Mild & Medium Tensile Steels

Mild & Medium Tensile Steels

Cellulose Coated Electrode For Vertical Down Welds In High Strength Large Diameter Cross-Country Pipelines

C-10Mo


CLASSIFICATION

AWS A5.5 E7010-A1 | EN ISO 2560-A E 38 Z Mo C

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 sodium silicates which ensures coating strength.

WELDING FEATURES OF THE ELECTRODE

The electrode is suited for use on DC+ and is ideal for both full penetration root runs using a controlled root gap and root face and a stringer bead technique and the capping pass. 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 - storage tanks in following materials: 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 5.4, St 52.4, St E210.7-St E415.7, St E290.7TM-S t E415.7TM, St 35.8, St 45.8. API 5L : X52 - X60. Suitable for root pass - hot pass - filler and cover passes

WELDING AMPERAGE AC and DC


OTHER DATA

Electrodes that have become damp should be re-dried at 90oC for 30 minutes