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AWS E308 vs. EN 1.4518 Stainless Steel

Both AWS E308 and EN 1.4518 stainless steel are iron alloys. They have a very high 96% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is AWS E308 and the bottom bar is EN 1.4518 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
34
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
79
Tensile Strength: Ultimate (UTS), MPa 620
490

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Melting Completion (Liquidus), °C 1420
1450
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 14
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 16
20
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.2
4.0
Embodied Energy, MJ/kg 46
55
Embodied Water, L/kg 150
160

Common Calculations

PREN (Pitting Resistance) 21
30
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
17
Strength to Weight: Bending, points 21
18
Thermal Diffusivity, mm2/s 4.2
4.1
Thermal Shock Resistance, points 16
14

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 18 to 21
18 to 20
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 62.9 to 72.5
61.4 to 70
Manganese (Mn), % 0.5 to 2.5
0 to 1.5
Molybdenum (Mo), % 0 to 0.75
3.0 to 3.5
Nickel (Ni), % 9.0 to 11
9.0 to 12
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.030