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AISI 409 Stainless Steel vs. EN 1.7711 Steel

Both AISI 409 stainless steel and EN 1.7711 steel are iron alloys. They have 89% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is AISI 409 stainless steel and the bottom bar is EN 1.7711 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 24
16 to 22
Fatigue Strength, MPa 140
290 to 520
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
73
Shear Strength, MPa 270
440 to 570
Tensile Strength: Ultimate (UTS), MPa 420
690 to 930
Tensile Strength: Yield (Proof), MPa 200
400 to 800

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 710
430
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
33
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
3.0
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.0
2.3
Embodied Energy, MJ/kg 28
32
Embodied Water, L/kg 94
54

Common Calculations

PREN (Pitting Resistance) 11
2.9
Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
130 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 100
430 to 1690
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 15
24 to 33
Strength to Weight: Bending, points 16
22 to 27
Thermal Diffusivity, mm2/s 6.7
8.9
Thermal Shock Resistance, points 15
24 to 32

Alloy Composition

Aluminum (Al), % 0
0 to 0.015
Carbon (C), % 0 to 0.080
0.36 to 0.44
Chromium (Cr), % 10.5 to 11.7
0.9 to 1.2
Iron (Fe), % 84.9 to 89.5
96 to 97.5
Manganese (Mn), % 0 to 1.0
0.45 to 0.85
Molybdenum (Mo), % 0
0.5 to 0.65
Nickel (Ni), % 0 to 0.5
0
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0 to 0.75
0
Vanadium (V), % 0
0.25 to 0.35