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AWS E16-8-2 vs. AWS E330

Both AWS E16-8-2 and AWS E330 are iron alloys. Both are furnished in the as-welded condition. They have 73% of their average alloy composition in common.

For each property being compared, the top bar is AWS E16-8-2 and the bottom bar is AWS E330.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
29
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 620
580

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Melting Completion (Liquidus), °C 1440
1400
Melting Onset (Solidus), °C 1400
1350
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
12
Thermal Expansion, µm/m-K 14
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 15
31
Density, g/cm3 7.9
8.1
Embodied Carbon, kg CO2/kg material 3.2
5.4
Embodied Energy, MJ/kg 45
75
Embodied Water, L/kg 140
180

Common Calculations

PREN (Pitting Resistance) 20
17
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
20
Strength to Weight: Bending, points 20
19
Thermal Diffusivity, mm2/s 4.2
3.2
Thermal Shock Resistance, points 16
16

Alloy Composition

Carbon (C), % 0 to 0.1
0.18 to 0.25
Chromium (Cr), % 14.5 to 16.5
14 to 17
Copper (Cu), % 0 to 0.75
0 to 0.75
Iron (Fe), % 68 to 76.5
40.7 to 51.8
Manganese (Mn), % 0.5 to 2.5
1.0 to 2.5
Molybdenum (Mo), % 1.0 to 2.0
0 to 0.75
Nickel (Ni), % 7.5 to 9.5
33 to 37
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030