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EN 1.8550 Steel vs. N08135 Stainless Steel

Both EN 1.8550 steel and N08135 stainless steel are iron alloys. They have a modest 40% of their average alloy composition in common, which, by itself, doesn't mean much. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.8550 steel and the bottom bar is N08135 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11
46
Fatigue Strength, MPa 470
220
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
80
Shear Strength, MPa 600
400
Tensile Strength: Ultimate (UTS), MPa 1000
570
Tensile Strength: Yield (Proof), MPa 760
240

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 440
1100
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1410
1390
Specific Heat Capacity, J/kg-K 480
460
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
39
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 1.7
6.8
Embodied Energy, MJ/kg 23
94
Embodied Water, L/kg 67
220

Common Calculations

PREN (Pitting Resistance) 2.3
38
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
210
Resilience: Unit (Modulus of Resilience), kJ/m3 1550
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 36
19
Strength to Weight: Bending, points 29
19
Thermal Shock Resistance, points 29
13

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
0
Carbon (C), % 0.3 to 0.37
0 to 0.030
Chromium (Cr), % 1.5 to 1.8
20.5 to 23.5
Copper (Cu), % 0
0 to 0.7
Iron (Fe), % 94.4 to 96.3
30.2 to 42.3
Manganese (Mn), % 0.4 to 0.7
0 to 1.0
Molybdenum (Mo), % 0.15 to 0.25
4.0 to 5.0
Nickel (Ni), % 0.85 to 1.2
33 to 38
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.4
0 to 0.75
Sulfur (S), % 0 to 0.035
0 to 0.030
Tungsten (W), % 0
0.2 to 0.8