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AWS ER70S-A1 vs. ZA-8

AWS ER70S-A1 belongs to the iron alloys classification, while ZA-8 belongs to the zinc alloys. There are 27 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is AWS ER70S-A1 and the bottom bar is ZA-8.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
85 to 86
Elongation at Break, % 22
1.3 to 8.0
Poisson's Ratio 0.29
0.26
Shear Modulus, GPa 73
34
Tensile Strength: Ultimate (UTS), MPa 590
210 to 370
Tensile Strength: Yield (Proof), MPa 450
210 to 290

Thermal Properties

Latent Heat of Fusion, J/g 260
110
Melting Completion (Liquidus), °C 1460
400
Melting Onset (Solidus), °C 1420
380
Specific Heat Capacity, J/kg-K 470
440
Thermal Conductivity, W/m-K 50
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 2.5
11
Density, g/cm3 7.8
6.3
Embodied Carbon, kg CO2/kg material 1.5
3.3
Embodied Energy, MJ/kg 20
62
Embodied Water, L/kg 48
420

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
2.8 to 28
Resilience: Unit (Modulus of Resilience), kJ/m3 540
260 to 490
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 21
9.3 to 17
Strength to Weight: Bending, points 20
12 to 18
Thermal Diffusivity, mm2/s 14
42
Thermal Shock Resistance, points 17
7.6 to 13

Alloy Composition

Aluminum (Al), % 0
8.0 to 8.8
Cadmium (Cd), % 0
0 to 0.0060
Carbon (C), % 0 to 0.12
0
Copper (Cu), % 0 to 0.35
0.8 to 1.3
Iron (Fe), % 96.1 to 99.3
0 to 0.075
Lead (Pb), % 0
0 to 0.0060
Magnesium (Mg), % 0
0.015 to 0.030
Manganese (Mn), % 0 to 1.3
0
Molybdenum (Mo), % 0.4 to 0.65
0
Nickel (Ni), % 0 to 0.2
0 to 0.020
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.3 to 0.7
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
Residuals, % 0 to 0.5
0