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EN 1.8550 Steel vs. EN 1.4592 Stainless Steel

Both EN 1.8550 steel and EN 1.4592 stainless steel are iron alloys. They have 68% 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 EN 1.4592 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 11
23
Fatigue Strength, MPa 470
340
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
82
Shear Strength, MPa 600
400
Tensile Strength: Ultimate (UTS), MPa 1000
630
Tensile Strength: Yield (Proof), MPa 760
500

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 440
1100
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 40
17
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
18
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.7
3.8
Embodied Energy, MJ/kg 23
52
Embodied Water, L/kg 67
180

Common Calculations

PREN (Pitting Resistance) 2.3
43
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
130
Resilience: Unit (Modulus of Resilience), kJ/m3 1550
610
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 36
23
Strength to Weight: Bending, points 29
21
Thermal Diffusivity, mm2/s 11
4.6
Thermal Shock Resistance, points 29
20

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
0
Carbon (C), % 0.3 to 0.37
0 to 0.025
Chromium (Cr), % 1.5 to 1.8
28 to 30
Iron (Fe), % 94.4 to 96.3
62.6 to 68.4
Manganese (Mn), % 0.4 to 0.7
0 to 1.0
Molybdenum (Mo), % 0.15 to 0.25
3.5 to 4.5
Nickel (Ni), % 0.85 to 1.2
0
Nitrogen (N), % 0
0 to 0.045
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
Titanium (Ti), % 0
0.15 to 0.8