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AWS ERNiFeCr-2 Weld Metal

AWS ERNiFeCr-2 is a nickel-based filler metal for welding. Cited properties are appropriate for the post-weld heat treated (PWHT) condition. It has a fairly high embodied energy among nickel-based welding fillers. In addition, it has the highest tensile strength and a moderately high base cost.

The graph bars on the material properties cards below compare AWS ERNiFeCr-2 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

190 GPa 28 x 106 psi

Elongation at Break

28 %

Poisson's Ratio

0.29

Shear Modulus

75 GPa 11 x 106 psi

Tensile Strength: Ultimate (UTS)

1300 MPa 190 x 103 psi

Thermal Properties

Latent Heat of Fusion

310 J/g

Melting Completion (Liquidus)

1460 °C 2660 °F

Melting Onset (Solidus)

1410 °C 2570 °F

Specific Heat Capacity

450 J/kg-K 0.11 BTU/lb-°F

Thermal Conductivity

12 W/m-K 7.0 BTU/h-ft-°F

Thermal Expansion

13 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

1.4 % IACS

Electrical Conductivity: Equal Weight (Specific)

1.5 % IACS

Otherwise Unclassified Properties

Base Metal Price

75 % relative

Density

8.3 g/cm3 520 lb/ft3

Embodied Carbon

13 kg CO2/kg material

Embodied Energy

190 MJ/kg 80 x 103 BTU/lb

Embodied Water

250 L/kg 30 gal/lb

Common Calculations

Stiffness to Weight: Axial

13 points

Stiffness to Weight: Bending

23 points

Strength to Weight: Axial

43 points

Strength to Weight: Bending

32 points

Thermal Diffusivity

3.2 mm2/s

Thermal Shock Resistance

38 points

Alloy Composition

Nickel (Ni) 50 to 55
Chromium (Cr) 17 to 21
Iron (Fe) 11.6 to 24.6
Niobium (Nb) 4.8 to 5.5
Molybdenum (Mo) 2.8 to 3.3
Titanium (Ti) 0.65 to 1.2
Aluminum (Al) 0.2 to 0.8
Manganese (Mn) 0 to 0.35
Silicon (Si) 0 to 0.35
Copper (Cu) 0 to 0.3
Carbon (C) 0 to 0.080
Phosphorus (P) 0 to 0.015
Sulfur (S) 0 to 0.015
Boron (B) 0 to 0.0030
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