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EN 1.4740 Stainless Steel vs. AWS E330

Both EN 1.4740 stainless steel and AWS E330 are iron alloys. They have 64% of their average alloy composition in common. There are 21 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 EN 1.4740 stainless steel and the bottom bar is AWS E330.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 22
29
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
76

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Melting Completion (Liquidus), °C 1420
1400
Melting Onset (Solidus), °C 1370
1350
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 18
12
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
31
Density, g/cm3 7.6
8.1
Embodied Carbon, kg CO2/kg material 2.3
5.4
Embodied Energy, MJ/kg 32
75
Embodied Water, L/kg 120
180

Common Calculations

PREN (Pitting Resistance) 18
17
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Thermal Diffusivity, mm2/s 4.8
3.2

Alloy Composition

Carbon (C), % 0.3 to 0.5
0.18 to 0.25
Chromium (Cr), % 16 to 19
14 to 17
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 75.4 to 82.7
40.7 to 51.8
Manganese (Mn), % 0 to 1.0
1.0 to 2.5
Molybdenum (Mo), % 0 to 0.5
0 to 0.75
Nickel (Ni), % 0 to 1.0
33 to 37
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 1.0 to 2.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030