Nikko Steel Kawat Las Elektroda C-11

Brosur & Katalog Produk / Brosur & Katalog Produk

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1. MANUFACTURERS OF A DIVERSE RANGE OF ADVANCED WELDING CONSUMABLES SECTION 3 C-11 CELLULOSE COATED ELECTRODE FOR VERTICAL DOWN WELDS IN LARGE DIAMETER CROSS- COUNTRY PIPELINES DATA SHEET NO. 2 SPECIFICATION AWS A5.1 BS EN ISO 2560-B JIS Z 3211 CLASSIFICATION E6011 E4311 D4311 PRODUCT DESCRIPTION The electrode contains some 35% of organic materials which in the arc transform into a shielding gas and contributes to a concentrated deep penetrating arc with a fast-freezing slag. The flux is extruded onto a mild steel core wire using only potassium silicates which ensures coating strength. WELDING FEATURES OF THE ELECTRODE The electrode is suited for use on AC or DC+ and is ideal for full penetration root runs using a controlled root gap and root face and a stringer bead technique. Slight grinding of the stringer bead with wire brushes prevents lateral inclusions followed by a hot pass that particularly on high stressed and or high carbon steels promotes hydrogen diffusion and thus reduces the probability of hydrogen induced cracking. APPLICATIONS AND MATERIALS TO BE WELDED Cross country pipelines - on site storage tanks in following materials - mainly root pass: Mild Steels: St 360 C-St 510 C, St 34.2, St 37.2, St 46.2, St 37.3, St 46.3, St 52.3 . Pressure vessel steels: H1, H11, St 35 KKW, St 41 KKW. High strength steels: St 52, St 35.4, St 45.4, St 52.4, St E210.7-St E415.7, St E290.7TM-St E415.7TM, St 35.8, St 45.8. API 5LX: X42, X46, X52, X56, X60 . May also be used in root runs for higher tensile steels. WELD METAL ANALYSIS COMPOSITION % BY Wt. C Mn Si S P Cr Ni Mo V Fe MIN - - - - - - - - - MAX 0.2 1.2 1.0 - - 0.2 0.3 0.3 0.08 TYPICAL 0.1 0.5 0.2 0.03 0.02 0.04 0.04 0.01 0.003 Bal. WELD METAL PROPERTIES (ALL WELD METAL) PROPERTY UNITS MINIMUM TYPICAL OTHERS Tensile strength N/mm 2 430 500 0.2% Proof stress N/mm 2 330 430 Elongation on 4d % 22 30 Reduction of Area (RA) % - 70 Impact energy –30 o C J 27 40 WELDING AMPERAGE AC or DC+ Ø (mm) 2.6 3.2 4.0 MIN 70 90 130 MAX 90 130 180 OTHER DATA Electrodes that have become damp should be re-dried at 60 o C for 30 mins. APPROVED BY LR and ABS - Grade 3 WI-0304 DS2 C-11, Rev. 0, Date 01.09.2008

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