A CHEMICALLY BASIC FLUX COATED MMA ELECTRODE DEPOSITING A NICKEL BASED ALLOY HIGH IN BOTH CHROMIUM AND MOLYDENIUM
NCM-6
CLASSIFICATION
AWS A5.11 ENiCrMo-6 | BS EN ISO 14172 E Ni 6620 | JIS Z 3225 D9Ni-1
PRODUCT DESCRIPTION
The chemically basic flux is extruded onto a pure nickel core wire. The flux contains chrome & iron also other remaining alloying elements together with alloys for deoxidation and grain refinement. The blend of silicates used during electrode production ensure both coating strength and resistance to subsequent moisture absorption.
WELDING FEATURES OF THE ELECTRODE
The electrode is suitable for use on both AC and DC+ and welds with great arc stability and thus control of the molten weld pool. Slag detachability is good. The weld beads are bright and evenly rippled with fillet welds slightly convex. Strike and re-strike should be made with the established back step technique.
APPLICATIONS AND MATERIALS TO BE WELDED
As the weld metal has excellent cryogenic properties, both toughness and lateral expansion, it is ideal for welding 9% Nickel operating up to -196 ºC and conforming to ASTM A353, A533, UNS K81340 and K71340. Also suitable for 5% nickel steels including ASTM A645 and A352 LC4 (cast).
WELDING AMPERAGE AC and DC
OTHER DATA
Electrodes that have become damp should be re-dried at 180oC for 1 hour.
