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AWS E2595 vs. AWS E330

Both AWS E2595 and AWS E330 are iron alloys. Both are furnished in the as-welded condition. They have 74% of their average alloy composition in common.

For each property being compared, the top bar is AWS E2595 and the bottom bar is AWS E330.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 17
29
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
76
Tensile Strength: Ultimate (UTS), MPa 850
580

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Melting Completion (Liquidus), °C 1450
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 2.2
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 23
31
Density, g/cm3 7.9
8.1
Embodied Carbon, kg CO2/kg material 4.4
5.4
Embodied Energy, MJ/kg 61
75
Embodied Water, L/kg 190
180

Common Calculations

PREN (Pitting Resistance) 42
17
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 30
20
Strength to Weight: Bending, points 25
19
Thermal Diffusivity, mm2/s 4.2
3.2
Thermal Shock Resistance, points 21
16

Alloy Composition

Carbon (C), % 0 to 0.040
0.18 to 0.25
Chromium (Cr), % 24 to 27
14 to 17
Copper (Cu), % 0.4 to 1.5
0 to 0.75
Iron (Fe), % 51.4 to 64.5
40.7 to 51.8
Manganese (Mn), % 0 to 2.5
1.0 to 2.5
Molybdenum (Mo), % 2.5 to 4.5
0 to 0.75
Nickel (Ni), % 8.0 to 10.5
33 to 37
Nitrogen (N), % 0.2 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 1.2
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.030
Tungsten (W), % 0.4 to 1.0
0