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AWS E318 vs. S46500 Stainless Steel

Both AWS E318 and S46500 stainless steel are iron alloys. They have 88% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is AWS E318 and the bottom bar is S46500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 29
2.3 to 14
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
75
Tensile Strength: Ultimate (UTS), MPa 620
1260 to 1930

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 14
11

Otherwise Unclassified Properties

Base Metal Price, % relative 23
15
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 4.4
3.6
Embodied Energy, MJ/kg 62
51
Embodied Water, L/kg 160
120

Common Calculations

PREN (Pitting Resistance) 27
15
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
44 to 68
Strength to Weight: Bending, points 20
33 to 44
Thermal Shock Resistance, points 16
44 to 67

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.020
Chromium (Cr), % 17 to 20
11 to 12.5
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 57.6 to 69.5
72.6 to 76.1
Manganese (Mn), % 0.5 to 2.5
0 to 0.25
Molybdenum (Mo), % 2.0 to 3.0
0.75 to 1.3
Nickel (Ni), % 11 to 14
10.7 to 11.3
Niobium (Nb), % 0 to 1.0
0
Nitrogen (N), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 1.0
0 to 0.25
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
1.5 to 1.8