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C34500 Brass vs. ASTM A387 Grade 91 Class 2

C34500 brass belongs to the copper alloys classification, while ASTM A387 grade 91 class 2 belongs to the iron alloys. There are 29 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 C34500 brass and the bottom bar is ASTM A387 grade 91 class 2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
190
Elongation at Break, % 12 to 28
20
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 40
75
Shear Strength, MPa 220 to 260
420
Tensile Strength: Ultimate (UTS), MPa 340 to 430
670
Tensile Strength: Yield (Proof), MPa 120 to 180
470

Thermal Properties

Latent Heat of Fusion, J/g 170
270
Maximum Temperature: Mechanical, °C 120
600
Melting Completion (Liquidus), °C 910
1460
Melting Onset (Solidus), °C 890
1420
Specific Heat Capacity, J/kg-K 380
470
Thermal Conductivity, W/m-K 120
26
Thermal Expansion, µm/m-K 21
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
8.9
Electrical Conductivity: Equal Weight (Specific), % IACS 29
10

Otherwise Unclassified Properties

Base Metal Price, % relative 24
7.0
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 2.6
2.6
Embodied Energy, MJ/kg 45
37
Embodied Water, L/kg 320
88

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 42 to 75
120
Resilience: Unit (Modulus of Resilience), kJ/m3 69 to 160
580
Stiffness to Weight: Axial, points 7.1
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 12 to 15
24
Strength to Weight: Bending, points 13 to 16
22
Thermal Diffusivity, mm2/s 37
6.9
Thermal Shock Resistance, points 11 to 14
19

Alloy Composition

Aluminum (Al), % 0
0 to 0.020
Carbon (C), % 0
0.080 to 0.12
Chromium (Cr), % 0
8.0 to 9.5
Copper (Cu), % 62 to 65
0
Iron (Fe), % 0 to 0.15
87.3 to 90.3
Lead (Pb), % 1.5 to 2.5
0
Manganese (Mn), % 0
0.3 to 0.6
Molybdenum (Mo), % 0
0.85 to 1.1
Nickel (Ni), % 0
0 to 0.4
Niobium (Nb), % 0
0.060 to 0.1
Nitrogen (N), % 0
0.030 to 0.070
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0.2 to 0.5
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0
0 to 0.010
Vanadium (V), % 0
0.18 to 0.25
Zinc (Zn), % 32 to 36.5
0
Zirconium (Zr), % 0
0 to 0.010
Residuals, % 0 to 0.4
0