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Zamak 3 vs. ASTM A229 Spring Steel

Zamak 3 belongs to the zinc alloys classification, while ASTM A229 spring steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is Zamak 3 and the bottom bar is ASTM A229 spring steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 83
490 to 550
Elastic (Young's, Tensile) Modulus, GPa 86
190
Elongation at Break, % 11
14
Fatigue Strength, MPa 48
710 to 790
Poisson's Ratio 0.25
0.29
Shear Modulus, GPa 33
72
Shear Strength, MPa 210
1020 to 1140
Tensile Strength: Ultimate (UTS), MPa 280
1690 to 1890
Tensile Strength: Yield (Proof), MPa 210
1100 to 1230

Thermal Properties

Latent Heat of Fusion, J/g 120
250
Maximum Temperature: Mechanical, °C 95
400
Melting Completion (Liquidus), °C 390
1450
Melting Onset (Solidus), °C 380
1410
Specific Heat Capacity, J/kg-K 410
470
Thermal Conductivity, W/m-K 110
50
Thermal Expansion, µm/m-K 27
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 38
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 11
1.8
Density, g/cm3 6.4
7.8
Embodied Carbon, kg CO2/kg material 3.0
1.4
Embodied Energy, MJ/kg 57
19
Embodied Water, L/kg 380
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 28
200 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 260
3260 to 4080
Stiffness to Weight: Axial, points 7.5
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 12
60 to 67
Strength to Weight: Bending, points 15
40 to 43
Thermal Diffusivity, mm2/s 43
14
Thermal Shock Resistance, points 8.6
54 to 60

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0
Cadmium (Cd), % 0 to 0.0050
0
Carbon (C), % 0
0.55 to 0.85
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 0 to 0.1
97.5 to 99
Lead (Pb), % 0 to 0.0050
0
Magnesium (Mg), % 0.020 to 0.060
0
Manganese (Mn), % 0
0.3 to 1.2
Nickel (Ni), % 0 to 0.020
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.030
0.15 to 0.35
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0 to 0.0030
0
Zinc (Zn), % 95.3 to 96.5
0