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AISI 409 Stainless Steel vs. EN 1.4600 Stainless Steel

Both AISI 409 stainless steel and EN 1.4600 stainless steel are iron alloys. Both are furnished in the annealed condition. 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 1.4600 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 24
23
Fatigue Strength, MPa 140
290
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
76
Shear Strength, MPa 270
360
Tensile Strength: Ultimate (UTS), MPa 420
580
Tensile Strength: Yield (Proof), MPa 200
430

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Maximum Temperature: Corrosion, °C 450
420
Maximum Temperature: Mechanical, °C 710
730
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
27
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
3.4

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
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
120
Resilience: Unit (Modulus of Resilience), kJ/m3 100
470
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 15
21
Strength to Weight: Bending, points 16
20
Thermal Diffusivity, mm2/s 6.7
7.3
Thermal Shock Resistance, points 15
21

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 10.5 to 11.7
11 to 13
Iron (Fe), % 84.9 to 89.5
82 to 87.7
Manganese (Mn), % 0 to 1.0
1.0 to 2.5
Nickel (Ni), % 0 to 0.5
0.3 to 1.0
Nitrogen (N), % 0
0 to 0.025
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 to 0.35