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AISI 409 Stainless Steel vs. S41041 Stainless Steel

Both AISI 409 stainless steel and S41041 stainless steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is AISI 409 stainless steel and the bottom bar is S41041 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 24
17
Fatigue Strength, MPa 140
350
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
76
Shear Strength, MPa 270
560
Tensile Strength: Ultimate (UTS), MPa 420
910
Tensile Strength: Yield (Proof), MPa 200
580

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Maximum Temperature: Corrosion, °C 450
430
Maximum Temperature: Mechanical, °C 710
740
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 25
29
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
8.5
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.0
2.2
Embodied Energy, MJ/kg 28
31
Embodied Water, L/kg 94
100

Common Calculations

PREN (Pitting Resistance) 11
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
140
Resilience: Unit (Modulus of Resilience), kJ/m3 100
860
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 15
32
Strength to Weight: Bending, points 16
27
Thermal Diffusivity, mm2/s 6.7
7.8
Thermal Shock Resistance, points 15
33

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Carbon (C), % 0 to 0.080
0.13 to 0.18
Chromium (Cr), % 10.5 to 11.7
11.5 to 13
Iron (Fe), % 84.9 to 89.5
84.5 to 87.8
Manganese (Mn), % 0 to 1.0
0.4 to 0.6
Molybdenum (Mo), % 0
0 to 0.2
Nickel (Ni), % 0 to 0.5
0 to 0.5
Niobium (Nb), % 0
0.15 to 0.45
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0 to 0.75
0