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AISI 418 Stainless Steel vs. AWS E80C-B2

Both AISI 418 stainless steel and AWS E80C-B2 are iron alloys. They have 83% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is AISI 418 stainless steel and the bottom bar is AWS E80C-B2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 17
22
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 1100
630
Tensile Strength: Yield (Proof), MPa 850
530

Thermal Properties

Latent Heat of Fusion, J/g 270
260
Melting Completion (Liquidus), °C 1500
1460
Melting Onset (Solidus), °C 1460
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 25
39
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 15
3.0
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 2.9
1.6
Embodied Energy, MJ/kg 41
22
Embodied Water, L/kg 110
53

Common Calculations

PREN (Pitting Resistance) 19
3.0
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
130
Resilience: Unit (Modulus of Resilience), kJ/m3 1830
740
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 38
22
Strength to Weight: Bending, points 29
21
Thermal Diffusivity, mm2/s 6.7
11
Thermal Shock Resistance, points 40
18

Alloy Composition

Carbon (C), % 0.15 to 0.2
0.050 to 0.12
Chromium (Cr), % 12 to 14
1.0 to 1.5
Iron (Fe), % 78.5 to 83.6
95.3 to 97.9
Manganese (Mn), % 0 to 0.5
0.4 to 1.0
Molybdenum (Mo), % 0 to 0.5
0.4 to 0.65
Nickel (Ni), % 1.8 to 2.2
0 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.5
0.25 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 2.5 to 3.5
0
Vanadium (V), % 0
0 to 0.030
Residuals, % 0
0 to 0.5