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S41050 Stainless Steel vs. EN 1.8550 Steel

Both S41050 stainless steel and EN 1.8550 steel are iron alloys. They have 90% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is S41050 stainless steel and the bottom bar is EN 1.8550 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
300
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 25
11
Fatigue Strength, MPa 160
470
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 300
600
Tensile Strength: Ultimate (UTS), MPa 470
1000
Tensile Strength: Yield (Proof), MPa 230
760

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 720
440
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 27
40
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
3.4
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.9
1.7
Embodied Energy, MJ/kg 27
23
Embodied Water, L/kg 97
67

Common Calculations

PREN (Pitting Resistance) 12
2.3
Resilience: Ultimate (Unit Rupture Work), MJ/m3 98
100
Resilience: Unit (Modulus of Resilience), kJ/m3 140
1550
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 17
36
Strength to Weight: Bending, points 17
29
Thermal Diffusivity, mm2/s 7.2
11
Thermal Shock Resistance, points 17
29

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.2
Carbon (C), % 0 to 0.040
0.3 to 0.37
Chromium (Cr), % 10.5 to 12.5
1.5 to 1.8
Iron (Fe), % 84.2 to 88.9
94.4 to 96.3
Manganese (Mn), % 0 to 1.0
0.4 to 0.7
Molybdenum (Mo), % 0
0.15 to 0.25
Nickel (Ni), % 0.6 to 1.1
0.85 to 1.2
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.035