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AWS E385 vs. EN 1.4640 Stainless Steel

Both AWS E385 and EN 1.4640 stainless steel are iron alloys. They have 74% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is AWS E385 and the bottom bar is EN 1.4640 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
51
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
77
Tensile Strength: Ultimate (UTS), MPa 580
620 to 650

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Melting Completion (Liquidus), °C 1440
1420
Melting Onset (Solidus), °C 1390
1380
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 14
15
Thermal Expansion, µm/m-K 14
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 31
14
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 5.8
2.8
Embodied Energy, MJ/kg 79
40
Embodied Water, L/kg 200
150

Common Calculations

PREN (Pitting Resistance) 36
20
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20
22 to 23
Strength to Weight: Bending, points 19
21
Thermal Diffusivity, mm2/s 3.6
4.0
Thermal Shock Resistance, points 15
14 to 15

Alloy Composition

Carbon (C), % 0 to 0.030
0.030 to 0.080
Chromium (Cr), % 19.5 to 21.5
18 to 19
Copper (Cu), % 1.2 to 2.0
1.3 to 2.0
Iron (Fe), % 41.8 to 50.1
67.4 to 73.6
Manganese (Mn), % 1.0 to 2.5
1.5 to 4.0
Molybdenum (Mo), % 4.2 to 5.2
0
Nickel (Ni), % 24 to 26
5.5 to 6.9
Nitrogen (N), % 0
0.030 to 0.11
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0 to 0.9
0 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.015