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ASTM A229 Spring Steel vs. C62400 Bronze

ASTM A229 spring steel belongs to the iron alloys classification, while C62400 bronze belongs to the copper 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 ASTM A229 spring steel and the bottom bar is C62400 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 14
11 to 14
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 72
42
Shear Strength, MPa 1020 to 1140
420 to 440
Tensile Strength: Ultimate (UTS), MPa 1690 to 1890
690 to 730
Tensile Strength: Yield (Proof), MPa 1100 to 1230
270 to 350

Thermal Properties

Latent Heat of Fusion, J/g 250
230
Maximum Temperature: Mechanical, °C 400
220
Melting Completion (Liquidus), °C 1450
1040
Melting Onset (Solidus), °C 1410
1030
Specific Heat Capacity, J/kg-K 470
440
Thermal Conductivity, W/m-K 50
59
Thermal Expansion, µm/m-K 12
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
12
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
13

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
27
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 1.4
3.2
Embodied Energy, MJ/kg 19
53
Embodied Water, L/kg 46
400

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200 to 230
68 to 77
Resilience: Unit (Modulus of Resilience), kJ/m3 3260 to 4080
320 to 550
Stiffness to Weight: Axial, points 13
7.6
Stiffness to Weight: Bending, points 24
20
Strength to Weight: Axial, points 60 to 67
23 to 25
Strength to Weight: Bending, points 40 to 43
21 to 22
Thermal Diffusivity, mm2/s 14
16
Thermal Shock Resistance, points 54 to 60
25 to 26

Alloy Composition

Aluminum (Al), % 0
10 to 11.5
Carbon (C), % 0.55 to 0.85
0
Copper (Cu), % 0
82.8 to 88
Iron (Fe), % 97.5 to 99
2.0 to 4.5
Manganese (Mn), % 0.3 to 1.2
0 to 0.3
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0.15 to 0.35
0 to 0.25
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 0
0 to 0.2
Residuals, % 0
0 to 0.5

Comparable Variants