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CC497K Bronze vs. ASTM A229 Spring Steel

CC497K 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 CC497K bronze and the bottom bar is ASTM A229 spring steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
490 to 550
Elastic (Young's, Tensile) Modulus, GPa 93
190
Elongation at Break, % 6.7
14
Poisson's Ratio 0.36
0.29
Shear Modulus, GPa 34
72
Tensile Strength: Ultimate (UTS), MPa 190
1690 to 1890
Tensile Strength: Yield (Proof), MPa 91
1100 to 1230

Thermal Properties

Latent Heat of Fusion, J/g 160
250
Maximum Temperature: Mechanical, °C 130
400
Melting Completion (Liquidus), °C 870
1450
Melting Onset (Solidus), °C 800
1410
Specific Heat Capacity, J/kg-K 330
470
Thermal Conductivity, W/m-K 53
50
Thermal Expansion, µm/m-K 20
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 29
1.8
Density, g/cm3 9.3
7.8
Embodied Carbon, kg CO2/kg material 3.0
1.4
Embodied Energy, MJ/kg 48
19
Embodied Water, L/kg 370
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10
200 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 45
3260 to 4080
Stiffness to Weight: Axial, points 5.5
13
Stiffness to Weight: Bending, points 16
24
Strength to Weight: Axial, points 5.6
60 to 67
Strength to Weight: Bending, points 7.8
40 to 43
Thermal Diffusivity, mm2/s 17
14
Thermal Shock Resistance, points 7.2
54 to 60

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Antimony (Sb), % 0 to 0.75
0
Carbon (C), % 0
0.55 to 0.85
Copper (Cu), % 67.5 to 77.5
0
Iron (Fe), % 0 to 0.25
97.5 to 99
Lead (Pb), % 18 to 23
0
Manganese (Mn), % 0 to 0.2
0.3 to 1.2
Nickel (Ni), % 0.5 to 2.5
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), % 0 to 2.0
0