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EN 1.4938 Stainless Steel vs. AWS E16-8-2

Both EN 1.4938 stainless steel and AWS E16-8-2 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 (7, 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 E16-8-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 16 to 17
40
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 870 to 1030
620

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 30
16
Thermal Expansion, µm/m-K 11
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 10
15
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.3
3.2
Embodied Energy, MJ/kg 47
45
Embodied Water, L/kg 110
140

Common Calculations

PREN (Pitting Resistance) 18
20
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 31 to 37
22
Strength to Weight: Bending, points 26 to 29
20
Thermal Diffusivity, mm2/s 8.1
4.2
Thermal Shock Resistance, points 30 to 35
16

Alloy Composition

Carbon (C), % 0.080 to 0.15
0 to 0.1
Chromium (Cr), % 11 to 12.5
14.5 to 16.5
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 80.5 to 84.8
68 to 76.5
Manganese (Mn), % 0.4 to 0.9
0.5 to 2.5
Molybdenum (Mo), % 1.5 to 2.0
1.0 to 2.0
Nickel (Ni), % 2.0 to 3.0
7.5 to 9.5
Nitrogen (N), % 0.020 to 0.040
0
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 0.6
Sulfur (S), % 0 to 0.015
0 to 0.030
Vanadium (V), % 0.25 to 0.4
0