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EN 1.4438 Stainless Steel vs. EN 1.6511 Steel

Both EN 1.4438 stainless steel and EN 1.6511 steel are iron alloys. They have 65% 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 1.4438 stainless steel and the bottom bar is EN 1.6511 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
300
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 41
12
Fatigue Strength, MPa 220
480
Impact Strength: V-Notched Charpy, J 90
37
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
73
Shear Strength, MPa 420
600
Tensile Strength: Ultimate (UTS), MPa 620
990
Tensile Strength: Yield (Proof), MPa 250
770

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 1000
430
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 14
36
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 22
3.1
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.4
1.6
Embodied Energy, MJ/kg 60
21
Embodied Water, L/kg 160
53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
110
Resilience: Unit (Modulus of Resilience), kJ/m3 150
1590
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
35
Strength to Weight: Bending, points 20
28
Thermal Diffusivity, mm2/s 3.7
9.9
Thermal Shock Resistance, points 14
29

Alloy Composition

Carbon (C), % 0 to 0.030
0.32 to 0.4
Chromium (Cr), % 17.5 to 19.5
0.9 to 1.2
Iron (Fe), % 57.3 to 66.5
95.6 to 97.2
Manganese (Mn), % 0 to 2.0
0.5 to 0.8
Molybdenum (Mo), % 3.0 to 4.0
0.15 to 0.3
Nickel (Ni), % 13 to 16
0.9 to 1.2
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.035