Nikko Steel Kawat Las Elektroda For Nickel Based Alloys NCM-622

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1. MANUFACTURERS OF A DIVERSE RANGE OF ADVANCED WELDING CONSUMABLES SECTION 7 NCM-622 A CHEMICALLY BASIC FLUX COATED MMA ELECTRODE FOR WELDING CORROSION RESISTANT ALLOY DATA SHEET NO. 93 SPECIFICATION AWS A5.11 BS EN ISO 14172 CLASSIFICATION ENiCrMo-10 E Ni 6022 PRODUCT DESCRIPTION The chemically basic flux is extruded onto a high purity nickel chromium core wire. The flux contains the 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 For Welding the following alloys: A494 CX 2MW (cast) UNS No 6022 (often referred to as Alloy C22) ASTM UNS N06455 Proprietary alloys include: HASTELLOY C22 and C4 (Haynes NiCroFer 5621h HW (VDM) May also be used for welding superaustenitics such as B66 (Uranus), 654SMo (Avesta) and these to NiCrMo alloys. WELD METAL ANALYSIS COMPOSITION % BY Wt. C Mn Si S P Cr Cu Mo V W Fe Co Ni MIN - - - - - 20 - 12.5 - 2.5 2.0 - MAX 0.02 1.0 0.2 0.015 0.03 22.5 0.5 14.5 0.35 3.5 6.0 2.5 TYPICAL 0.01 0.6 0.2 0.01 0.02 21 0.2 13.5 0.1 3.0 4.0 1.0 Bal. WELD METAL PROPERTIES (ALL WELD METAL) PROPERTY UNITS MINIMUM TYPICAL OTHERS Tensile strength N/mm 2 690 790 0.2% Proof stress N/mm 2 - 560 Elongation on 4d % 25 35 Reduction of Area (RA) % - 38 Impact energy -196 o C J - 45 WELDING AMPERAGE DCEP Ø (mm) 2.6 3.2 4.0 MIN 60 90 130 MAX 100 130 180 OTHER DATA Electrodes that have become damp should be re-dried at 180 o C for 1 hour. RELATED PRODUCTS Please contact our Technical Department for detail. WI-0304 DS93 NCM-622, Rev. 1, Date 01.02.2012

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