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CC491K Bronze vs. ASTM A387 Grade 91 Class 2

CC491K bronze 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 CC491K bronze and the bottom bar is ASTM A387 grade 91 class 2.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 73
200
Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 13
20
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 40
75
Tensile Strength: Ultimate (UTS), MPa 260
670
Tensile Strength: Yield (Proof), MPa 120
470

Thermal Properties

Latent Heat of Fusion, J/g 190
270
Maximum Temperature: Mechanical, °C 160
600
Melting Completion (Liquidus), °C 980
1460
Melting Onset (Solidus), °C 900
1420
Specific Heat Capacity, J/kg-K 370
470
Thermal Conductivity, W/m-K 71
26
Thermal Expansion, µm/m-K 19
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
8.9
Electrical Conductivity: Equal Weight (Specific), % IACS 15
10

Otherwise Unclassified Properties

Base Metal Price, % relative 31
7.0
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 3.1
2.6
Embodied Energy, MJ/kg 51
37
Embodied Water, L/kg 350
88

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
120
Resilience: Unit (Modulus of Resilience), kJ/m3 67
580
Stiffness to Weight: Axial, points 6.7
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 8.1
24
Strength to Weight: Bending, points 10
22
Thermal Diffusivity, mm2/s 22
6.9
Thermal Shock Resistance, points 9.3
19

Alloy Composition

Aluminum (Al), % 0 to 0.010
0 to 0.020
Antimony (Sb), % 0 to 0.25
0
Carbon (C), % 0
0.080 to 0.12
Chromium (Cr), % 0
8.0 to 9.5
Copper (Cu), % 81 to 87
0
Iron (Fe), % 0 to 0.3
87.3 to 90.3
Lead (Pb), % 4.0 to 6.0
0
Manganese (Mn), % 0
0.3 to 0.6
Molybdenum (Mo), % 0
0.85 to 1.1
Nickel (Ni), % 0 to 2.0
0 to 0.4
Niobium (Nb), % 0
0.060 to 0.1
Nitrogen (N), % 0
0.030 to 0.070
Phosphorus (P), % 0 to 0.1
0 to 0.020
Silicon (Si), % 0 to 0.010
0.2 to 0.5
Sulfur (S), % 0 to 0.1
0 to 0.010
Tin (Sn), % 4.0 to 6.0
0
Titanium (Ti), % 0
0 to 0.010
Vanadium (V), % 0
0.18 to 0.25
Zinc (Zn), % 4.0 to 6.0
0
Zirconium (Zr), % 0
0 to 0.010