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ASTM A229 Spring Steel vs. Commercially Pure Zinc

ASTM A229 spring steel belongs to the iron alloys classification, while commercially pure zinc belongs to the zinc 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 A229 spring steel and the bottom bar is commercially pure zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
87
Elongation at Break, % 14
38
Poisson's Ratio 0.29
0.25
Shear Modulus, GPa 72
35
Tensile Strength: Ultimate (UTS), MPa 1690 to 1890
97
Tensile Strength: Yield (Proof), MPa 1100 to 1230
79

Thermal Properties

Latent Heat of Fusion, J/g 250
110
Maximum Temperature: Mechanical, °C 400
90
Melting Completion (Liquidus), °C 1450
410
Melting Onset (Solidus), °C 1410
400
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 50
110
Thermal Expansion, µm/m-K 12
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
27
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
37

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
11
Density, g/cm3 7.8
6.6
Embodied Carbon, kg CO2/kg material 1.4
2.8
Embodied Energy, MJ/kg 19
53
Embodied Water, L/kg 46
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200 to 230
34
Resilience: Unit (Modulus of Resilience), kJ/m3 3260 to 4080
36
Stiffness to Weight: Axial, points 13
7.4
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 60 to 67
4.1
Strength to Weight: Bending, points 40 to 43
7.1
Thermal Diffusivity, mm2/s 14
44
Thermal Shock Resistance, points 54 to 60
3.0

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Cadmium (Cd), % 0
0 to 0.010
Carbon (C), % 0.55 to 0.85
0
Copper (Cu), % 0
0 to 0.080
Iron (Fe), % 97.5 to 99
0 to 0.020
Lead (Pb), % 0
0 to 0.030
Manganese (Mn), % 0.3 to 1.2
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0.15 to 0.35
0
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 0
0 to 0.0030
Titanium (Ti), % 0
0 to 0.020
Zinc (Zn), % 0
99.827 to 100