MakeItFrom.com
Menu (ESC)

AISI 409 Stainless Steel vs. EN 1.4104 Stainless Steel

Both AISI 409 stainless steel and EN 1.4104 stainless steel are iron alloys. They have a moderately high 94% 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 1.4104 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 24
11 to 23
Fatigue Strength, MPa 140
230 to 310
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
77
Shear Strength, MPa 270
400 to 450
Tensile Strength: Ultimate (UTS), MPa 420
630 to 750
Tensile Strength: Yield (Proof), MPa 200
350 to 560

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Maximum Temperature: Corrosion, °C 450
410
Maximum Temperature: Mechanical, °C 710
860
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 25
25
Thermal Expansion, µm/m-K 11
10

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
8.5
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.0
2.2
Embodied Energy, MJ/kg 28
30
Embodied Water, L/kg 94
120

Common Calculations

PREN (Pitting Resistance) 11
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
77 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 100
310 to 800
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
6.7
Thermal Shock Resistance, points 15
22 to 27

Alloy Composition

Carbon (C), % 0 to 0.080
0.1 to 0.17
Chromium (Cr), % 10.5 to 11.7
15.5 to 17.5
Iron (Fe), % 84.9 to 89.5
78.8 to 84.1
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 0
0.2 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