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EN 1.8550 Steel vs. N08810 Stainless Steel

Both EN 1.8550 steel and N08810 stainless steel are iron alloys. They have 49% of their average alloy composition in common. There are 31 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 EN 1.8550 steel and the bottom bar is N08810 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11
33
Fatigue Strength, MPa 470
160
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 600
340
Tensile Strength: Ultimate (UTS), MPa 1000
520
Tensile Strength: Yield (Proof), MPa 760
200

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 440
1100
Melting Completion (Liquidus), °C 1450
1400
Melting Onset (Solidus), °C 1410
1350
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 40
12
Thermal Expansion, µm/m-K 13
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
30
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 1.7
5.3
Embodied Energy, MJ/kg 23
76
Embodied Water, L/kg 67
200

Common Calculations

PREN (Pitting Resistance) 2.3
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
140
Resilience: Unit (Modulus of Resilience), kJ/m3 1550
100
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 36
18
Strength to Weight: Bending, points 29
18
Thermal Diffusivity, mm2/s 11
3.0
Thermal Shock Resistance, points 29
13

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
0.15 to 0.6
Carbon (C), % 0.3 to 0.37
0.050 to 0.1
Chromium (Cr), % 1.5 to 1.8
19 to 23
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 94.4 to 96.3
39.5 to 50.7
Manganese (Mn), % 0.4 to 0.7
0 to 1.5
Molybdenum (Mo), % 0.15 to 0.25
0
Nickel (Ni), % 0.85 to 1.2
30 to 35
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.035
0 to 0.015
Titanium (Ti), % 0
0.15 to 0.6