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ASTM A387 Grade 91 Class 2 vs. Z24311 Zinc

ASTM A387 grade 91 class 2 belongs to the iron alloys classification, while Z24311 zinc belongs to the zinc alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ASTM A387 grade 91 class 2 and the bottom bar is Z24311 zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
87
Elongation at Break, % 20
63
Poisson's Ratio 0.28
0.25
Shear Modulus, GPa 75
35
Tensile Strength: Ultimate (UTS), MPa 670
140
Tensile Strength: Yield (Proof), MPa 470
120

Thermal Properties

Latent Heat of Fusion, J/g 270
110
Maximum Temperature: Mechanical, °C 600
90
Melting Completion (Liquidus), °C 1460
410
Melting Onset (Solidus), °C 1420
400
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 26
110
Thermal Expansion, µm/m-K 13
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.9
27
Electrical Conductivity: Equal Weight (Specific), % IACS 10
37

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
11
Density, g/cm3 7.8
6.6
Embodied Carbon, kg CO2/kg material 2.6
2.8
Embodied Energy, MJ/kg 37
53
Embodied Water, L/kg 88
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
85
Resilience: Unit (Modulus of Resilience), kJ/m3 580
81
Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 24
6.1
Strength to Weight: Bending, points 22
9.3
Thermal Diffusivity, mm2/s 6.9
44
Thermal Shock Resistance, points 19
4.6

Alloy Composition

Aluminum (Al), % 0 to 0.020
0 to 0.0020
Cadmium (Cd), % 0
0 to 0.0050
Carbon (C), % 0.080 to 0.12
0
Chromium (Cr), % 8.0 to 9.5
0
Copper (Cu), % 0
0 to 0.0050
Iron (Fe), % 87.3 to 90.3
0 to 0.010
Lead (Pb), % 0
0.030 to 0.080
Magnesium (Mg), % 0
0 to 0.0015
Manganese (Mn), % 0.3 to 0.6
0 to 0.015
Molybdenum (Mo), % 0.85 to 1.1
0
Nickel (Ni), % 0 to 0.4
0
Niobium (Nb), % 0.060 to 0.1
0
Nitrogen (N), % 0.030 to 0.070
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0.2 to 0.5
0
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0 to 0.010
0 to 0.020
Vanadium (V), % 0.18 to 0.25
0
Zinc (Zn), % 0
99.862 to 100
Zirconium (Zr), % 0 to 0.010
0