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EN 1.4423 Stainless Steel vs. EN 1.6511 Steel

Both EN 1.4423 stainless steel and EN 1.6511 steel are iron alloys. Both are furnished in the quenched and tempered condition. They have 80% of their average alloy composition in common. There are 31 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 1.4423 stainless steel and the bottom bar is EN 1.6511 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 17
12
Fatigue Strength, MPa 380
480
Impact Strength: V-Notched Charpy, J 110
37
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 520
600
Tensile Strength: Ultimate (UTS), MPa 850
990
Tensile Strength: Yield (Proof), MPa 630
770

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 780
430
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
36
Thermal Expansion, µm/m-K 9.9
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 14
3.1
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.2
1.6
Embodied Energy, MJ/kg 43
21
Embodied Water, L/kg 120
53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
110
Resilience: Unit (Modulus of Resilience), kJ/m3 1000
1590
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 30
35
Strength to Weight: Bending, points 25
28
Thermal Diffusivity, mm2/s 4.3
9.9
Thermal Shock Resistance, points 31
29

Alloy Composition

Carbon (C), % 0 to 0.020
0.32 to 0.4
Chromium (Cr), % 11 to 13
0.9 to 1.2
Copper (Cu), % 0.2 to 0.8
0
Iron (Fe), % 73.8 to 80.5
95.6 to 97.2
Manganese (Mn), % 0 to 2.0
0.5 to 0.8
Molybdenum (Mo), % 2.3 to 2.8
0.15 to 0.3
Nickel (Ni), % 6.0 to 7.0
0.9 to 1.2
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 0.5
0 to 0.4
Sulfur (S), % 0 to 0.0030
0 to 0.035