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AWS E430 vs. AWS E330

Both AWS E430 and AWS E330 are iron alloys. They have 64% of their average alloy composition in common.

For each property being compared, the top bar is AWS E430 and the bottom bar is AWS E330.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23
29
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 500
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 480
470
Thermal Conductivity, W/m-K 25
12
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
31
Density, g/cm3 7.7
8.1
Embodied Carbon, kg CO2/kg material 2.2
5.4
Embodied Energy, MJ/kg 31
75
Embodied Water, L/kg 120
180

Common Calculations

PREN (Pitting Resistance) 18
17
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
20
Strength to Weight: Bending, points 18
19
Thermal Diffusivity, mm2/s 6.7
3.2
Thermal Shock Resistance, points 13
16

Alloy Composition

Carbon (C), % 0 to 0.1
0.18 to 0.25
Chromium (Cr), % 15 to 18
14 to 17
Copper (Cu), % 0 to 0.75
0 to 0.75
Iron (Fe), % 77.8 to 85
40.7 to 51.8
Manganese (Mn), % 0 to 1.0
1.0 to 2.5
Molybdenum (Mo), % 0 to 0.75
0 to 0.75
Nickel (Ni), % 0 to 0.6
33 to 37
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.9
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030