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EN 1.4415 Stainless Steel vs. EN 1.3558 Steel

Both EN 1.4415 stainless steel and EN 1.3558 steel are iron alloys. They have 81% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.4415 stainless steel and the bottom bar is EN 1.3558 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 830 to 930
770

Thermal Properties

Latent Heat of Fusion, J/g 280
240
Maximum Temperature: Mechanical, °C 790
490
Melting Completion (Liquidus), °C 1460
1810
Melting Onset (Solidus), °C 1420
1760
Specific Heat Capacity, J/kg-K 470
410
Thermal Conductivity, W/m-K 19
20
Thermal Expansion, µm/m-K 9.9
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
13
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
12

Otherwise Unclassified Properties

Base Metal Price, % relative 13
45
Density, g/cm3 7.9
9.3
Embodied Carbon, kg CO2/kg material 3.6
8.4
Embodied Energy, MJ/kg 51
130
Embodied Water, L/kg 120
90

Common Calculations

PREN (Pitting Resistance) 19
35
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 25
21
Strength to Weight: Axial, points 29 to 33
23
Strength to Weight: Bending, points 25 to 27
20
Thermal Diffusivity, mm2/s 5.1
5.3
Thermal Shock Resistance, points 30 to 34
22

Alloy Composition

Carbon (C), % 0 to 0.030
0.7 to 0.8
Chromium (Cr), % 11.5 to 13.5
3.9 to 4.3
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 75.9 to 82.4
73.7 to 77.6
Manganese (Mn), % 0 to 0.5
0 to 0.4
Molybdenum (Mo), % 1.5 to 2.5
0 to 0.6
Nickel (Ni), % 4.5 to 6.5
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.5
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 0
17.5 to 19
Vanadium (V), % 0.1 to 0.5
1.0 to 1.3