MakeItFrom.com
Menu (ESC)

AISI 409 Stainless Steel vs. EN 1.4122 Stainless Steel

Both AISI 409 stainless steel and EN 1.4122 stainless steel are iron alloys. They have a moderately high 93% 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 1.4122 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 24
14
Fatigue Strength, MPa 140
260 to 360
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
77
Shear Strength, MPa 270
480 to 520
Tensile Strength: Ultimate (UTS), MPa 420
790 to 850
Tensile Strength: Yield (Proof), MPa 200
450 to 630

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Maximum Temperature: Corrosion, °C 450
400
Maximum Temperature: Mechanical, °C 710
870
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
15
Thermal Expansion, µm/m-K 11
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
9.5
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.0
2.4
Embodied Energy, MJ/kg 28
33
Embodied Water, L/kg 94
120

Common Calculations

PREN (Pitting Resistance) 11
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
93 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 100
520 to 1000
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 15
28 to 31
Strength to Weight: Bending, points 16
25 to 26
Thermal Diffusivity, mm2/s 6.7
4.0
Thermal Shock Resistance, points 15
28 to 30

Alloy Composition

Carbon (C), % 0 to 0.080
0.33 to 0.45
Chromium (Cr), % 10.5 to 11.7
15.5 to 17.5
Iron (Fe), % 84.9 to 89.5
77.2 to 83.4
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 0
0.8 to 1.3
Nickel (Ni), % 0 to 0.5
0 to 1.0
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 to 0.015
Titanium (Ti), % 0 to 0.75
0