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AISI 409 Stainless Steel vs. EN 1.4005 Stainless Steel

Both AISI 409 stainless steel and EN 1.4005 stainless steel are iron alloys. They have a very high 97% of their average alloy composition in common.

For each property being compared, the top bar is AISI 409 stainless steel and the bottom bar is EN 1.4005 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 24
13 to 21
Fatigue Strength, MPa 140
240 to 290
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
76
Shear Strength, MPa 270
390 to 450
Tensile Strength: Ultimate (UTS), MPa 420
630 to 750
Tensile Strength: Yield (Proof), MPa 200
370 to 500

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Maximum Temperature: Corrosion, °C 450
390
Maximum Temperature: Mechanical, °C 710
760
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 25
30
Thermal Expansion, µm/m-K 11
10

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
7.0
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.0
2.0
Embodied Energy, MJ/kg 28
28
Embodied Water, L/kg 94
100

Common Calculations

PREN (Pitting Resistance) 11
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
90 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 100
350 to 650
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 15
23 to 27
Strength to Weight: Bending, points 16
21 to 24
Thermal Diffusivity, mm2/s 6.7
8.1
Thermal Shock Resistance, points 15
23 to 27

Alloy Composition

Carbon (C), % 0 to 0.080
0.060 to 0.15
Chromium (Cr), % 10.5 to 11.7
12 to 14
Iron (Fe), % 84.9 to 89.5
82.4 to 87.8
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.6
Nickel (Ni), % 0 to 0.5
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0.15 to 0.35
Titanium (Ti), % 0 to 0.75
0