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AWS ERNiCrMo-3 Weld Metal

AWS ERNiCrMo-3 is a nickel-based filler metal for welding. Cited properties are appropriate for the as-welded condition. It has a very high base cost among nickel-based welding fillers. In addition, it has a fairly high embodied energy and a fairly high tensile strength.

The graph bars on the material properties cards below compare AWS ERNiCrMo-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

200 GPa 30 x 106 psi

Elongation at Break

34 %

Poisson's Ratio

0.29

Shear Modulus

79 GPa 11 x 106 psi

Tensile Strength: Ultimate (UTS)

870 MPa 130 x 103 psi

Thermal Properties

Latent Heat of Fusion

330 J/g

Melting Completion (Liquidus)

1480 °C 2690 °F

Melting Onset (Solidus)

1430 °C 2600 °F

Specific Heat Capacity

440 J/kg-K 0.1 BTU/lb-°F

Thermal Conductivity

11 W/m-K 6.1 BTU/h-ft-°F

Thermal Expansion

12 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

1.3 % IACS

Electrical Conductivity: Equal Weight (Specific)

1.4 % IACS

Otherwise Unclassified Properties

Base Metal Price

80 % relative

Density

8.6 g/cm3 530 lb/ft3

Embodied Carbon

14 kg CO2/kg material

Embodied Energy

190 MJ/kg 83 x 103 BTU/lb

Embodied Water

290 L/kg 34 gal/lb

Common Calculations

Stiffness to Weight: Axial

13 points

Stiffness to Weight: Bending

23 points

Strength to Weight: Axial

28 points

Strength to Weight: Bending

24 points

Thermal Diffusivity

2.8 mm2/s

Thermal Shock Resistance

25 points

Alloy Composition

Nickel (Ni) 58 to 68.9
Chromium (Cr) 20 to 23
Molybdenum (Mo) 8.0 to 10
Niobium (Nb) 3.2 to 4.2
Iron (Fe) 0 to 5.0
Manganese (Mn) 0 to 0.5
Silicon (Si) 0 to 0.5
Copper (Cu) 0 to 0.5
Aluminum (Al) 0 to 0.4
Titanium (Ti) 0 to 0.4
Phosphorus (P) 0 to 0.020
Sulfur (S) 0 to 0.015
Carbon (C) 0 to 0.010
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