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C87500 Brass vs. ASTM A232 Spring Steel

C87500 brass belongs to the copper alloys classification, while ASTM A232 spring steel belongs to the iron alloys. There are 27 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 C87500 brass and the bottom bar is ASTM A232 spring steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 18
14
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 42
73
Tensile Strength: Ultimate (UTS), MPa 460
1790
Tensile Strength: Yield (Proof), MPa 190
1610

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 170
420
Melting Completion (Liquidus), °C 920
1460
Melting Onset (Solidus), °C 820
1410
Specific Heat Capacity, J/kg-K 410
470
Thermal Conductivity, W/m-K 28
52
Thermal Expansion, µm/m-K 18
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 27
2.3
Density, g/cm3 8.3
7.8
Embodied Carbon, kg CO2/kg material 2.7
2.0
Embodied Energy, MJ/kg 44
28
Embodied Water, L/kg 300
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 67
250
Stiffness to Weight: Axial, points 7.4
13
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 16
64
Strength to Weight: Bending, points 16
42
Thermal Diffusivity, mm2/s 8.3
14
Thermal Shock Resistance, points 17
53

Alloy Composition

Aluminum (Al), % 0 to 0.5
0
Carbon (C), % 0
0.48 to 0.53
Chromium (Cr), % 0
0.8 to 1.1
Copper (Cu), % 79 to 85
0
Iron (Fe), % 0
96.8 to 97.7
Lead (Pb), % 0 to 0.5
0
Manganese (Mn), % 0
0.7 to 0.9
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 3.0 to 5.0
0.15 to 0.35
Sulfur (S), % 0
0 to 0.035
Vanadium (V), % 0
0.15 to 0.3
Zinc (Zn), % 12 to 16
0
Residuals, % 0 to 0.5
0