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EN 1.4646 Stainless Steel vs. EN 1.6511 Steel

Both EN 1.4646 stainless steel and EN 1.6511 steel are iron alloys. They have 66% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.4646 stainless steel and the bottom bar is EN 1.6511 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
300
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
12
Fatigue Strength, MPa 340
480
Impact Strength: V-Notched Charpy, J 90
37
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 500
600
Tensile Strength: Ultimate (UTS), MPa 750
990
Tensile Strength: Yield (Proof), MPa 430
770

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 910
430
Melting Completion (Liquidus), °C 1390
1460
Melting Onset (Solidus), °C 1340
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 17
13

Otherwise Unclassified Properties

Base Metal Price, % relative 13
3.1
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.8
1.6
Embodied Energy, MJ/kg 41
21
Embodied Water, L/kg 160
53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
110
Resilience: Unit (Modulus of Resilience), kJ/m3 460
1590
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27
35
Strength to Weight: Bending, points 24
28
Thermal Shock Resistance, points 16
29

Alloy Composition

Carbon (C), % 0.020 to 0.1
0.32 to 0.4
Chromium (Cr), % 17 to 19
0.9 to 1.2
Copper (Cu), % 1.5 to 3.0
0
Iron (Fe), % 59 to 67.3
95.6 to 97.2
Manganese (Mn), % 10.5 to 12.5
0.5 to 0.8
Molybdenum (Mo), % 0 to 0.5
0.15 to 0.3
Nickel (Ni), % 3.5 to 4.5
0.9 to 1.2
Nitrogen (N), % 0.2 to 0.3
0
Phosphorus (P), % 0 to 0.050
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.035