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AISI 409 Stainless Steel vs. EN 1.4905 Stainless Steel

Both AISI 409 stainless steel and EN 1.4905 stainless steel are iron alloys. They have a very high 97% of their average alloy composition in common. There are 32 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 AISI 409 stainless steel and the bottom bar is EN 1.4905 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 24
19
Fatigue Strength, MPa 140
330
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
76
Shear Strength, MPa 270
460
Tensile Strength: Ultimate (UTS), MPa 420
740
Tensile Strength: Yield (Proof), MPa 200
510

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Maximum Temperature: Corrosion, °C 450
380
Maximum Temperature: Mechanical, °C 710
660
Melting Completion (Liquidus), °C 1450
1480
Melting Onset (Solidus), °C 1400
1440
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
26
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
3.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
4.2

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
9.5
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.0
2.8
Embodied Energy, MJ/kg 28
40
Embodied Water, L/kg 94
90

Common Calculations

PREN (Pitting Resistance) 11
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
130
Resilience: Unit (Modulus of Resilience), kJ/m3 100
680
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 15
26
Strength to Weight: Bending, points 16
23
Thermal Diffusivity, mm2/s 6.7
7.0
Thermal Shock Resistance, points 15
25

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Boron (B), % 0
0.00050 to 0.0050
Carbon (C), % 0 to 0.080
0.090 to 0.13
Chromium (Cr), % 10.5 to 11.7
8.5 to 9.5
Iron (Fe), % 84.9 to 89.5
86.2 to 88.8
Manganese (Mn), % 0 to 1.0
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 0 to 0.5
0.1 to 0.4
Niobium (Nb), % 0
0.060 to 0.1
Nitrogen (N), % 0
0.050 to 0.090
Phosphorus (P), % 0 to 0.045
0 to 0.020
Silicon (Si), % 0 to 1.0
0.1 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0 to 0.75
0
Tungsten (W), % 0
0.9 to 1.1
Vanadium (V), % 0
0.18 to 0.25