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S33550 Stainless Steel vs. EN 1.4401 Stainless Steel

Both S33550 stainless steel and EN 1.4401 stainless steel are iron alloys. They have 84% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is S33550 stainless steel and the bottom bar is EN 1.4401 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
190 to 270
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
14 to 40
Fatigue Strength, MPa 270
200 to 320
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
78
Shear Strength, MPa 470
410 to 550
Tensile Strength: Ultimate (UTS), MPa 680
600 to 900
Tensile Strength: Yield (Proof), MPa 310
230 to 570

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 470
410
Maximum Temperature: Mechanical, °C 1100
950
Melting Completion (Liquidus), °C 1400
1440
Melting Onset (Solidus), °C 1360
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 24
19
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 4.3
3.8
Embodied Energy, MJ/kg 61
52
Embodied Water, L/kg 190
150

Common Calculations

PREN (Pitting Resistance) 30
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
110 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 250
130 to 800
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24
21 to 32
Strength to Weight: Bending, points 22
20 to 26
Thermal Diffusivity, mm2/s 3.9
4.0
Thermal Shock Resistance, points 15
13 to 20

Alloy Composition

Carbon (C), % 0.040 to 0.1
0 to 0.070
Cerium (Ce), % 0.025 to 0.070
0
Chromium (Cr), % 25 to 28
16.5 to 18.5
Iron (Fe), % 48.8 to 58.2
62.8 to 71.5
Lanthanum (La), % 0.025 to 0.070
0
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 2.5
Nickel (Ni), % 16.5 to 20
10 to 13
Niobium (Nb), % 0.050 to 0.15
0
Nitrogen (N), % 0.18 to 0.25
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015