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EN 1.3956 Stainless Steel vs. Type 4 Magnetic Alloy

EN 1.3956 stainless steel belongs to the iron alloys classification, while Type 4 magnetic alloy belongs to the nickel alloys. They have a modest 29% of their average alloy composition in common, which, by itself, doesn't mean much. There are 25 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 EN 1.3956 stainless steel and the bottom bar is Type 4 magnetic alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 27
2.0 to 40
Fatigue Strength, MPa 240
220 to 400
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 650
620 to 1100
Tensile Strength: Yield (Proof), MPa 330
270 to 1040

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Mechanical, °C 1080
900
Melting Completion (Liquidus), °C 1420
1420
Melting Onset (Solidus), °C 1380
1370
Specific Heat Capacity, J/kg-K 480
440
Thermal Expansion, µm/m-K 13
11

Otherwise Unclassified Properties

Base Metal Price, % relative 22
60
Density, g/cm3 7.8
8.8
Embodied Carbon, kg CO2/kg material 4.8
10
Embodied Energy, MJ/kg 68
140
Embodied Water, L/kg 180
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
22 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 270
190 to 2840
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 23
19 to 35
Strength to Weight: Bending, points 21
18 to 27
Thermal Shock Resistance, points 18
21 to 37

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.050
Chromium (Cr), % 20.5 to 23.5
0 to 0.3
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 51.9 to 62.1
9.5 to 17.5
Manganese (Mn), % 4.0 to 6.0
0 to 0.8
Molybdenum (Mo), % 1.5 to 3.0
3.5 to 6.0
Nickel (Ni), % 11.5 to 13.5
79 to 82
Niobium (Nb), % 0.1 to 0.3
0
Nitrogen (N), % 0.2 to 0.4
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
Vanadium (V), % 0.1 to 0.3
0