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Type 4 Magnetic Alloy vs. EN 1.3955 Stainless Steel

Type 4 magnetic alloy belongs to the nickel alloys classification, while EN 1.3955 stainless steel belongs to the iron alloys. They have a modest 26% of their average alloy composition in common, which, by itself, doesn't mean much. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is Type 4 magnetic alloy and the bottom bar is EN 1.3955 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 2.0 to 40
23
Fatigue Strength, MPa 220 to 400
150
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 620 to 1100
520
Tensile Strength: Yield (Proof), MPa 270 to 1040
220

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Mechanical, °C 900
930
Melting Completion (Liquidus), °C 1420
1430
Melting Onset (Solidus), °C 1370
1380
Specific Heat Capacity, J/kg-K 440
480
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 60
16
Density, g/cm3 8.8
7.8
Embodied Carbon, kg CO2/kg material 10
3.2
Embodied Energy, MJ/kg 140
45
Embodied Water, L/kg 210
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22 to 200
95
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 2840
130
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 19 to 35
18
Strength to Weight: Bending, points 18 to 27
18
Thermal Shock Resistance, points 21 to 37
15

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.15
Chromium (Cr), % 0 to 0.3
16.5 to 18.5
Cobalt (Co), % 0 to 0.5
0
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 9.5 to 17.5
65.5 to 73.5
Manganese (Mn), % 0 to 0.8
0 to 2.0
Molybdenum (Mo), % 3.5 to 6.0
0 to 0.75
Nickel (Ni), % 79 to 82
10 to 12
Phosphorus (P), % 0 to 0.010
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030