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AWS E307 vs. EN 1.4449 Stainless Steel

Both AWS E307 and EN 1.4449 stainless steel are iron alloys. They have a moderately high 95% 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 E307 and the bottom bar is EN 1.4449 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
48
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
78
Tensile Strength: Ultimate (UTS), MPa 660
620

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Melting Completion (Liquidus), °C 1420
1440
Melting Onset (Solidus), °C 1370
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 14
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 17
19
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.5
3.9
Embodied Energy, MJ/kg 49
54
Embodied Water, L/kg 160
150

Common Calculations

PREN (Pitting Resistance) 23
27
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24
22
Strength to Weight: Bending, points 22
20
Thermal Diffusivity, mm2/s 4.1
4.0
Thermal Shock Resistance, points 17
14

Alloy Composition

Carbon (C), % 0.040 to 0.14
0 to 0.035
Chromium (Cr), % 18 to 21.5
17 to 18.2
Copper (Cu), % 0 to 0.75
0 to 1.0
Iron (Fe), % 59.6 to 69.2
62.4 to 69.3
Manganese (Mn), % 3.3 to 4.8
0 to 2.0
Molybdenum (Mo), % 0.5 to 1.5
2.3 to 2.8
Nickel (Ni), % 9.0 to 10.7
11.5 to 12.5
Nitrogen (N), % 0
0 to 0.080
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015