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EN 1.8550 Steel vs. EN 1.4516 Stainless Steel

Both EN 1.8550 steel and EN 1.4516 stainless steel are iron alloys. They have 90% 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 1.4516 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11
23
Fatigue Strength, MPa 470
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Shear Strength, MPa 600
350
Tensile Strength: Ultimate (UTS), MPa 1000
550
Tensile Strength: Yield (Proof), MPa 760
320

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 440
720
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 40
30
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
7.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
2.0
Embodied Energy, MJ/kg 23
28
Embodied Water, L/kg 67
97

Common Calculations

PREN (Pitting Resistance) 2.3
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
110
Resilience: Unit (Modulus of Resilience), kJ/m3 1550
260
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 36
20
Strength to Weight: Bending, points 29
19
Thermal Diffusivity, mm2/s 11
8.1
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 0.080
Chromium (Cr), % 1.5 to 1.8
10.5 to 12.5
Iron (Fe), % 94.4 to 96.3
83.3 to 89
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
0.5 to 1.5
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 0.7
Sulfur (S), % 0 to 0.035
0 to 0.015
Titanium (Ti), % 0
0.050 to 0.35