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C69700 Brass vs. EN 1.7725 Steel

C69700 brass belongs to the copper alloys classification, while EN 1.7725 steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C69700 brass and the bottom bar is EN 1.7725 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 25
14
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 41
73
Tensile Strength: Ultimate (UTS), MPa 470
830 to 1000
Tensile Strength: Yield (Proof), MPa 230
610 to 860

Thermal Properties

Latent Heat of Fusion, J/g 240
250
Maximum Temperature: Mechanical, °C 160
440
Melting Completion (Liquidus), °C 930
1460
Melting Onset (Solidus), °C 880
1420
Specific Heat Capacity, J/kg-K 400
470
Thermal Conductivity, W/m-K 43
39
Thermal Expansion, µm/m-K 19
13

Otherwise Unclassified Properties

Base Metal Price, % relative 26
2.9
Density, g/cm3 8.3
7.8
Embodied Carbon, kg CO2/kg material 2.7
1.8
Embodied Energy, MJ/kg 44
24
Embodied Water, L/kg 310
54

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 99
110 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 250
980 to 1940
Stiffness to Weight: Axial, points 7.3
13
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 16
29 to 35
Strength to Weight: Bending, points 16
25 to 28
Thermal Diffusivity, mm2/s 13
11
Thermal Shock Resistance, points 16
24 to 29

Alloy Composition

Carbon (C), % 0
0.27 to 0.34
Chromium (Cr), % 0
1.3 to 1.7
Copper (Cu), % 75 to 80
0
Iron (Fe), % 0 to 0.2
95.7 to 97.5
Lead (Pb), % 0.5 to 1.5
0
Manganese (Mn), % 0 to 0.4
0.6 to 1.0
Molybdenum (Mo), % 0
0.3 to 0.5
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 2.5 to 3.5
0 to 0.6
Sulfur (S), % 0
0 to 0.030
Vanadium (V), % 0
0.050 to 0.15
Zinc (Zn), % 13.9 to 22
0
Residuals, % 0 to 0.5
0