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CC494K Bronze vs. ASTM A227 Spring Steel

CC494K bronze belongs to the copper alloys classification, while ASTM A227 spring steel belongs to the iron alloys. There are 28 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 A227 spring steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 67
500 to 640
Elastic (Young's, Tensile) Modulus, GPa 100
190
Elongation at Break, % 7.6
12
Poisson's Ratio 0.35
0.29
Shear Modulus, GPa 39
72
Tensile Strength: Ultimate (UTS), MPa 210
1720 to 2220
Tensile Strength: Yield (Proof), MPa 94
1430 to 1850

Thermal Properties

Latent Heat of Fusion, J/g 180
250
Maximum Temperature: Mechanical, °C 160
400
Melting Completion (Liquidus), °C 970
1450
Melting Onset (Solidus), °C 890
1410
Specific Heat Capacity, J/kg-K 360
470
Thermal Conductivity, W/m-K 63
52
Thermal Expansion, µm/m-K 19
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 16
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 31
1.8
Density, g/cm3 9.1
7.8
Embodied Carbon, kg CO2/kg material 3.1
1.4
Embodied Energy, MJ/kg 50
19
Embodied Water, L/kg 360
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13
200 to 260
Stiffness to Weight: Axial, points 6.4
13
Stiffness to Weight: Bending, points 17
24
Strength to Weight: Axial, points 6.5
61 to 79
Strength to Weight: Bending, points 8.8
41 to 48
Thermal Diffusivity, mm2/s 19
14
Thermal Shock Resistance, points 7.8
55 to 71

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Antimony (Sb), % 0 to 0.5
0
Carbon (C), % 0
0.45 to 0.85
Copper (Cu), % 78 to 87
0
Iron (Fe), % 0 to 0.25
97.4 to 99.1
Lead (Pb), % 8.0 to 10
0
Manganese (Mn), % 0 to 0.2
0.3 to 1.3
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), % 0 to 2.0
0