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AISI 416 Stainless Steel vs. ACI-ASTM CE8MN Steel

Both AISI 416 stainless steel and ACI-ASTM CE8MN steel are iron alloys. They have 75% of their average alloy composition in common. There are 31 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 416 stainless steel and the bottom bar is ACI-ASTM CE8MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 13 to 31
29
Fatigue Strength, MPa 230 to 340
370
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
80
Tensile Strength: Ultimate (UTS), MPa 510 to 800
750
Tensile Strength: Yield (Proof), MPa 290 to 600
500

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Corrosion, °C 390
440
Maximum Temperature: Mechanical, °C 680
1100
Melting Completion (Liquidus), °C 1530
1440
Melting Onset (Solidus), °C 1480
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 30
16
Thermal Expansion, µm/m-K 9.9
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 7.0
21
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 1.9
4.2
Embodied Energy, MJ/kg 27
58
Embodied Water, L/kg 100
180

Common Calculations

PREN (Pitting Resistance) 13
40
Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 140
190
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 940
620
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18 to 29
27
Strength to Weight: Bending, points 18 to 25
23
Thermal Diffusivity, mm2/s 8.1
4.2
Thermal Shock Resistance, points 19 to 30
21

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.080
Chromium (Cr), % 12 to 14
22.5 to 25.5
Iron (Fe), % 83.2 to 87.9
56 to 66.4
Manganese (Mn), % 0 to 1.3
0 to 1.0
Molybdenum (Mo), % 0
3.0 to 4.5
Nickel (Ni), % 0
8.0 to 11
Nitrogen (N), % 0
0.1 to 0.3
Phosphorus (P), % 0 to 0.060
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.5
Sulfur (S), % 0.15 to 0.35
0 to 0.040