SIF TIPS


WHAT IS CORED WIRE?


A cored wire is formed by filling a ‘U’ shaped metal strip with flux and/or metal powder, and drawing it into a filled tube. In simple terms, therefore, this process produces an ‘inside out’ welding rod with the flux at the centre of the arc.


SIFCORED WIRES provide the fabricator with a selection of wires to meet a wide range of applications at welding speeds up to three times faster than manual metal arc electrodes. SifCored wires are available for general purpose, high productivity welding, critical structures and pressure vessels, where good mechanical properties plus notch toughness are required.


High deposition rates. High quality weld metal properties. Increased penetration compared to solid wire. Lower incidences of rejects, resulting in lower total fabrication costs. Positional welding capabilities.


Flux CoredWires Flux cored wire is divided into two types, Rutile (R) and Basic (B) each producing a stable arc, easy slag removal and good appearance plus a high recovery of approximately 90%. Flux cored wires can be used with argon rich shielding gases with a CO2


content of 15-25% and are recommended where high quality is required.


Features of Flux Cored Wires All-position capability. Good slag removal characteristics. Low hydrogen levels. Ideal for Use with Ar/20%CO2


.


Able to deal with heavy rust and scale. Produce a consistent level of mechanical properties.


Applications for Flux Cored Wires


General fabrication of mild steel. General fabrication of medium steel under conditions of high restraint. All-positional welding. Heavy deposition in down hand butt and flat or HV fillet joints. Positional welding of structural work for service down to -60°C. Welding of stainless steels.


SifCored flux cored wires are available as standard in E71T-1, E81T1-Ni1, E308E308LT1-1/4, E309LT1-1/-4 and E316LT1-1/4.


Applications for Metal Cored Wires General fabrication of mild steel. General fabrication of medium tensile steel. Welding of high tensile as well as quench and tempered steels. Fabrication of mild and medium tensile steels with provision for weathering qualities when welding CORTEN A & B steels. Structural steelwork and offshore structures for service down to -50°C.


SifCored metal cored wires are available as standard in E70C-6M and E110C-G.


A wide range of other grades are available on request.


For further details, contact Weldability Sif on tel: +44 (0)845 130 7757 or email: training@weldability-sif.com


30 ...this process


produces an ‘inside out’ welding rod


with the flux at the centre of the arc.


Metal Cored Wires Metal cored wires offer exceptionally fast welding speeds and deposition efficiency. Welding is particularly smooth and almost spatter-free with a minimum of slag, and with fume levels comparable to those of solid wire MAG welding. Metal cored wires are available for high speed general purpose, low temperature and high strength requirements.


Features of Metal Cored Wires High metal recovery (up to 95%). No inter-run de-slagging. Good weld appearance. Tolerant to variations in welding current. Caters for majority of downhand applications on one current setting.


Technical advice in the original SifTips style was started in 1932. ‘Sifbronzing’ is an almost universally recognised way of describing the low temperature bronze welding of sheet steel, cast iron and other metals. This explains why Sifbronze, the company which first developed and promoted the technique, is generally considered to be a supplier of high quality welding rods, wires, fluxes and equipment. ‘Will the Welder’ was a


Siftips magazine that was produced in the early 1930s. The aim was to provide users with ideas and tips on how to get the most out of their welding equipment. In 2007, Weldability-Sif acquired Sifbronze, the welding consumables division of the Suffolk Iron Foundry, known internationally as Sif. Sif is renowned for its UK manufacturing heritage and for its complete range of quality welding consumables for MIG/GMAW, TIG/GTAW, Arc/SMAW, Oxy/Fuel Welding and Brazing which have been used globally for almost a century.


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