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EN 1.8550 Steel vs. S34565 Stainless Steel

Both EN 1.8550 steel and S34565 stainless steel are iron alloys. They have 51% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.8550 steel and the bottom bar is S34565 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 300
200
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 11
39
Fatigue Strength, MPa 470
400
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
80
Shear Strength, MPa 600
610
Tensile Strength: Ultimate (UTS), MPa 1000
900
Tensile Strength: Yield (Proof), MPa 760
470

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 440
1100
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 40
12
Thermal Expansion, µm/m-K 13
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
28
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.7
5.3
Embodied Energy, MJ/kg 23
73
Embodied Water, L/kg 67
210

Common Calculations

PREN (Pitting Resistance) 2.3
47
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
300
Resilience: Unit (Modulus of Resilience), kJ/m3 1550
540
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 36
32
Strength to Weight: Bending, points 29
26
Thermal Diffusivity, mm2/s 11
3.2
Thermal Shock Resistance, points 29
22

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
23 to 25
Iron (Fe), % 94.4 to 96.3
43.2 to 51.6
Manganese (Mn), % 0.4 to 0.7
5.0 to 7.0
Molybdenum (Mo), % 0.15 to 0.25
4.0 to 5.0
Nickel (Ni), % 0.85 to 1.2
16 to 18
Niobium (Nb), % 0
0 to 0.1
Nitrogen (N), % 0
0.4 to 0.6
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.035
0 to 0.010