Nikko Steel Kawat Las Elektroda For High Tensile Low Alloy Steels RD-110M

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1. MANUFACTURERS OF A DIVERSE RANGE OF ADVANCED WELDING CONSUMABLES SECTION 4 RD-110M LOW HYDROGEN - IRON POWDER ELECTRODE FOR WELDING STEELS WITH A MINIMUM UTS OF 760 N/mm 2 DATA SHEET NO. 43 SPECIFICATION AWS A5.5 BS EN ISO 18275B CLASSIFICATION E11018M E7618-N4CM2 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 with a controlled balanced addition of iron power, is extruded onto a high purity ferritic core wire with a blend of silicates that ensures both coating strength and a coating resistant to subsequent moisture absorption . WELDING FEATURES OF THE ELECTRODE The chemical nature of the flux together with a significant proportion of iron powder ensures maximum deposition efficiency without detracting from its ability to be used in all positions except vertical down. Overall the arc is very stable, slag detachability is good and metal recovery is some 115% with respect to the core wire. APPLICATIONS AND MATERIALS TO BE WELDED D esigned for welding quenched and tempered low alloy steels s uch as HV80 and HV100. Such steels are not normally subjected to PWHT. However, hydrogen release heat treatment is often applied at 250 ° C for 1 hour per 15cms of plate thickness and this in combination of a preheat of 150 C ̊ min ensures the integrity of the HAZ areas. WELD METAL ANALYSIS COMPOSITION % BY Wt. C Mn Si S P Cr Ni Mo V Fe MIN - 1.3 - - - - 1.25 0.25 - MAX 0.1 1.8 0.6 0.03 0.03 0.4 2.5 0.5 0.05 TYPICAL 0.06 1.6 0.3 0.02 0.01 0.3 1.60 0.4 0.01 Bal. WELD METAL PROPERTIES (ALL WELD METAL) PROPERTY UNITS MINIMUM TYPICAL OTHERS Tensile strength N/mm 2 760 840 0.2% Proof stress N/mm 2 680 ~ 760 740 Elongation on 4d % 20 22 Reduction of Area (RA) % - 60 Impact energy -50 o C J 27 45 WELDING AMPERAGE AC or DC+ Ø (mm) 2.6 3.2 4.0 5.0 MIN 50 75 130 180 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. WI-0304 DS43 RD-110M Rev. 2, Date 01.04.2013

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