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AISI 416Se Stainless Steel vs. ACI-ASTM CA40 Steel

Both AISI 416Se stainless steel and ACI-ASTM CA40 steel are iron alloys. They have a very high 99% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is AISI 416Se stainless steel and the bottom bar is ACI-ASTM CA40 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
310
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23
10
Fatigue Strength, MPa 210
460
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Tensile Strength: Ultimate (UTS), MPa 540
910
Tensile Strength: Yield (Proof), MPa 310
860

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Maximum Temperature: Corrosion, °C 390
390
Maximum Temperature: Mechanical, °C 760
750
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1400
1500
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 30
25
Thermal Expansion, µm/m-K 10
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
7.5
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 1.9
2.0
Embodied Energy, MJ/kg 27
28
Embodied Water, L/kg 100
100

Common Calculations

PREN (Pitting Resistance) 13
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
89
Resilience: Unit (Modulus of Resilience), kJ/m3 250
1910
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20
33
Strength to Weight: Bending, points 19
27
Thermal Diffusivity, mm2/s 8.1
6.7
Thermal Shock Resistance, points 20
33

Alloy Composition

Carbon (C), % 0 to 0.15
0.2 to 0.4
Chromium (Cr), % 12 to 14
11.5 to 14
Iron (Fe), % 83.1 to 87.9
81.5 to 88.3
Manganese (Mn), % 0 to 1.3
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.060
0 to 0.040
Selenium (Se), % 0.15 to 0.35
0
Silicon (Si), % 0 to 1.0
0 to 1.5
Sulfur (S), % 0 to 0.060
0 to 0.040