Nikko Steel Kawat Las Elektroda GA-24

Brosur & Katalog Produk / Brosur & Katalog Produk

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1. MANUFACTURERS OF A DIVERSE RANGE OF ADVANCED WELDING CONSUMABLES SECTION 3 GA-24 RUTILE IRON POWDER ELECTRODE FOR HIGH EFFICIENCY WELDING IN THE DOWNHAND (FLAT) AND HORIZONTAL-FILLET POSITIONS DATA SHEET NO. 5 SPECIFICATION AWS A5.1 BS EN ISO 2560-B CLASSIFICATION E7024 E4924 PRODUCT DESCRIPTION A rutile based flux with a high iron powder content that also contains the necessary alloying and deoxidising elements. The fluid slag has a short freezing range allowing excellent deposition rates to be achieved. The flux is extruded onto a mild steel core wire that ensures coating strength and stability. Metal recovery is some 180% with respect to core wire weight. WELDING FEATURES OF THE ELECTRODE The arc is stable on both AC and DC. Arc strike and re-strike are instant. Weld seams are smooth and evenly rippled. Slag detachability is excellent, often self- detaching. The high metal recovery ensures improved welding economics. Fillet welds are of a mitred to very slightly concave profile. APPLICATIONS AND MATERIALS TO BE WELDED Butt welds in the flat (downhand) position and fillet welds in the flat and horizontal positions with the following materials: Mild and medium carbon-manganese steels up to 15mm thick with a UTS of 500N/mm 2 max. Typical grades : BS 1449 plate and sheet, BS 4360 grades 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. WELD METAL ANALYSIS COMPOSITION % BY Wt. C Mn Si S P Cr Ni Mo V Fe MIN - - - - - - - - - MAX 0.15 1.25 0.9 0.035 0.035 0.2 0.3 0.3 0.08 TYPICAL 0.07 1.0 0.4 0.02 0.02 0.03 0.03 0.03 0.04 Bal. WELD METAL PROPERTIES (ALL WELD METAL) PROPERTY UNITS MINIMUM TYPICAL OTHERS Tensile strength N/mm 2 490 530 0.2% Proof stress N/mm 2 400 480 Elongation on 4d % 17 29 - Reduction of Area (RA) % - 70 Impact energy 0 o C J - 80 WELDING AMPERAGE AC or DC Ø (mm) 3.2 4.0 5.0 MIN 130 170 210 MAX 180 240 310 OTHER DATA Electrodes that have become damp should be re-dried at 150 o C for 1 hour. APPROVED BY BKI - Grade 2Y WI-0304 DS5 GA-24 Rev. 1, Date 02.03.2009

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