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AWS E385 vs. AWS E330

Both AWS E385 and AWS E330 are iron alloys. Both are furnished in the as-welded condition. They have 89% of their average alloy composition in common.

For each property being compared, the top bar is AWS E385 and the bottom bar is AWS E330.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
29
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
76
Tensile Strength: Ultimate (UTS), MPa 580
580

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Melting Completion (Liquidus), °C 1440
1400
Melting Onset (Solidus), °C 1390
1350
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 14
12
Thermal Expansion, µm/m-K 14
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 31
31
Density, g/cm3 8.1
8.1
Embodied Carbon, kg CO2/kg material 5.8
5.4
Embodied Energy, MJ/kg 79
75
Embodied Water, L/kg 200
180

Common Calculations

PREN (Pitting Resistance) 36
17
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20
20
Strength to Weight: Bending, points 19
19
Thermal Diffusivity, mm2/s 3.6
3.2
Thermal Shock Resistance, points 15
16

Alloy Composition

Carbon (C), % 0 to 0.030
0.18 to 0.25
Chromium (Cr), % 19.5 to 21.5
14 to 17
Copper (Cu), % 1.2 to 2.0
0 to 0.75
Iron (Fe), % 41.8 to 50.1
40.7 to 51.8
Manganese (Mn), % 1.0 to 2.5
1.0 to 2.5
Molybdenum (Mo), % 4.2 to 5.2
0 to 0.75
Nickel (Ni), % 24 to 26
33 to 37
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.9
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030