UNS N02215
AWS A5.15
Corrosion-Resistant Alloy used for welding of cast irons to other cast irons as well as for joining cast irons to mild steels and stainless steels. Readily used for the repair of castings

Ni 99 (AWS class ERNi-CI) is a nominally 99% Nickel wire. Nickel is expensive, and so, therefore, is this premium wire. The wire will deposit welds that are machine-able, an important consideration when the casting is to be machined after welding. Repairs made with Ni 99 are often single pass welds with high admixture. Even with high admixture, the weld deposit will remain machine-able. It works best on castings with low or medium phosphorous contents.

Chemical composition

NickelNi min 90.0% IronFe4.0% CopperCu4.0% ManganeseMn2.5% CarbonCmax 1.0% Silicon Simax 0.75%

Mechanical properties

Tensile strength Rm (MPa) Yield strength Rp0.2 (MPa) Elongation A %
276-448 (40-64 psi) 262-414 (40-64 psi) 3-6

Product forms

Product Diameter, mm Length, mm
Wire for MIG/GMAW welding 0.8, 1.0, 1.2, 1.6, 2.0, 2.4, 2.5, 3.2
Rods for TIG/GTAW welding 2.0, 2.5, 3.2, 4.0, 5.0 915 – 1000
Wire for SAW welding 2.0, 2.4, 3.2, 4.0, 5.0
Electrode core wire 2.0, 2.5, 3.20, 3.25, 4.0, 5.0 250, 300, 350, 400, 450, 500


Binary Nickel-Iron (Ni-Fe) and Ni based complex welding alloys are supplied in welding rod and wires in standard length or length up to the consumers' request. For normal service conditions, the chemical compositions are available in various Ni contents according to the most of American and European standards.

Our customers can buy ERNi-CI online according to their requests.

 Datasheet welding consumable.  Download(181KB)