1. MANUFACTURERS OF A DIVERSE RANGE OF ADVANCED WELDING CONSUMABLES SECTION 6 NSB-308H FOR WELDING AUSTENITIC STAINLESSS STEELS CONTAINING A NOMINAL 19Cr and 10Ni DATA SHEET NO. 63 SPECIFICATION AWS A5.4 BS EN 1600 JIS Z 3221 CLASSIFICATION E308H-16 E 19 9 R D308-16 PRODUCT DESCRIPTION A metallurgically advanced rutile based flux formulated with balanced additions of chemically basic, amphoteric and acid minerals, together with small alloy additions to compensate for arc losses. The flux is concentrically extruded onto a fully alloyed core wire and bound by a blend of silicates that assures both coating strength and resistance to subsequent moisture absorption. WELDING FEATURES OF THE ELECTRODE This unique flux formulation ensures excellent arc stability, ease of initial arc strike and re-strike minimal spatter on AC and virtually none on DC+. The resultant weld seams are smooth, evenly rippled and free from undercut while slag detachability is excellent. Metal recovery is some 103% with respect to core wire weight. APPLICATIONS AND MATERIALS TO BE WELDED Applications for the electrode are to be found in the Chemical, Petro-Chemical and Cryogenic Processing and Storage Industries as well as the Food, Brewery and Pharmaceutical Industries using the following materials: ASTM 304 - 304H UNS 53 30409 Cast CF10 - CF8. Particularly valuable in Petro-Chemical plant and Power Generating plant operating in the 400 - 800 º C temperature range as the higher carbon imparts improved creep resistance. WELD METAL ANALYSIS COMPOSITION % BY Wt. C Mn Si S P Cr Ni Mo Cu Fe FN MIN 0.04 0.5 - - - 18.0 9.0 - - 2.0 MAX 0.08 2.5 1.0 0.03 0.04 21.0 11.0 0.75 0.75 8.0 TYPICAL 0.06 1.3 0.6 0.01 0.03 18.8 10.0 0.15 0.35 Bal. 4.0 ALL WELD METAL PROPERTIES PROPERTY UNITS MINIMUM TYPICAL OTHERS Tensile strength N/mm 2 550 560 0.2% Proof stress N/mm 2 - 450 Elongation on 4d % 35 45 Reduction of Area (RA) % - 37 Impact energy 20 o C J - 80 HV 190 - 210 WELDING AMPERAGE AC or DC+ Ø (mm) 2.0 2.6 3.2 4.0 5.0 MIN 35 65 80 120 160 MAX 80 100 125 170 210 OTHER DATA Electrodes that have become damp should be re-dried at 150 o C for 1 hour. RELATED PRODUCTS Please contact our Technical Department for detail. WI-0304 DS63 NSB-308H Rev. 0, Date 01.09.2008