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EN 1.7231 Steel vs. C69430 Brass

EN 1.7231 steel belongs to the iron alloys classification, while C69430 brass belongs to the copper alloys. There are 28 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 EN 1.7231 steel and the bottom bar is C69430 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 11 to 12
17
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
42
Tensile Strength: Ultimate (UTS), MPa 790 to 930
570
Tensile Strength: Yield (Proof), MPa 570 to 800
280

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 420
170
Melting Completion (Liquidus), °C 1460
920
Melting Onset (Solidus), °C 1420
820
Specific Heat Capacity, J/kg-K 470
410
Thermal Conductivity, W/m-K 46
26
Thermal Expansion, µm/m-K 13
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
6.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
6.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
27
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 1.5
2.7
Embodied Energy, MJ/kg 20
44
Embodied Water, L/kg 51
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87 to 100
80
Resilience: Unit (Modulus of Resilience), kJ/m3 870 to 1700
340
Stiffness to Weight: Axial, points 13
7.4
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 28 to 33
19
Strength to Weight: Bending, points 24 to 27
18
Thermal Diffusivity, mm2/s 12
7.7
Thermal Shock Resistance, points 23 to 27
20

Alloy Composition


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Arsenic (As), % 0
0.030 to 0.060
Carbon (C), % 0.38 to 0.45
0
Chromium (Cr), % 0.8 to 1.2
0
Copper (Cu), % 0
80 to 83
Iron (Fe), % 96.4 to 98.1
0 to 0.2
Lead (Pb), % 0
0 to 0.3
Manganese (Mn), % 0.6 to 1.0
0
Molybdenum (Mo), % 0.15 to 0.3
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.6
3.5 to 4.5
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
11.4 to 16.5
Residuals, % 0
0 to 0.5