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CC491K Bronze vs. ASTM A229 Spring Steel

CC491K bronze belongs to the copper alloys classification, while ASTM A229 spring steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is CC491K bronze and the bottom bar is ASTM A229 spring steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 73
490 to 550
Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 13
14
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 40
72
Tensile Strength: Ultimate (UTS), MPa 260
1690 to 1890
Tensile Strength: Yield (Proof), MPa 120
1100 to 1230

Thermal Properties

Latent Heat of Fusion, J/g 190
250
Maximum Temperature: Mechanical, °C 160
400
Melting Completion (Liquidus), °C 980
1450
Melting Onset (Solidus), °C 900
1410
Specific Heat Capacity, J/kg-K 370
470
Thermal Conductivity, W/m-K 71
50
Thermal Expansion, µm/m-K 19
12

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
1.8
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 3.1
1.4
Embodied Energy, MJ/kg 51
19
Embodied Water, L/kg 350
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
200 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 67
3260 to 4080
Stiffness to Weight: Axial, points 6.7
13
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 8.1
60 to 67
Strength to Weight: Bending, points 10
40 to 43
Thermal Diffusivity, mm2/s 22
14
Thermal Shock Resistance, points 9.3
54 to 60

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Antimony (Sb), % 0 to 0.25
0
Carbon (C), % 0
0.55 to 0.85
Copper (Cu), % 81 to 87
0
Iron (Fe), % 0 to 0.3
97.5 to 99
Lead (Pb), % 4.0 to 6.0
0
Manganese (Mn), % 0
0.3 to 1.2
Nickel (Ni), % 0 to 2.0
0
Phosphorus (P), % 0 to 0.1
0 to 0.040
Silicon (Si), % 0 to 0.010
0.15 to 0.35
Sulfur (S), % 0 to 0.1
0 to 0.050
Tin (Sn), % 4.0 to 6.0
0
Zinc (Zn), % 4.0 to 6.0
0