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AWS E2594 vs. EN 1.4490 Stainless Steel

Both AWS E2594 and EN 1.4490 stainless steel are iron alloys. They have a moderately high 91% 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 AWS E2594 and the bottom bar is EN 1.4490 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 17
34
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 81
78
Tensile Strength: Ultimate (UTS), MPa 850
560

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 14
12

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 22
19
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.3
3.7
Embodied Energy, MJ/kg 60
52
Embodied Water, L/kg 190
150

Common Calculations

PREN (Pitting Resistance) 43
29
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 30
20
Strength to Weight: Bending, points 25
19
Thermal Diffusivity, mm2/s 4.3
4.1
Thermal Shock Resistance, points 21
16

Alloy Composition

Carbon (C), % 0 to 0.040
0 to 0.030
Chromium (Cr), % 24 to 27
18 to 20
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 53.8 to 63.8
61.7 to 70.9
Manganese (Mn), % 0.5 to 2.0
0 to 2.0
Molybdenum (Mo), % 3.5 to 4.5
2.0 to 2.5
Nickel (Ni), % 8.0 to 10.5
9.0 to 12
Nitrogen (N), % 0.2 to 0.3
0.12 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.030