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AWS E330 vs. EN 1.4903 Stainless Steel

Both AWS E330 and EN 1.4903 stainless steel are iron alloys. They have 57% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is AWS E330 and the bottom bar is EN 1.4903 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 29
20 to 21
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 76
75
Tensile Strength: Ultimate (UTS), MPa 580
670 to 680

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1350
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 12
26
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
4.0

Otherwise Unclassified Properties

Base Metal Price, % relative 31
7.0
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 5.4
2.6
Embodied Energy, MJ/kg 75
36
Embodied Water, L/kg 180
88

Common Calculations

PREN (Pitting Resistance) 17
13
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20
24
Strength to Weight: Bending, points 19
22
Thermal Diffusivity, mm2/s 3.2
7.0
Thermal Shock Resistance, points 16
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Carbon (C), % 0.18 to 0.25
0.080 to 0.12
Chromium (Cr), % 14 to 17
8.0 to 9.5
Copper (Cu), % 0 to 0.75
0 to 0.3
Iron (Fe), % 40.7 to 51.8
87.1 to 90.5
Manganese (Mn), % 1.0 to 2.5
0.3 to 0.6
Molybdenum (Mo), % 0 to 0.75
0.85 to 1.1
Nickel (Ni), % 33 to 37
0 to 0.4
Niobium (Nb), % 0
0.060 to 0.1
Nitrogen (N), % 0
0.030 to 0.070
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.015
Vanadium (V), % 0
0.18 to 0.25