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AWS E385 vs. AWS E2594

Both AWS E385 and AWS E2594 are iron alloys. Both are furnished in the as-welded condition. They have 82% of their average alloy composition in common.

For each property being compared, the top bar is AWS E385 and the bottom bar is AWS E2594.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 34
17
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 79
81
Tensile Strength: Ultimate (UTS), MPa 580
850

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1390
1400
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 14
16
Thermal Expansion, µm/m-K 14
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 31
22
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 5.8
4.3
Embodied Energy, MJ/kg 79
60
Embodied Water, L/kg 200
190

Common Calculations

PREN (Pitting Resistance) 36
43
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20
30
Strength to Weight: Bending, points 19
25
Thermal Diffusivity, mm2/s 3.6
4.3
Thermal Shock Resistance, points 15
21

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.040
Chromium (Cr), % 19.5 to 21.5
24 to 27
Copper (Cu), % 1.2 to 2.0
0 to 0.75
Iron (Fe), % 41.8 to 50.1
53.8 to 63.8
Manganese (Mn), % 1.0 to 2.5
0.5 to 2.0
Molybdenum (Mo), % 4.2 to 5.2
3.5 to 4.5
Nickel (Ni), % 24 to 26
8.0 to 10.5
Nitrogen (N), % 0
0.2 to 0.3
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