1. UNCONTROLLED MANUFACTURERS OF A DIVERSE RANGE OF ADVANCED WELDING CONSUMABLES SECTION 4 RD-360U BASIC LOW HYDROGEN ELECTRODE FOR VERTICAL UP ROOT RUNS ACCESSIBLE FROM ONE SIDE ONLY DATA SHEET NO. 20 SPECIFICATION AWS A5.1 BS EN ISO 2560-B JIS Z 3212 CLASSIFICATION E7016 E4916 D5016 PRODUCT DESCRIPTION The design emphasis of this chemically basic flux i s engineered towards allowing controlled penetration root runs in the vertical up position when joint access is from one side only. State of the art deoxidation and micro alloying tec hniques ensure the mechanical properties demanded by the specification are fully met and the silicates used to bind the flux ensure very low hydrogen levels and e xcellent coating strength. WELDING FEATURES OF THE ELECTRODE The chemical nature of the flux allows very low amp erages to be used on AC and DC+ and even DC- for controlled penetration root ru ns. The arc is smooth and stable and the black viscous slag readily detachabl e, the resultant weld seams are bright and smooth. The electrode is designed solely for one sided vertical up welding and overhead welding and the very design fe atures that make this possible will limit its use on other joint configur ation. APPLICATIONS AND MATERIALS TO BE WELDED Medium and high tensile carbon-manganese steels wit h UTS of up to 510N/mm 2 max. Typical grades : BS 1449 plate and sheet BS 4360 gr ades 43A and 43C Lloyds A & D ship steel BS 4360 grade 50B, Lloyds grades AH and DH BS 3059 and BS 3601 grade 320–410 API 5L A-B and X42, BS 4360-50B- 50C-50D, BS 1501-151 430-490, BS 3602-410-460. Such steels are used in ship construction, bridge b uilding and pressure vessel work as well as general construction work. C Mn Si S P Cr Ni Mo V Fe MIN - - - - - - - - - MAX 0.15 1.6 0.75 0.035 0.035 0.2 0.3 0.3 0.08 WELD METAL ANALYSIS COMPOSITION % BY Wt. TYPICAL 0.1 1.0 0.5 0.01 0.02 0.15 0.05 0.01 0.01 B al. PROPERTY UNITS MINIMUM TYPICAL OTHERS Tensile strength N/mm 2 490 650 0.2% Proof stress N/mm 2 400 550 Elongation on 4d % 22 26 Reduction of Area (RA) % - 70 WELD METAL PROPERTIES (ALL WELD METAL) Impact energy -30 o C J 27 60 Ø (mm) 2.6 3.2 4.0 5.0 MIN 50 75 130 170 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 3Y H5 WI-0304 DS20 RD-360U Rev. 4, Date 01.11.2013