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ASTM A227 Spring Steel vs. CC484K Bronze

ASTM A227 spring steel belongs to the iron alloys classification, while CC484K bronze belongs to the copper 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 ASTM A227 spring steel and the bottom bar is CC484K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 500 to 640
100
Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 12
11
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 72
41
Tensile Strength: Ultimate (UTS), MPa 1720 to 2220
330
Tensile Strength: Yield (Proof), MPa 1430 to 1850
200

Thermal Properties

Latent Heat of Fusion, J/g 250
190
Maximum Temperature: Mechanical, °C 400
170
Melting Completion (Liquidus), °C 1450
1000
Melting Onset (Solidus), °C 1410
870
Specific Heat Capacity, J/kg-K 470
370
Thermal Conductivity, W/m-K 52
70
Thermal Expansion, µm/m-K 12
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
9.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
37
Density, g/cm3 7.8
8.7
Embodied Carbon, kg CO2/kg material 1.4
3.9
Embodied Energy, MJ/kg 19
64
Embodied Water, L/kg 46
400

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200 to 260
32
Stiffness to Weight: Axial, points 13
6.9
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 61 to 79
10
Strength to Weight: Bending, points 41 to 48
12
Thermal Diffusivity, mm2/s 14
22
Thermal Shock Resistance, points 55 to 71
12

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Antimony (Sb), % 0
0 to 0.1
Carbon (C), % 0.45 to 0.85
0
Copper (Cu), % 0
84.5 to 87.5
Iron (Fe), % 97.4 to 99.1
0 to 0.2
Lead (Pb), % 0
0 to 0.3
Manganese (Mn), % 0.3 to 1.3
0 to 0.2
Nickel (Ni), % 0
1.5 to 2.5
Phosphorus (P), % 0 to 0.040
0.050 to 0.4
Silicon (Si), % 0.15 to 0.35
0 to 0.010
Sulfur (S), % 0 to 0.050
0 to 0.050
Tin (Sn), % 0
11 to 13
Zinc (Zn), % 0
0 to 0.4