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AWS E330H vs. AWS E2594

Both AWS E330H and AWS E2594 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 E330H and the bottom bar is AWS E2594.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 11
17
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 76
81
Tensile Strength: Ultimate (UTS), MPa 690
850

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Melting Completion (Liquidus), °C 1400
1440
Melting Onset (Solidus), °C 1350
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 12
16
Thermal Expansion, µm/m-K 13
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 30
22
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 5.4
4.3
Embodied Energy, MJ/kg 76
60
Embodied Water, L/kg 180
190

Common Calculations

PREN (Pitting Resistance) 17
43
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24
30
Strength to Weight: Bending, points 22
25
Thermal Diffusivity, mm2/s 3.2
4.3
Thermal Shock Resistance, points 19
21

Alloy Composition

Carbon (C), % 0.35 to 0.45
0 to 0.040
Chromium (Cr), % 14 to 17
24 to 27
Copper (Cu), % 0 to 0.75
0 to 0.75
Iron (Fe), % 40.5 to 51.7
53.8 to 63.8
Manganese (Mn), % 1.0 to 2.5
0.5 to 2.0
Molybdenum (Mo), % 0 to 0.75
3.5 to 4.5
Nickel (Ni), % 33 to 37
8.0 to 10.5
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030