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EN 1.4938 Stainless Steel vs. AWS E209

Both EN 1.4938 stainless steel and AWS E209 are iron alloys. They have 75% 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 EN 1.4938 stainless steel and the bottom bar is AWS E209.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 16 to 17
17
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
79
Tensile Strength: Ultimate (UTS), MPa 870 to 1030
770

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 11
14

Otherwise Unclassified Properties

Base Metal Price, % relative 10
21
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.3
4.4
Embodied Energy, MJ/kg 47
63
Embodied Water, L/kg 110
180

Common Calculations

PREN (Pitting Resistance) 18
33
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 31 to 37
28
Strength to Weight: Bending, points 26 to 29
24
Thermal Shock Resistance, points 30 to 35
19

Alloy Composition

Carbon (C), % 0.080 to 0.15
0 to 0.060
Chromium (Cr), % 11 to 12.5
20.5 to 24
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 80.5 to 84.8
51.5 to 64.3
Manganese (Mn), % 0.4 to 0.9
4.0 to 7.0
Molybdenum (Mo), % 1.5 to 2.0
1.5 to 3.0
Nickel (Ni), % 2.0 to 3.0
9.5 to 12
Nitrogen (N), % 0.020 to 0.040
0.1 to 0.3
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Vanadium (V), % 0.25 to 0.4
0.1 to 0.3