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CC491K Bronze vs. ASTM A387 Grade 21L Class 1

CC491K bronze belongs to the copper alloys classification, while ASTM A387 grade 21L class 1 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 21L class 1.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 73
150
Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 13
21
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 40
74
Tensile Strength: Ultimate (UTS), MPa 260
500
Tensile Strength: Yield (Proof), MPa 120
230

Thermal Properties

Latent Heat of Fusion, J/g 190
260
Maximum Temperature: Mechanical, °C 160
480
Melting Completion (Liquidus), °C 980
1470
Melting Onset (Solidus), °C 900
1430
Specific Heat Capacity, J/kg-K 370
470
Thermal Conductivity, W/m-K 71
41
Thermal Expansion, µm/m-K 19
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 15
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 31
4.1
Density, g/cm3 8.9
7.9
Embodied Carbon, kg CO2/kg material 3.1
1.8
Embodied Energy, MJ/kg 51
23
Embodied Water, L/kg 350
62

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
84
Resilience: Unit (Modulus of Resilience), kJ/m3 67
140
Stiffness to Weight: Axial, points 6.7
13
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 8.1
18
Strength to Weight: Bending, points 10
18
Thermal Diffusivity, mm2/s 22
11
Thermal Shock Resistance, points 9.3
14

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Antimony (Sb), % 0 to 0.25
0
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0
2.8 to 3.3
Copper (Cu), % 81 to 87
0
Iron (Fe), % 0 to 0.3
94.4 to 96.1
Lead (Pb), % 4.0 to 6.0
0
Manganese (Mn), % 0
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 0 to 2.0
0
Phosphorus (P), % 0 to 0.1
0 to 0.025
Silicon (Si), % 0 to 0.010
0 to 0.5
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