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AWS E309 vs. EN 1.4477 Stainless Steel

Both AWS E309 and EN 1.4477 stainless steel are iron alloys. They have a moderately high 92% 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 1.4477 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 34
22 to 23
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 78
81
Tensile Strength: Ultimate (UTS), MPa 620
880 to 930

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Melting Completion (Liquidus), °C 1410
1430
Melting Onset (Solidus), °C 1370
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
13
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 20
20
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.7
3.7
Embodied Energy, MJ/kg 52
52
Embodied Water, L/kg 180
190

Common Calculations

PREN (Pitting Resistance) 25
41
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
31 to 33
Strength to Weight: Bending, points 21
26 to 27
Thermal Diffusivity, mm2/s 4.0
3.5
Thermal Shock Resistance, points 16
23 to 25

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.030
Chromium (Cr), % 22 to 25
28 to 30
Copper (Cu), % 0 to 0.75
0 to 0.8
Iron (Fe), % 55.8 to 65.5
56.6 to 63.6
Manganese (Mn), % 0.5 to 2.5
0.8 to 1.5
Molybdenum (Mo), % 0 to 0.75
1.5 to 2.6
Nickel (Ni), % 12 to 14
5.8 to 7.5
Nitrogen (N), % 0
0.3 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.015