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AWS E309 vs. Type 3 Magnetic Alloy

AWS E309 belongs to the iron alloys classification, while Type 3 magnetic alloy belongs to the nickel alloys. They have a modest 32% of their average alloy composition in common, which, by itself, doesn't mean much. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is AWS E309 and the bottom bar is Type 3 magnetic alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
180
Elongation at Break, % 34
43
Poisson's Ratio 0.27
0.31
Shear Modulus, GPa 78
70
Tensile Strength: Ultimate (UTS), MPa 620
550

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Melting Completion (Liquidus), °C 1410
1370
Melting Onset (Solidus), °C 1370
1320
Specific Heat Capacity, J/kg-K 480
450
Thermal Expansion, µm/m-K 14
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 20
55
Density, g/cm3 7.8
8.7
Embodied Carbon, kg CO2/kg material 3.7
8.7
Embodied Energy, MJ/kg 52
120
Embodied Water, L/kg 180
220

Common Calculations

Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 22
18
Strength to Weight: Bending, points 21
17
Thermal Shock Resistance, points 16
18

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.050
Chromium (Cr), % 22 to 25
2.0 to 3.0
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0 to 0.75
4.0 to 6.0
Iron (Fe), % 55.8 to 65.5
9.9 to 19
Manganese (Mn), % 0.5 to 2.5
0 to 1.5
Molybdenum (Mo), % 0 to 0.75
0 to 0.5
Nickel (Ni), % 12 to 14
75 to 78
Phosphorus (P), % 0 to 0.040
0 to 0.010
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.020