Nikko Steel Kawat Las Elektroda For High Tensile Low Alloy Steels RD-716G

Brosur & Katalog Produk / Brosur & Katalog Produk

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1. UNCONTROLLED MANUFACTURERS OF A DIVERSE RANGE OF ADVANCED WELDING CONSUMABLES SECTION 4 RD-716G LOW HYDROGEN ELECTRODE WITH GOOD TOUGHNESS AT -50 ºC DATA SHEET NO. 28 SPECIFICATION AWS A5.5 CLASSIFICATION E7016-G PRODUCT DESCRIPTION The design emphasis of the chemically basic flux is engineered to ensure the optimum weld metal properties demanded by the speci fication are fully met. The basic flux containing the appropriate alloying elements but minimal iron powder, is extruded onto a high purity ferritic cor e wire and bound with a blend of silicates that ensure both coating strength and a c oating resistant to subsequent moisture absorption . WELDING FEATURES OF THE ELECTRODE The chemical nature of the flux together with its c ontrolled coating factor allows the electrode to be used at relatively low amps. Th is factor together with the fairly fluid but quick freezing slag facilitate vertical u p 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 PRESSURE VESSEL STEELS PLATES All grades up to BS 1501-225 FORGINGS All grades up to BS 1503-224 PIPES LT50 quality of grade 410 in BS 3603:1977 Such steels and similar are used for the fabricatio n of LPG tankers and storage vessels. The 1% nickel max meets NACE MR0175 requirements fo r corrosion resistance in marine environments. C Mn Si S P Ni Cr Fe MIN * - 1.0 - - - 0.6 - MAX 0.12 1.75 0.5 0.025 0.025 1.1 0.5 TYPICAL 0.08 1.2 0.3 0.01 0.01 0.9 0.3 Bal. WELD METAL ANALYSIS COMPOSITION % BY Wt. * Undiluted weld metal shall have the minimum of at l east one of the element specified on AWS A5.5-2006 PROPERTY UNITS MINIMUM TYPICAL OTHERS Tensile strength N/mm 2 490 650 0.2% Proof stress N/mm 2 390 580 Elongation on 4d % 22 25 Reduction of Area (RA) % - 70 WELD METAL PROPERTIES (ALL WELD METAL) Impact energy -50 o C J 40 60 Ø (mm) 2.6 3.2 4.0 5.0 MIN 50 75 130 180 WELDING AMPERAGE AC or DC+ MAX 85 125 170 220 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. APPROVED BY LR – Grade 4Y H5 WI-0304 DS28 RD-716G Rev. 5, Date 01.11.2013

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