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EN 1.4451 Stainless Steel vs. EN 1.6511 Steel

Both EN 1.4451 stainless steel and EN 1.6511 steel are iron alloys. They have 64% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.4451 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, % 25
12
Fatigue Strength, MPa 370
480
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 750
990
Tensile Strength: Yield (Proof), MPa 540
770

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
430
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
36
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 20
3.1
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.8
1.6
Embodied Energy, MJ/kg 53
21
Embodied Water, L/kg 190
53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
110
Resilience: Unit (Modulus of Resilience), kJ/m3 710
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 23
28
Thermal Diffusivity, mm2/s 4.5
9.9
Thermal Shock Resistance, points 16
29

Alloy Composition

Carbon (C), % 0 to 0.030
0.32 to 0.4
Chromium (Cr), % 25 to 27
0.9 to 1.2
Copper (Cu), % 2.8 to 3.5
0
Iron (Fe), % 56.2 to 64.6
95.6 to 97.2
Manganese (Mn), % 0 to 1.5
0.5 to 0.8
Molybdenum (Mo), % 2.5 to 3.5
0.15 to 0.3
Nickel (Ni), % 5.0 to 7.0
0.9 to 1.2
Nitrogen (N), % 0.12 to 0.22
0
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.025
0 to 0.035