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AWS E309 vs. EN 1.4659 Stainless Steel

Both AWS E309 and EN 1.4659 stainless steel are iron alloys. They have 80% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is AWS E309 and the bottom bar is EN 1.4659 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 34
49
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 78
81
Tensile Strength: Ultimate (UTS), MPa 620
900

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Melting Completion (Liquidus), °C 1410
1480
Melting Onset (Solidus), °C 1370
1430
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 15
12
Thermal Expansion, µm/m-K 14
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 20
37
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 3.7
6.5
Embodied Energy, MJ/kg 52
89
Embodied Water, L/kg 180
220

Common Calculations

PREN (Pitting Resistance) 25
54
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
31
Strength to Weight: Bending, points 21
25
Thermal Diffusivity, mm2/s 4.0
3.2
Thermal Shock Resistance, points 16
19

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.020
Chromium (Cr), % 22 to 25
23 to 25
Copper (Cu), % 0 to 0.75
1.0 to 2.0
Iron (Fe), % 55.8 to 65.5
35.7 to 45.7
Manganese (Mn), % 0.5 to 2.5
2.0 to 4.0
Molybdenum (Mo), % 0 to 0.75
5.5 to 6.5
Nickel (Ni), % 12 to 14
21 to 23
Nitrogen (N), % 0
0.35 to 0.5
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.7
Sulfur (S), % 0 to 0.030
0 to 0.010
Tungsten (W), % 0
1.5 to 2.5