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AWS ERNiMo-3 Weld Metal

AWS ERNiMo-3 is a nickel-based filler metal for welding. Cited properties are appropriate for the as-welded condition. It has the highest melting temperature and a fairly high embodied energy among nickel-based welding fillers.

The graph bars on the material properties cards below compare AWS ERNiMo-3 to: nickel-based welding fillers (top), all nickel alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.

Mechanical Properties

Elastic (Young's, Tensile) Modulus

220 GPa 32 x 106 psi

Poisson's Ratio

0.3

Shear Modulus

83 GPa 12 x 106 psi

Tensile Strength: Ultimate (UTS)

770 MPa 110 x 103 psi

Thermal Properties

Latent Heat of Fusion

320 J/g

Melting Completion (Liquidus)

1600 °C 2900 °F

Melting Onset (Solidus)

1540 °C 2800 °F

Specific Heat Capacity

400 J/kg-K 0.1 BTU/lb-°F

Thermal Expansion

11 µm/m-K

Otherwise Unclassified Properties

Base Metal Price

70 % relative

Density

9.1 g/cm3 570 lb/ft3

Embodied Carbon

15 kg CO2/kg material

Embodied Energy

190 MJ/kg 82 x 103 BTU/lb

Embodied Water

270 L/kg 32 gal/lb

Common Calculations

Stiffness to Weight: Axial

13 points

Stiffness to Weight: Bending

22 points

Strength to Weight: Axial

24 points

Strength to Weight: Bending

21 points

Thermal Shock Resistance

24 points

Alloy Composition

Nickel (Ni) 53.7 to 69
Molybdenum (Mo) 23 to 26
Iron (Fe) 4.0 to 7.0
Chromium (Cr) 4.0 to 6.0
Cobalt (Co) 0 to 2.5
Manganese (Mn) 0 to 1.0
Silicon (Si) 0 to 1.0
Tungsten (W) 0 to 1.0
Vanadium (V) 0 to 0.6
Copper (Cu) 0 to 0.5
Carbon (C) 0 to 0.12
Phosphorus (P) 0 to 0.040
Sulfur (S) 0 to 0.030
Residuals 0 to 0.5

All values are % weight. Ranges represent what is permitted under applicable standards.

Followup Questions

Similar Alloys

Further Reading

AWS A5.14: Specification for Nickel and Nickel-Alloy Bare Welding Electrodes and Rods