Nikko Steel Kawat Las Elektroda For High Tensile Low Alloy Steels RD-51

Brosur & Katalog Produk / Brosur & Katalog Produk

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1. MANUFACTURERS OF A DIVERSE RANGE OF ADVANCED WELDING CONSUMABLES SECTION 4 RD-51 LOW HYDROGEN ELECTRODE FOR WELDING COPPER CONTAINING FERRITIC WEATHER-PROOF STEELS DATA SHEET NO. 27 SPECIFICATION AWS A5.5 BS EN ISO 2560-B JIS Z 3214 CLASSIFICATION E8018-W2 E5518-NCC1 DA5816W PRODUCT DESCRIPTION The design emphasis of the chemically basic flux is engineered to ensure the optimum weld metal properties demanded by the specification are fully met. The basic flux containing the appropriate alloying elements but minimal iron powder, is extruded onto a high purity ferritic core wire and bound with a blend of silicates that ensure both coating strength and a coating resistant to subsequent moisture absorption . WELDING FEATURES OF THE ELECTRODE T he chemical nature of the flux together with its controlled coating factor allows the electrode to be used at relatively low amps. This factor together with the fairly fluid but quick freezing slag facilitate vertical up welding including controlled penetration root runs. Overall the arc is very stable, slag detachability is good, fillet welds are slightly convex and metal recovery is some 98% with respect to weight of the core wire. APPLICATIONS AND MATERIALS TO BE WELDED Used mainly for ‘weathering’ steels containing a similar controlled copper addition, eg: BS4360 Grades WR50A to WR50C ASTM A588 Grades A, B, C, K. A421 types 1 and 2 DIN 1.8960, 1.8961, 1.8963. Proprietary Corten A-B1 (Corus and US steel). WELD METAL ANALYSIS COMPOSITION % BY Wt. C Mn Si S P Cr Ni Cu Fe MIN - 0.5 0.35 - - 0.45 0.4 0.30 MAX 0.12 1.3 0.8 0.03 0.03 0.7 0.8 0.75 TYPICAL 0.06 1.0 0.6 0.013 0.011 0.5 0.6 0.5 Bal. WELD METAL PROPERTIES (ALL WELD METAL) PROPERTY UNITS MINIMUM TYPICAL OTHERS Tensile strength N/mm 2 550 620 0.2% Proof stress N/mm 2 460 536 Elongation on 4d % 19 27 Reduction of Area (RA) % - 75 Impact energy -20 o C J 27 80 WELDING AMPERAGE AC or DC+ Ø (mm) 2.6 3.2 4.0 5.0 MIN 65 90 130 180 MAX 110 150 190 240 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 DS27 RD-51 Rev. 1, Date 01.10.2010

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