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ASTM A387 Grade 12 Steel vs. ZA-8

ASTM A387 grade 12 steel belongs to the iron alloys classification, while ZA-8 belongs to the zinc alloys. There are 31 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is ASTM A387 grade 12 steel and the bottom bar is ZA-8.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 160
87 to 100
Elastic (Young's, Tensile) Modulus, GPa 190
85 to 86
Elongation at Break, % 25
1.3 to 8.0
Fatigue Strength, MPa 190 to 230
51 to 100
Poisson's Ratio 0.29
0.26
Shear Modulus, GPa 73
34
Shear Strength, MPa 300 to 330
240 to 280
Tensile Strength: Ultimate (UTS), MPa 470 to 520
210 to 370
Tensile Strength: Yield (Proof), MPa 260 to 310
210 to 290

Thermal Properties

Latent Heat of Fusion, J/g 250
110
Maximum Temperature: Mechanical, °C 430
100
Melting Completion (Liquidus), °C 1470
400
Melting Onset (Solidus), °C 1420
380
Specific Heat Capacity, J/kg-K 470
440
Thermal Conductivity, W/m-K 44
120
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
28
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
40

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
11
Density, g/cm3 7.8
6.3
Embodied Carbon, kg CO2/kg material 1.6
3.3
Embodied Energy, MJ/kg 21
62
Embodied Water, L/kg 51
420

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 110
2.8 to 28
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 250
260 to 490
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 16 to 18
9.3 to 17
Strength to Weight: Bending, points 17 to 18
12 to 18
Thermal Diffusivity, mm2/s 12
42
Thermal Shock Resistance, points 14 to 15
7.6 to 13

Alloy Composition

Aluminum (Al), % 0
8.0 to 8.8
Cadmium (Cd), % 0
0 to 0.0060
Carbon (C), % 0.050 to 0.17
0
Chromium (Cr), % 0.8 to 1.2
0
Copper (Cu), % 0
0.8 to 1.3
Iron (Fe), % 97 to 98.2
0 to 0.075
Lead (Pb), % 0
0 to 0.0060
Magnesium (Mg), % 0
0.015 to 0.030
Manganese (Mn), % 0.4 to 0.65
0
Molybdenum (Mo), % 0.45 to 0.6
0
Nickel (Ni), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.15 to 0.4
0 to 0.045
Sulfur (S), % 0 to 0.025
0
Tin (Sn), % 0
0 to 0.0030
Zinc (Zn), % 0
89.7 to 91.2

Comparable Variants