MMA electrode – This electrode is made on a nearly matching core wire with a basic flux system designed to produce optimum operability and radiographically sound weld metal. Nimrod 182KS is optimised for DC+welding in all positions including pipework qualified in the ASME 6G position. Recovery is about 120% with respect to the core wire, and 65% with respect to the whole electrode.
Applications
These weld metals have no directly equivalent parent material, although the composition is related to Inconel™ 600. Mn and Nb are added to give high resistance to hot cracking, and tolerance to dilution by many combinations of nickel-base and ferrous alloys, with stable properties over a wide range of service temperatures from –269°C to above 900°C. Applications include heat-resisting nickel-base alloys to themselves for use in furnace equipment up to about 900°C. Other applications include Mixed welds between most nickel-base alloys, including Monel 400 and stainless, low alloy or CMn steels without the need to preheat. Transition welds between creep-resisting ferritic and austenitic steels, such as 2CrMo and 316H for long-term service at elevated temperatures in petrochemical and power generation plants. Low-temperature applications such as 3% or 5% Ni steels are used for cryogenic vessels and pipework in service at or below –100°C. Stress relief may be carried out if required.
Specification
AWS A5.11: ENiCrFe-3
BS EN 14172: ENi6182
DIN 1736 (Werkstoff No): EL-NiCr15FeMn (2.4807)