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EN 1.6511 Steel vs. EN 1.4401 Stainless Steel

Both EN 1.6511 steel and EN 1.4401 stainless steel are iron alloys. They have 70% of their average alloy composition in common. There are 32 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 1.6511 steel and the bottom bar is EN 1.4401 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 300
190 to 270
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 12
14 to 40
Fatigue Strength, MPa 480
200 to 320
Impact Strength: V-Notched Charpy, J 37
91 to 94
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Shear Strength, MPa 600
410 to 550
Tensile Strength: Ultimate (UTS), MPa 990
600 to 900
Tensile Strength: Yield (Proof), MPa 770
230 to 570

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 430
950
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 36
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 3.1
19
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.6
3.8
Embodied Energy, MJ/kg 21
52
Embodied Water, L/kg 53
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
110 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 1590
130 to 800
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 35
21 to 32
Strength to Weight: Bending, points 28
20 to 26
Thermal Diffusivity, mm2/s 9.9
4.0
Thermal Shock Resistance, points 29
13 to 20

Alloy Composition

Carbon (C), % 0.32 to 0.4
0 to 0.070
Chromium (Cr), % 0.9 to 1.2
16.5 to 18.5
Iron (Fe), % 95.6 to 97.2
62.8 to 71.5
Manganese (Mn), % 0.5 to 0.8
0 to 2.0
Molybdenum (Mo), % 0.15 to 0.3
2.0 to 2.5
Nickel (Ni), % 0.9 to 1.2
10 to 13
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.035
0 to 0.015