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AWS E3155 vs. Type 4 Magnetic Alloy

AWS E3155 belongs to the iron alloys classification, while Type 4 magnetic alloy belongs to the nickel alloys. They have a modest 38% of their average alloy composition in common, which, by itself, doesn't mean much. There are 20 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is AWS E3155 and the bottom bar is Type 4 magnetic alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 23
2.0 to 40
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 81
73
Tensile Strength: Ultimate (UTS), MPa 770
620 to 1100

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1410
1370
Specific Heat Capacity, J/kg-K 450
440
Thermal Expansion, µm/m-K 13
11

Otherwise Unclassified Properties

Base Metal Price, % relative 70
60
Density, g/cm3 8.4
8.8
Embodied Carbon, kg CO2/kg material 7.7
10
Embodied Energy, MJ/kg 110
140
Embodied Water, L/kg 300
210

Common Calculations

Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 26
19 to 35
Strength to Weight: Bending, points 22
18 to 27
Thermal Shock Resistance, points 20
21 to 37

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.050
Chromium (Cr), % 20 to 22.5
0 to 0.3
Cobalt (Co), % 18.5 to 21
0 to 0.5
Copper (Cu), % 0 to 0.75
0 to 0.3
Iron (Fe), % 23.3 to 36.3
9.5 to 17.5
Manganese (Mn), % 1.0 to 2.5
0 to 0.8
Molybdenum (Mo), % 2.5 to 3.5
3.5 to 6.0
Nickel (Ni), % 19 to 21
79 to 82
Niobium (Nb), % 0.75 to 1.3
0
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
Tungsten (W), % 2.0 to 3.0
0