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AISI 304 Stainless Steel vs. C68800 Brass

AISI 304 stainless steel belongs to the iron alloys classification, while C68800 brass belongs to the copper alloys. There are 29 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 304 stainless steel and the bottom bar is C68800 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 8.0 to 43
2.0 to 36
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
41
Shear Strength, MPa 400 to 690
380 to 510
Tensile Strength: Ultimate (UTS), MPa 580 to 1180
570 to 890
Tensile Strength: Yield (Proof), MPa 230 to 860
390 to 790

Thermal Properties

Latent Heat of Fusion, J/g 290
190
Maximum Temperature: Mechanical, °C 710
160
Melting Completion (Liquidus), °C 1450
960
Melting Onset (Solidus), °C 1400
950
Specific Heat Capacity, J/kg-K 480
400
Thermal Conductivity, W/m-K 16
40
Thermal Expansion, µm/m-K 17
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
18
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
20

Otherwise Unclassified Properties

Base Metal Price, % relative 15
26
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 3.0
2.8
Embodied Energy, MJ/kg 43
48
Embodied Water, L/kg 150
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86 to 250
16 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 1870
710 to 2860
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 21 to 42
19 to 30
Strength to Weight: Bending, points 20 to 32
19 to 25
Thermal Diffusivity, mm2/s 4.2
12
Thermal Shock Resistance, points 12 to 25
19 to 30

Alloy Composition

Aluminum (Al), % 0
3.0 to 3.8
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 18 to 20
0
Cobalt (Co), % 0
0.25 to 0.55
Copper (Cu), % 0
70.8 to 75.5
Iron (Fe), % 66.5 to 74
0 to 0.2
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 8.0 to 10.5
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
21.3 to 24.1
Residuals, % 0
0 to 0.5