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CC494K Bronze vs. ASTM A387 Grade 21 Steel

CC494K bronze belongs to the copper alloys classification, while ASTM A387 grade 21 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 CC494K bronze and the bottom bar is ASTM A387 grade 21 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 67
150 to 180
Elastic (Young's, Tensile) Modulus, GPa 100
190
Elongation at Break, % 7.6
21
Poisson's Ratio 0.35
0.29
Shear Modulus, GPa 39
74
Tensile Strength: Ultimate (UTS), MPa 210
500 to 590
Tensile Strength: Yield (Proof), MPa 94
230 to 350

Thermal Properties

Latent Heat of Fusion, J/g 180
260
Maximum Temperature: Mechanical, °C 160
480
Melting Completion (Liquidus), °C 970
1470
Melting Onset (Solidus), °C 890
1430
Specific Heat Capacity, J/kg-K 360
470
Thermal Conductivity, W/m-K 63
41
Thermal Expansion, µm/m-K 19
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 16
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 31
4.1
Density, g/cm3 9.1
7.9
Embodied Carbon, kg CO2/kg material 3.1
1.8
Embodied Energy, MJ/kg 50
23
Embodied Water, L/kg 360
62

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13
84 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 43
140 to 320
Stiffness to Weight: Axial, points 6.4
13
Stiffness to Weight: Bending, points 17
24
Strength to Weight: Axial, points 6.5
18 to 21
Strength to Weight: Bending, points 8.8
18 to 20
Thermal Diffusivity, mm2/s 19
11
Thermal Shock Resistance, points 7.8
14 to 17

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Antimony (Sb), % 0 to 0.5
0
Carbon (C), % 0
0.050 to 0.15
Chromium (Cr), % 0
2.8 to 3.3
Copper (Cu), % 78 to 87
0
Iron (Fe), % 0 to 0.25
94.4 to 96
Lead (Pb), % 8.0 to 10
0
Manganese (Mn), % 0 to 0.2
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), % 0 to 2.0
0