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AWS E330H vs. S31266 Stainless Steel

Both AWS E330H and S31266 stainless steel are iron alloys. They have 81% 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 S31266 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 11
40
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 76
81
Tensile Strength: Ultimate (UTS), MPa 690
860

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Melting Completion (Liquidus), °C 1400
1470
Melting Onset (Solidus), °C 1350
1420
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 12
12
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 30
37
Density, g/cm3 8.1
8.2
Embodied Carbon, kg CO2/kg material 5.4
6.5
Embodied Energy, MJ/kg 76
89
Embodied Water, L/kg 180
220

Common Calculations

PREN (Pitting Resistance) 17
54
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24
29
Strength to Weight: Bending, points 22
24
Thermal Diffusivity, mm2/s 3.2
3.1
Thermal Shock Resistance, points 19
18

Alloy Composition

Carbon (C), % 0.35 to 0.45
0 to 0.030
Chromium (Cr), % 14 to 17
23 to 25
Copper (Cu), % 0 to 0.75
1.0 to 2.5
Iron (Fe), % 40.5 to 51.7
34.1 to 46
Manganese (Mn), % 1.0 to 2.5
2.0 to 4.0
Molybdenum (Mo), % 0 to 0.75
5.2 to 6.2
Nickel (Ni), % 33 to 37
21 to 24
Nitrogen (N), % 0
0.35 to 0.6
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.020
Tungsten (W), % 0
1.5 to 2.5