Nikko Steel Kawat Las Elektroda For Nickel Based Alloys NCM-12

Brosur & Katalog Produk / Brosur & Katalog Produk

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1. MANUFACTURERS OF A DIVERSE RANGE OF ADVANCED WELDING CONSUMABLES SECTION 7 NCM-12 A CHEMICALLY BASIC FLUX COATED MMA ELECTRODE DEPOSITING A NICKEL BASED ALLOY HIGH IN BOTH CHROMIUM AND MOLYDENIUM DATA SHEET NO. 95 SPECIFICATION AWS A5.11 BS EN ISO 14172 CLASSIFICATION ENiCrMo-12 E Ni 6627 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 both austenitic stainless steels and duplex stainless steels to each other or to themselves or to NiCrMo alloys as the composition is balanced to provide excellent corrosi on resistance below the creep range of stainless steels, even highly alloyed types. Material specification covered includes ASTM A240, A182, A249, A276, A312, A358, A403 and A479, and particularly Grade UNS No. S31254. WELD METAL ANALYSIS COMPOSITION % BY Wt. C Mn Si P S Cr Ni Mo Nb + Ta Cu Fe MIN. - - - - - 20.5 8.8 1.0 - - MAX. 0.03 2.2 0.7 0.03 0.02 22.5 10 2.8 0.5 5.0 TYPICAL 0.02 1.0 0.3 0.02 0.01 21 Bal. 9.0 2.0 0.2 2.0 WELD METAL PROPERTIES (ALL WELD METAL) PROPERTY UNITS MINIMUM TYPICAL OTHERS Tensile strength N/mm 2 650 710 0.2% Proof stress N/mm 2 - 600 Elongation on 4d % 35 42 Reduction of Area (RA) % - 38 Impact energy -40 o C J - 85 WELDING AMPERAGE AC or DC + Ø (mm) 2.6 3.2 4.0 5.0 MIN 50 80 130 170 MAX 80 120 180 200 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 DS95 NCM-12, Rev. 1, Date 01.02.2010

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