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AWS E318 vs. EN 1.4020 Stainless Steel

Both AWS E318 and EN 1.4020 stainless steel are iron alloys. They have 85% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is AWS E318 and the bottom bar is EN 1.4020 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 29
13 to 34
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
77
Tensile Strength: Ultimate (UTS), MPa 620
770 to 1130

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Melting Completion (Liquidus), °C 1440
1390
Melting Onset (Solidus), °C 1400
1350
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 14
17

Otherwise Unclassified Properties

Base Metal Price, % relative 23
11
Density, g/cm3 7.9
7.6
Embodied Carbon, kg CO2/kg material 4.4
2.5
Embodied Energy, MJ/kg 62
37
Embodied Water, L/kg 160
150

Common Calculations

PREN (Pitting Resistance) 27
23
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
28 to 41
Strength to Weight: Bending, points 20
25 to 32
Thermal Shock Resistance, points 16
16 to 23

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.15
Chromium (Cr), % 17 to 20
16.5 to 19
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 57.6 to 69.5
62.8 to 71.8
Manganese (Mn), % 0.5 to 2.5
11 to 14
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 11 to 14
0.5 to 2.5
Niobium (Nb), % 0 to 1.0
0
Nitrogen (N), % 0
0.2 to 0.45
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030