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Grade FDSiCr Steel vs. C68700 Brass

Grade FDSiCr steel belongs to the iron alloys classification, while C68700 brass belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is grade FDSiCr steel and the bottom bar is C68700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 80
41
Tensile Strength: Ultimate (UTS), MPa 1930
390

Thermal Properties

Latent Heat of Fusion, J/g 270
190
Maximum Temperature: Mechanical, °C 410
160
Melting Completion (Liquidus), °C 1440
970
Melting Onset (Solidus), °C 1400
930
Specific Heat Capacity, J/kg-K 480
400
Thermal Conductivity, W/m-K 48
100
Thermal Expansion, µm/m-K 13
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
23
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
25

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
26
Density, g/cm3 7.7
8.3
Embodied Carbon, kg CO2/kg material 1.5
2.8
Embodied Energy, MJ/kg 20
46
Embodied Water, L/kg 48
340

Common Calculations

Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 69
13
Strength to Weight: Bending, points 44
14
Thermal Diffusivity, mm2/s 13
30
Thermal Shock Resistance, points 58
13

Alloy Composition

Aluminum (Al), % 0
1.8 to 2.5
Arsenic (As), % 0
0.020 to 0.1
Carbon (C), % 0.5 to 0.6
0
Chromium (Cr), % 0.5 to 0.8
0
Copper (Cu), % 0 to 0.12
76 to 79
Iron (Fe), % 96.5 to 97.8
0 to 0.060
Lead (Pb), % 0
0 to 0.070
Manganese (Mn), % 0.5 to 0.9
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 1.2 to 1.6
0
Sulfur (S), % 0 to 0.025
0
Zinc (Zn), % 0
17.8 to 22.2
Residuals, % 0
0 to 0.5