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EN 1.4658 Stainless Steel vs. AWS E318

Both EN 1.4658 stainless steel and AWS E318 are iron alloys. They have 87% of their average alloy composition in common. There are 23 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 EN 1.4658 stainless steel and the bottom bar is AWS E318.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 28
29
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 81
78
Tensile Strength: Ultimate (UTS), MPa 900
620

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 13
14

Otherwise Unclassified Properties

Base Metal Price, % relative 25
23
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 4.5
4.4
Embodied Energy, MJ/kg 61
62
Embodied Water, L/kg 200
160

Common Calculations

PREN (Pitting Resistance) 49
27
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 32
22
Strength to Weight: Bending, points 26
20
Thermal Diffusivity, mm2/s 4.3
4.0
Thermal Shock Resistance, points 24
16

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 26 to 29
17 to 20
Cobalt (Co), % 0.5 to 2.0
0
Copper (Cu), % 0 to 1.0
0 to 0.75
Iron (Fe), % 50.9 to 63.7
57.6 to 69.5
Manganese (Mn), % 0 to 1.5
0.5 to 2.5
Molybdenum (Mo), % 4.0 to 5.0
2.0 to 3.0
Nickel (Ni), % 5.5 to 9.5
11 to 14
Niobium (Nb), % 0
0 to 1.0
Nitrogen (N), % 0.3 to 0.5
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030