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EN 1.8550 Steel vs. EN 1.4606 Stainless Steel

Both EN 1.8550 steel and EN 1.4606 stainless steel are iron alloys. They have 58% 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 1.4606 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11
23 to 39
Fatigue Strength, MPa 470
240 to 420
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
75
Shear Strength, MPa 600
410 to 640
Tensile Strength: Ultimate (UTS), MPa 1000
600 to 1020
Tensile Strength: Yield (Proof), MPa 760
280 to 630

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 440
910
Melting Completion (Liquidus), °C 1450
1430
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 40
14
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
26
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.7
6.0
Embodied Energy, MJ/kg 23
87
Embodied Water, L/kg 67
170

Common Calculations

PREN (Pitting Resistance) 2.3
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
190 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 1550
200 to 1010
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 36
21 to 36
Strength to Weight: Bending, points 29
20 to 28
Thermal Diffusivity, mm2/s 11
3.7
Thermal Shock Resistance, points 29
21 to 35

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
0 to 0.35
Boron (B), % 0
0.0010 to 0.010
Carbon (C), % 0.3 to 0.37
0 to 0.080
Chromium (Cr), % 1.5 to 1.8
13 to 16
Iron (Fe), % 94.4 to 96.3
49.2 to 59
Manganese (Mn), % 0.4 to 0.7
1.0 to 2.0
Molybdenum (Mo), % 0.15 to 0.25
1.0 to 1.5
Nickel (Ni), % 0.85 to 1.2
24 to 27
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.035
0 to 0.015
Titanium (Ti), % 0
1.9 to 2.3
Vanadium (V), % 0
0.1 to 0.5