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EN 1.7725 Steel vs. C69700 Brass

EN 1.7725 steel belongs to the iron alloys classification, while C69700 brass belongs to the copper 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 EN 1.7725 steel and the bottom bar is C69700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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