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AISI 409 Stainless Steel vs. ACI-ASTM CE3MN Steel

Both AISI 409 stainless steel and ACI-ASTM CE3MN steel are iron alloys. They have 74% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is AISI 409 stainless steel and the bottom bar is ACI-ASTM CE3MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 24
20
Fatigue Strength, MPa 140
380
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 75
81
Tensile Strength: Ultimate (UTS), MPa 420
770
Tensile Strength: Yield (Proof), MPa 200
590

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Corrosion, °C 450
450
Maximum Temperature: Mechanical, °C 710
1100
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
15
Thermal Expansion, µm/m-K 11
13

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
21
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.0
4.2
Embodied Energy, MJ/kg 28
58
Embodied Water, L/kg 94
180

Common Calculations

PREN (Pitting Resistance) 11
43
Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
140
Resilience: Unit (Modulus of Resilience), kJ/m3 100
840
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 15
27
Strength to Weight: Bending, points 16
24
Thermal Diffusivity, mm2/s 6.7
4.1
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
24 to 26
Iron (Fe), % 84.9 to 89.5
58.1 to 65.9
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 0
4.0 to 5.0
Nickel (Ni), % 0 to 0.5
6.0 to 8.0
Nitrogen (N), % 0
0.1 to 0.3
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 0.040
Titanium (Ti), % 0 to 0.75
0