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EN 1.4415 Stainless Steel vs. EN 1.3555 Steel

Both EN 1.4415 stainless steel and EN 1.3555 steel are iron alloys. They have 89% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (11, 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 1.3555 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 77
75
Tensile Strength: Ultimate (UTS), MPa 830 to 930
770

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Maximum Temperature: Mechanical, °C 790
540
Melting Completion (Liquidus), °C 1460
1500
Melting Onset (Solidus), °C 1420
1450
Specific Heat Capacity, J/kg-K 470
460
Thermal Expansion, µm/m-K 9.9
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
9.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
11

Otherwise Unclassified Properties

Base Metal Price, % relative 13
11
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 3.6
5.6
Embodied Energy, MJ/kg 51
81
Embodied Water, L/kg 120
90

Common Calculations

PREN (Pitting Resistance) 19
18
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 29 to 33
27
Strength to Weight: Bending, points 25 to 27
23
Thermal Shock Resistance, points 30 to 34
22

Alloy Composition

Carbon (C), % 0 to 0.030
0.1 to 0.15
Chromium (Cr), % 11.5 to 13.5
3.9 to 4.3
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 75.9 to 82.4
85.4 to 87.7
Manganese (Mn), % 0 to 0.5
0.15 to 0.35
Molybdenum (Mo), % 1.5 to 2.5
4.0 to 4.5
Nickel (Ni), % 4.5 to 6.5
3.2 to 3.6
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 0.5
0.1 to 0.25
Sulfur (S), % 0 to 0.015
0 to 0.010
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 0
0 to 0.15
Vanadium (V), % 0.1 to 0.5
1.0 to 1.3