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EN 1.7729 Steel vs. C85900 Brass

EN 1.7729 steel belongs to the iron alloys classification, while C85900 brass belongs to the copper alloys. There are 29 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 EN 1.7729 steel and the bottom bar is C85900 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
85
Elastic (Young's, Tensile) Modulus, GPa 190
100
Elongation at Break, % 17
30
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 73
40
Tensile Strength: Ultimate (UTS), MPa 910
460
Tensile Strength: Yield (Proof), MPa 750
190

Thermal Properties

Latent Heat of Fusion, J/g 250
170
Maximum Temperature: Mechanical, °C 430
130
Melting Completion (Liquidus), °C 1470
830
Melting Onset (Solidus), °C 1430
790
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 40
89
Thermal Expansion, µm/m-K 13
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
25
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
28

Otherwise Unclassified Properties

Base Metal Price, % relative 3.8
24
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 3.3
2.9
Embodied Energy, MJ/kg 49
49
Embodied Water, L/kg 59
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
110
Resilience: Unit (Modulus of Resilience), kJ/m3 1500
170
Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 24
20
Strength to Weight: Axial, points 32
16
Strength to Weight: Bending, points 27
17
Thermal Diffusivity, mm2/s 11
29
Thermal Shock Resistance, points 27
16

Alloy Composition

Aluminum (Al), % 0.015 to 0.080
0.1 to 0.6
Antimony (Sb), % 0
0 to 0.2
Arsenic (As), % 0 to 0.020
0
Boron (B), % 0.0010 to 0.010
0 to 0.2
Carbon (C), % 0.17 to 0.23
0
Chromium (Cr), % 0.9 to 1.2
0
Copper (Cu), % 0 to 0.2
58 to 62
Iron (Fe), % 94.8 to 97
0 to 0.5
Lead (Pb), % 0
0 to 0.090
Manganese (Mn), % 0.35 to 0.75
0 to 0.010
Molybdenum (Mo), % 0.9 to 1.1
0
Nickel (Ni), % 0 to 0.2
0 to 1.5
Phosphorus (P), % 0 to 0.020
0 to 0.010
Silicon (Si), % 0 to 0.4
0 to 0.25
Sulfur (S), % 0 to 0.015
0.1 to 0.65
Tin (Sn), % 0 to 0.020
0 to 1.5
Titanium (Ti), % 0.070 to 0.15
0
Vanadium (V), % 0.6 to 0.8
0
Zinc (Zn), % 0
31 to 41
Zirconium (Zr), % 0
0 to 0.2
Residuals, % 0
0 to 0.7