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AWS E330 vs. EN 1.4371 Stainless Steel

Both AWS E330 and EN 1.4371 stainless steel are iron alloys. They have 69% 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 1.4371 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 29
45 to 51
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 580
740 to 750

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Melting Completion (Liquidus), °C 1400
1410
Melting Onset (Solidus), °C 1350
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 12
15
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 31
12
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 5.4
2.6
Embodied Energy, MJ/kg 75
38
Embodied Water, L/kg 180
140

Common Calculations

PREN (Pitting Resistance) 17
20
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20
27
Strength to Weight: Bending, points 19
24
Thermal Diffusivity, mm2/s 3.2
4.0
Thermal Shock Resistance, points 16
16

Alloy Composition

Carbon (C), % 0.18 to 0.25
0 to 0.030
Chromium (Cr), % 14 to 17
16 to 17.5
Copper (Cu), % 0 to 0.75
0 to 1.0
Iron (Fe), % 40.7 to 51.8
66.7 to 74.4
Manganese (Mn), % 1.0 to 2.5
6.0 to 8.0
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 33 to 37
3.5 to 5.5
Nitrogen (N), % 0
0.15 to 0.25
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