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CC491K Bronze vs. ASTM A387 Grade 12 Steel

CC491K bronze belongs to the copper alloys classification, while ASTM A387 grade 12 steel 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 12 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 73
140 to 160
Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 13
25
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 40
73
Tensile Strength: Ultimate (UTS), MPa 260
470 to 520
Tensile Strength: Yield (Proof), MPa 120
260 to 310

Thermal Properties

Latent Heat of Fusion, J/g 190
250
Maximum Temperature: Mechanical, °C 160
430
Melting Completion (Liquidus), °C 980
1470
Melting Onset (Solidus), °C 900
1420
Specific Heat Capacity, J/kg-K 370
470
Thermal Conductivity, W/m-K 71
44
Thermal Expansion, µm/m-K 19
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 15
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 31
2.8
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 3.1
1.6
Embodied Energy, MJ/kg 51
21
Embodied Water, L/kg 350
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
98 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 67
180 to 250
Stiffness to Weight: Axial, points 6.7
13
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 8.1
16 to 18
Strength to Weight: Bending, points 10
17 to 18
Thermal Diffusivity, mm2/s 22
12
Thermal Shock Resistance, points 9.3
14 to 15

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Antimony (Sb), % 0 to 0.25
0
Carbon (C), % 0
0.050 to 0.17
Chromium (Cr), % 0
0.8 to 1.2
Copper (Cu), % 81 to 87
0
Iron (Fe), % 0 to 0.3
97 to 98.2
Lead (Pb), % 4.0 to 6.0
0
Manganese (Mn), % 0
0.4 to 0.65
Molybdenum (Mo), % 0
0.45 to 0.6
Nickel (Ni), % 0 to 2.0
0
Phosphorus (P), % 0 to 0.1
0 to 0.025
Silicon (Si), % 0 to 0.010
0.15 to 0.4
Sulfur (S), % 0 to 0.1
0 to 0.025
Tin (Sn), % 4.0 to 6.0
0
Zinc (Zn), % 4.0 to 6.0
0