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CAIRO, Jan 24 (Reuters) - Egypt will likely sell $4 billion in a triple-tranche eurobond issuance with lower than expected yields, bankers involved in the deal said, a potential sale twice the target set when it began a roadshow last week.

Bankers said Egypt expected to purchase $1.75 billion in five-year bonds at 6.125 percent, $1 billion in 10-year bonds at 7.50-7.625 percent and $1.25 billion in 30-year bonds at 8.375-8.50 percent.

There has not yet been an announcement on final prices, but those yields are lower than initial marketing levels of 6.375-6.625 percent, 7.625-7.875 percent, and 8.625-8.875 percent respectively.

"The yields are much better than expected. The expected yields for the five-year was at 6.5 and now it's at 6.125, so that's great news," one banker said.

The combined order books for the bonds were over $13.5 billion incorporating the start of sales on the U.S. market, bankers said, though Egypt is not expected to accept this amount.

"The issuance is successful because it offers relatively attractive yields compared to global returns on the dollar at a time when the macro risks related to the Egyptian economy are diminishing and the turnaround story is about to commence," said Cairo-based CI Capital economist Hany Farahat.

"I expect this successful issue to induce some follow-up issuances in the coming fiscal year, to capitalise on eurobond proceeds as a main source of FX inflows," he added.

The bonds will be listed on the Luxembourg Stock Exchange. The offering is being run by BNP Paribas, Citigroup, JP Morgan and Natixis.

Egypt had planned to begin its roadshow in November but postponed it due to market volatility.

The country of over 90 million has been seeking a variety of funding sources, from development loans to foreign grants and aid, to plug its financing needs as it struggles with an acute dollar shortage that has hampered its ability to import.

The central bank abandoned its currency peg of 8.8 pounds to the U.S. dollar in November and raised interest rates by 300 basis points in a move it hopes will unlock currency inflows and bring back foreign investors driven away after a 2011 uprising.

The currency flotation helped Egypt to clinch a $12 billion loan programme from the International Monetary Fund to support plans for sweeping economic reforms.

The IMF deal and flotation have helped propel the Egyptian stock market to multi-year highs.

(Reporting by Asma Alsharif and Eric Knecht in Cairo and Robert Hogg in London; Writing by Lin Noueihed and Eric Knecht; Editing by Tom Heneghan and Gareth Jones) ((lin.noueihed@thomsonreuters.com; +202 2 394 8039; Reuters Messaging: lin.noueihed.thomsonreuters.com@reuters.net))