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EN 1.4938 Stainless Steel vs. Type 4 Magnetic Alloy

EN 1.4938 stainless steel belongs to the iron alloys classification, while Type 4 magnetic alloy belongs to the nickel alloys. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.4938 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, % 16 to 17
2.0 to 40
Fatigue Strength, MPa 390 to 520
220 to 400
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 76
73
Shear Strength, MPa 540 to 630
420 to 630
Tensile Strength: Ultimate (UTS), MPa 870 to 1030
620 to 1100
Tensile Strength: Yield (Proof), MPa 640 to 870
270 to 1040

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Mechanical, °C 750
900
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1370
Specific Heat Capacity, J/kg-K 470
440
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 10
60
Density, g/cm3 7.8
8.8
Embodied Carbon, kg CO2/kg material 3.3
10
Embodied Energy, MJ/kg 47
140
Embodied Water, L/kg 110
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
22 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 1050 to 1920
190 to 2840
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 31 to 37
19 to 35
Strength to Weight: Bending, points 26 to 29
18 to 27
Thermal Shock Resistance, points 30 to 35
21 to 37

Alloy Composition

Carbon (C), % 0.080 to 0.15
0 to 0.050
Chromium (Cr), % 11 to 12.5
0 to 0.3
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 80.5 to 84.8
9.5 to 17.5
Manganese (Mn), % 0.4 to 0.9
0 to 0.8
Molybdenum (Mo), % 1.5 to 2.0
3.5 to 6.0
Nickel (Ni), % 2.0 to 3.0
79 to 82
Nitrogen (N), % 0.020 to 0.040
0
Phosphorus (P), % 0 to 0.025
0 to 0.010
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.020
Vanadium (V), % 0.25 to 0.4
0

Comparable Variants