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EN 1.3555 Steel vs. AISI 415 Stainless Steel

Both EN 1.3555 steel and AISI 415 stainless steel are iron alloys. They have 90% of their average alloy composition in common. There are 24 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 1.3555 steel and the bottom bar is AISI 415 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
260
Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 75
76
Tensile Strength: Ultimate (UTS), MPa 770
900

Thermal Properties

Latent Heat of Fusion, J/g 260
270
Maximum Temperature: Mechanical, °C 540
780
Melting Completion (Liquidus), °C 1500
1450
Melting Onset (Solidus), °C 1450
1400
Specific Heat Capacity, J/kg-K 460
480
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.3
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 11
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 11
11
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 5.6
2.5
Embodied Energy, MJ/kg 81
35
Embodied Water, L/kg 90
110

Common Calculations

PREN (Pitting Resistance) 18
15
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 27
32
Strength to Weight: Bending, points 23
26
Thermal Shock Resistance, points 22
33

Alloy Composition

Carbon (C), % 0.1 to 0.15
0 to 0.050
Chromium (Cr), % 3.9 to 4.3
11.5 to 14
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 85.4 to 87.7
77.8 to 84
Manganese (Mn), % 0.15 to 0.35
0.5 to 1.0
Molybdenum (Mo), % 4.0 to 4.5
0.5 to 1.0
Nickel (Ni), % 3.2 to 3.6
3.5 to 5.5
Phosphorus (P), % 0 to 0.015
0 to 0.030
Silicon (Si), % 0.1 to 0.25
0 to 0.6
Sulfur (S), % 0 to 0.010
0 to 0.030
Tungsten (W), % 0 to 0.15
0
Vanadium (V), % 1.0 to 1.3
0