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EN 1.3555 Steel vs. EN 1.4903 Stainless Steel

Both EN 1.3555 steel and EN 1.4903 stainless steel are iron alloys. They have a moderately high 93% 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 1.3555 steel and the bottom bar is EN 1.4903 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 75
75
Tensile Strength: Ultimate (UTS), MPa 770
670 to 680

Thermal Properties

Latent Heat of Fusion, J/g 260
270
Maximum Temperature: Mechanical, °C 540
650
Melting Completion (Liquidus), °C 1500
1460
Melting Onset (Solidus), °C 1450
1420
Specific Heat Capacity, J/kg-K 460
470
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.3
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 11
4.0

Otherwise Unclassified Properties

Base Metal Price, % relative 11
7.0
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 5.6
2.6
Embodied Energy, MJ/kg 81
36
Embodied Water, L/kg 90
88

Common Calculations

PREN (Pitting Resistance) 18
13
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 27
24
Strength to Weight: Bending, points 23
22
Thermal Shock Resistance, points 22
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Carbon (C), % 0.1 to 0.15
0.080 to 0.12
Chromium (Cr), % 3.9 to 4.3
8.0 to 9.5
Copper (Cu), % 0 to 0.1
0 to 0.3
Iron (Fe), % 85.4 to 87.7
87.1 to 90.5
Manganese (Mn), % 0.15 to 0.35
0.3 to 0.6
Molybdenum (Mo), % 4.0 to 4.5
0.85 to 1.1
Nickel (Ni), % 3.2 to 3.6
0 to 0.4
Niobium (Nb), % 0
0.060 to 0.1
Nitrogen (N), % 0
0.030 to 0.070
Phosphorus (P), % 0 to 0.015
0 to 0.025
Silicon (Si), % 0.1 to 0.25
0 to 0.5
Sulfur (S), % 0 to 0.010
0 to 0.015
Tungsten (W), % 0 to 0.15
0
Vanadium (V), % 1.0 to 1.3
0.18 to 0.25