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AISI 316N Stainless Steel vs. Type 3 Magnetic Alloy

AISI 316N stainless steel belongs to the iron alloys classification, while Type 3 magnetic alloy belongs to the nickel alloys. They have a modest 30% of their average alloy composition in common, which, by itself, doesn't mean much. There are 28 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 AISI 316N stainless steel 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, % 9.0 to 39
43
Fatigue Strength, MPa 230 to 450
170
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 78
70
Shear Strength, MPa 420 to 690
380
Tensile Strength: Ultimate (UTS), MPa 620 to 1160
550
Tensile Strength: Yield (Proof), MPa 270 to 870
210

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Mechanical, °C 940
910
Melting Completion (Liquidus), °C 1440
1370
Melting Onset (Solidus), °C 1400
1320
Specific Heat Capacity, J/kg-K 470
450
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 19
55
Density, g/cm3 7.9
8.7
Embodied Carbon, kg CO2/kg material 3.9
8.7
Embodied Energy, MJ/kg 53
120
Embodied Water, L/kg 150
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 95 to 230
190
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 1880
120
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 22 to 41
18
Strength to Weight: Bending, points 20 to 31
17
Thermal Shock Resistance, points 14 to 26
18

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.050
Chromium (Cr), % 16 to 18
2.0 to 3.0
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0
4.0 to 6.0
Iron (Fe), % 61.9 to 71.9
9.9 to 19
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 2.0 to 3.0
0 to 0.5
Nickel (Ni), % 10 to 14
75 to 78
Nitrogen (N), % 0.1 to 0.16
0
Phosphorus (P), % 0 to 0.045
0 to 0.010
Silicon (Si), % 0 to 0.75
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.020