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AISI 409 Stainless Steel vs. S42300 Stainless Steel

Both AISI 409 stainless steel and S42300 stainless steel are iron alloys. They have a very high 96% 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 S42300 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 24
9.1
Fatigue Strength, MPa 140
440
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
77
Shear Strength, MPa 270
650
Tensile Strength: Ultimate (UTS), MPa 420
1100
Tensile Strength: Yield (Proof), MPa 200
850

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Maximum Temperature: Corrosion, °C 450
380
Maximum Temperature: Mechanical, °C 710
750
Melting Completion (Liquidus), °C 1450
1470
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
25
Thermal Expansion, µm/m-K 11
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
4.5
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
5.2

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
9.5
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.0
3.2
Embodied Energy, MJ/kg 28
44
Embodied Water, L/kg 94
110

Common Calculations

PREN (Pitting Resistance) 11
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
93
Resilience: Unit (Modulus of Resilience), kJ/m3 100
1840
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 15
39
Strength to Weight: Bending, points 16
30
Thermal Diffusivity, mm2/s 6.7
6.8
Thermal Shock Resistance, points 15
40

Alloy Composition

Carbon (C), % 0 to 0.080
0.27 to 0.32
Chromium (Cr), % 10.5 to 11.7
11 to 12
Iron (Fe), % 84.9 to 89.5
82 to 85.1
Manganese (Mn), % 0 to 1.0
1.0 to 1.4
Molybdenum (Mo), % 0
2.5 to 3.0
Nickel (Ni), % 0 to 0.5
0 to 0.5
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.025
Titanium (Ti), % 0 to 0.75
0
Vanadium (V), % 0
0.2 to 0.3