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AWS ENiCrMo-4 (W80276) Weld Metal

AWS ENiCrMo-4 is a nickel-based filler metal for welding. Cited properties are appropriate for the as-welded condition. ENiCrMo-4 is the AWS designation for this material. W80276 is the UNS number.

It has a fairly high melting temperature among nickel-based welding fillers. In addition, it has a moderately high tensile strength and a moderately high embodied energy.

The graph bars on the material properties cards below compare AWS ENiCrMo-4 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 31 x 106 psi

Elongation at Break

28 %

Poisson's Ratio

0.29

Shear Modulus

84 GPa 12 x 106 psi

Tensile Strength: Ultimate (UTS)

790 MPa 110 x 103 psi

Thermal Properties

Latent Heat of Fusion

320 J/g

Melting Completion (Liquidus)

1590 °C 2890 °F

Melting Onset (Solidus)

1530 °C 2790 °F

Specific Heat Capacity

410 J/kg-K 0.1 BTU/lb-°F

Thermal Expansion

12 µm/m-K

Otherwise Unclassified Properties

Base Metal Price

70 % relative

Density

9.0 g/cm3 560 lb/ft3

Embodied Carbon

13 kg CO2/kg material

Embodied Energy

170 MJ/kg 74 x 103 BTU/lb

Embodied Water

280 L/kg 34 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

22 points

Alloy Composition

Nickel (Ni) 49.9 to 63.5
Molybdenum (Mo) 15 to 17
Chromium (Cr) 14.5 to 16.5
Iron (Fe) 4.0 to 7.0
Tungsten (W) 3.0 to 4.5
Cobalt (Co) 0 to 2.5
Manganese (Mn) 0 to 1.0
Copper (Cu) 0 to 0.5
Vanadium (V) 0 to 0.35
Silicon (Si) 0 to 0.2
Phosphorus (P) 0 to 0.040
Sulfur (S) 0 to 0.030
Carbon (C) 0 to 0.020
Residuals 0 to 0.5

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

Followup Questions

Similar Alloys

Further Reading

AWS A5.11: Specification for Nickel and Nickel Alloy Welding Electrodes for Shielded Metal Arc Welding