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AWS E318 vs. EN 1.4477 Stainless Steel

Both AWS E318 and EN 1.4477 stainless steel are iron alloys. They have 89% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is AWS E318 and the bottom bar is EN 1.4477 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 29
22 to 23
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 78
81
Tensile Strength: Ultimate (UTS), MPa 620
880 to 930

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 15
13
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 23
20
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 4.4
3.7
Embodied Energy, MJ/kg 62
52
Embodied Water, L/kg 160
190

Common Calculations

PREN (Pitting Resistance) 27
41
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
31 to 33
Strength to Weight: Bending, points 20
26 to 27
Thermal Diffusivity, mm2/s 4.0
3.5
Thermal Shock Resistance, points 16
23 to 25

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 17 to 20
28 to 30
Copper (Cu), % 0 to 0.75
0 to 0.8
Iron (Fe), % 57.6 to 69.5
56.6 to 63.6
Manganese (Mn), % 0.5 to 2.5
0.8 to 1.5
Molybdenum (Mo), % 2.0 to 3.0
1.5 to 2.6
Nickel (Ni), % 11 to 14
5.8 to 7.5
Niobium (Nb), % 0 to 1.0
0
Nitrogen (N), % 0
0.3 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.015