent Heat of Fusion, J/g 290
170
Maximum Temperature: Mechanical, °C 930
120
Melting Completion (Liquidus), °C 1450
900
Melting Onset (Solidus), °C 1400
890
Specific Heat Capacity, J/kg-K 480
380
Thermal Conductivity, W/m-K 16
120
Thermal Expansion, µm/m-K 17
21

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 15
23
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 3.0
2.7
Embodied Energy, MJ/kg 42
45
Embodied Water, L/kg 140
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
38 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 440
110 to 750
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 25
20
Strength to Weight: Axial, points 21 to 25
13 to 18
Strength to Weight: Bending, points 20 to 22
14 to 18
Thermal Diffusivity, mm2/s 4.4
39
Thermal Shock Resistance, points 13 to 15
12 to 17

Alloy Composition

Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 0
58 to 62
Iron (Fe), % 67.3 to 74.9
0 to 0.15
Lead (Pb), % 0
0.6 to 1.2
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
0
Sulfur (S), % 0.15 to 0.35
0
Zinc (Zn), % 0
36.3 to 41.4
Residuals, % 0
0 to 0.4