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AWS E330H vs. EN 1.4640 Stainless Steel

Both AWS E330H and EN 1.4640 stainless steel are iron alloys. They have 70% 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 E330H and the bottom bar is EN 1.4640 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11
51
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 690
620 to 650

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Melting Completion (Liquidus), °C 1400
1420
Melting Onset (Solidus), °C 1350
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 12
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 30
14
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 5.4
2.8
Embodied Energy, MJ/kg 76
40
Embodied Water, L/kg 180
150

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 24
22 to 23
Strength to Weight: Bending, points 22
21
Thermal Diffusivity, mm2/s 3.2
4.0
Thermal Shock Resistance, points 19
14 to 15

Alloy Composition

Carbon (C), % 0.35 to 0.45
0.030 to 0.080
Chromium (Cr), % 14 to 17
18 to 19
Copper (Cu), % 0 to 0.75
1.3 to 2.0
Iron (Fe), % 40.5 to 51.7
67.4 to 73.6
Manganese (Mn), % 1.0 to 2.5
1.5 to 4.0
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 33 to 37
5.5 to 6.9
Nitrogen (N), % 0
0.030 to 0.11
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.015