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EN 1.3555 Steel vs. S44626 Stainless Steel

Both EN 1.3555 steel and S44626 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 77% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is EN 1.3555 steel and the bottom bar is S44626 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 75
80
Tensile Strength: Ultimate (UTS), MPa 770
540

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Maximum Temperature: Mechanical, °C 540
1100
Melting Completion (Liquidus), °C 1500
1440
Melting Onset (Solidus), °C 1450
1390
Specific Heat Capacity, J/kg-K 460
480
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.3
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 11
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 11
14
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 5.6
2.9
Embodied Energy, MJ/kg 81
42
Embodied Water, L/kg 90
160

Common Calculations

PREN (Pitting Resistance) 18
30
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 27
19
Strength to Weight: Bending, points 23
19
Thermal Shock Resistance, points 22
18

Alloy Composition

Carbon (C), % 0.1 to 0.15
0 to 0.060
Chromium (Cr), % 3.9 to 4.3
25 to 27
Copper (Cu), % 0 to 0.1
0 to 0.2
Iron (Fe), % 85.4 to 87.7
68.1 to 74.1
Manganese (Mn), % 0.15 to 0.35
0 to 0.75
Molybdenum (Mo), % 4.0 to 4.5
0.75 to 1.5
Nickel (Ni), % 3.2 to 3.6
0 to 0.5
Nitrogen (N), % 0
0 to 0.040
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0.1 to 0.25
0 to 0.75
Sulfur (S), % 0 to 0.010
0 to 0.020
Titanium (Ti), % 0
0.2 to 1.0
Tungsten (W), % 0 to 0.15
0
Vanadium (V), % 1.0 to 1.3
0