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AWS E308 vs. C68700 Brass

AWS E308 belongs to the iron alloys classification, while C68700 brass belongs to the copper alloys. There are 23 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 AWS E308 and the bottom bar is C68700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 78
41
Tensile Strength: Ultimate (UTS), MPa 620
390

Thermal Properties

Latent Heat of Fusion, J/g 290
190
Melting Completion (Liquidus), °C 1420
970
Melting Onset (Solidus), °C 1380
930
Specific Heat Capacity, J/kg-K 480
400
Thermal Conductivity, W/m-K 16
100
Thermal Expansion, µm/m-K 14
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
23
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
25

Otherwise Unclassified Properties

Base Metal Price, % relative 16
26
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 3.2
2.8
Embodied Energy, MJ/kg 46
46
Embodied Water, L/kg 150
340

Common Calculations

Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 22
13
Strength to Weight: Bending, points 21
14
Thermal Diffusivity, mm2/s 4.2
30
Thermal Shock Resistance, points 16
13

Alloy Composition

Aluminum (Al), % 0
1.8 to 2.5
Arsenic (As), % 0
0.020 to 0.1
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 18 to 21
0
Copper (Cu), % 0 to 0.75
76 to 79
Iron (Fe), % 62.9 to 72.5
0 to 0.060
Lead (Pb), % 0
0 to 0.070
Manganese (Mn), % 0.5 to 2.5
0
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 9.0 to 11
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
17.8 to 22.2
Residuals, % 0
0 to 0.5