Cor-A-Rosta wires for high integrity applications



for Stainless Steel Applications

50% increase in productivity comparing to GMAW pulse | Over 80% increase in productivity comparing to SMAW

by Mark Golding and Krzysztof Sadurski​

In today’s world of increased competitiveness and high pressure on manufacturers to reduce costs, using flux cored wires for your welding jobs can provide competitive edge. Main advantages of Cor-a-Rosta flux cored wires are:

Reduction of welding cost comparing to SMAW and GMAW - high deposition rate coupled with continuous process offer high productivity, FCAW process combines best features of MIG and MMA,

Fig 1. Comparison of welding costs and deposition rate in vertical up welding. Fillet weld, a4.5 (throat size), length= 10m.
Total cost of labour 20€/h, operating factor 35%.

• Short training time, cored wires are easy to use and offer the best operator appeal, arc column is clearly visible,
• Improved quality of welds, higher current density coming from the nature of cored wires eliminates typical disadvantages of GMAW and SMAW welding (lack of penetration, cold laps, slag inclusions),
• Reduced welding cost compared to GMAW, standard M21 or C shielding gases are used,
• Limited investments, Cor-a-Rosta wires work better than GMAW both on standard CV and LE pulse welding modes,
Very good weld appearance and regularity, optimal slag system helps to achieve best results.

Typical industrial practises refer to typical FCAW torch angles and welding parameters.

Fig. 2. Torch angles and travel direction, fillet weld in PB.
10mm plate, 12m/min WFS (210-220A), 27.5V, TS 30cm/min.

Fig. 3. Torch angles and travel direction, fillet weld in PF,
10mm plate, 7-9m/min WFS (160-180A); 25.5 – 26.5V; TS 12-16 cm/min

Cor-a-Rosta wires are available in the most common stainless steel grades and the increased productivity is the main factor explaining their successful application in general fabrication, production of food and brewery equipment, petrochemical and chemical industry, offshore oil and gas or civil architectural constructions.
Typical packaging systems are 5kg and 15kg vacuum sealed S200 and S300 coils, respectfully.

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