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EN 1.7231 Steel vs. C87400 Brass

EN 1.7231 steel belongs to the iron alloys classification, while C87400 brass belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.7231 steel and the bottom bar is C87400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 11 to 12
21
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
41
Tensile Strength: Ultimate (UTS), MPa 790 to 930
390
Tensile Strength: Yield (Proof), MPa 570 to 800
160

Thermal Properties

Latent Heat of Fusion, J/g 250
250
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
400
Thermal Conductivity, W/m-K 46
28
Thermal Expansion, µm/m-K 13
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
6.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
7.2

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
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87 to 100
65
Resilience: Unit (Modulus of Resilience), kJ/m3 870 to 1700
120
Stiffness to Weight: Axial, points 13
7.4
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 28 to 33
13
Strength to Weight: Bending, points 24 to 27
14
Thermal Diffusivity, mm2/s 12
8.3
Thermal Shock Resistance, points 23 to 27
14

Alloy Composition

Aluminum (Al), % 0
0 to 0.8
Carbon (C), % 0.38 to 0.45
0
Chromium (Cr), % 0.8 to 1.2
0
Copper (Cu), % 0
79 to 85.5
Iron (Fe), % 96.4 to 98.1
0
Lead (Pb), % 0
0 to 1.0
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
2.5 to 4.0
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
12 to 16
Residuals, % 0
0 to 0.8