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AISI 409 Stainless Steel vs. EN 1.4006 Stainless Steel

Both AISI 409 stainless steel and EN 1.4006 stainless steel are iron alloys. They have a very high 98% 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 1.4006 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 24
16 to 23
Fatigue Strength, MPa 140
150 to 300
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
76
Shear Strength, MPa 270
370 to 460
Tensile Strength: Ultimate (UTS), MPa 420
590 to 750
Tensile Strength: Yield (Proof), MPa 200
230 to 510

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Maximum Temperature: Corrosion, °C 450
390
Maximum Temperature: Mechanical, °C 710
740
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
11

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
1.9
Embodied Energy, MJ/kg 28
27
Embodied Water, L/kg 94
100

Common Calculations

PREN (Pitting Resistance) 11
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
99 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 100
140 to 660
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 15
21 to 27
Strength to Weight: Bending, points 16
20 to 24
Thermal Diffusivity, mm2/s 6.7
8.1
Thermal Shock Resistance, points 15
21 to 26

Alloy Composition

Carbon (C), % 0 to 0.080
0.080 to 0.15
Chromium (Cr), % 10.5 to 11.7
11.5 to 13.5
Iron (Fe), % 84.9 to 89.5
83.1 to 88.4
Manganese (Mn), % 0 to 1.0
0 to 1.5
Nickel (Ni), % 0 to 0.5
0 to 0.75
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 to 0.015
Titanium (Ti), % 0 to 0.75
0