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EN 1.4550 Stainless Steel vs. EN 1.4611 Stainless Steel

Both EN 1.4550 stainless steel and EN 1.4611 stainless steel are iron alloys. They have 89% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.4550 stainless steel and the bottom bar is EN 1.4611 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 42
21
Fatigue Strength, MPa 210
180
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
78
Shear Strength, MPa 430
330
Tensile Strength: Ultimate (UTS), MPa 620
530
Tensile Strength: Yield (Proof), MPa 230
280

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 480
530
Maximum Temperature: Mechanical, °C 940
970
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1390
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
21
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 18
11
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.6
2.5
Embodied Energy, MJ/kg 51
36
Embodied Water, L/kg 140
140

Common Calculations

PREN (Pitting Resistance) 18
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
91
Resilience: Unit (Modulus of Resilience), kJ/m3 140
190
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
19
Strength to Weight: Bending, points 21
19
Thermal Diffusivity, mm2/s 4.0
5.7
Thermal Shock Resistance, points 14
18

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 17 to 19
19 to 22
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 64.9 to 74
73.3 to 80.8
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 9.0 to 12
0 to 0.5
Niobium (Nb), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.045
0 to 0.050
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.050
Titanium (Ti), % 0
0.2 to 1.0