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EN 1.4938 Stainless Steel vs. EN 1.8522 Steel

Both EN 1.4938 stainless steel and EN 1.8522 steel are iron alloys. They have 88% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (8, 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 EN 1.8522 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
74
Tensile Strength: Ultimate (UTS), MPa 870 to 1030
730 to 1250

Thermal Properties

Latent Heat of Fusion, J/g 270
260
Maximum Temperature: Mechanical, °C 750
470
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 30
39
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 10
4.2
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.3
2.2
Embodied Energy, MJ/kg 47
31
Embodied Water, L/kg 110
63

Common Calculations

PREN (Pitting Resistance) 18
6.2
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 31 to 37
26 to 44
Strength to Weight: Bending, points 26 to 29
23 to 33
Thermal Diffusivity, mm2/s 8.1
11
Thermal Shock Resistance, points 30 to 35
21 to 36

Alloy Composition

Carbon (C), % 0.080 to 0.15
0.29 to 0.36
Chromium (Cr), % 11 to 12.5
2.8 to 3.3
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 80.5 to 84.8
93.7 to 96
Manganese (Mn), % 0.4 to 0.9
0.4 to 0.7
Molybdenum (Mo), % 1.5 to 2.0
0.7 to 1.2
Nickel (Ni), % 2.0 to 3.0
0 to 0.3
Nitrogen (N), % 0.020 to 0.040
0
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.5
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.035
Vanadium (V), % 0.25 to 0.4
0.15 to 0.25

Comparable Variants