DUBAI - Pakistan has tightened the guidance for a tap of its existing three-tranche U.S. dollar-denominated bonds sold in March, a document showed on Tuesday, as the reopening of the notes received more than $2.4 billion in orders.

Pakistan is reopening for subscription a March issuance that was its first international bond sale since late 2017 and raised $2.5 billion. 

Guidance was tightened to around 5.875% for a tranche due in 2026, 7.125%-7.25% for bonds maturing in 2031 and around 8.5%-8.625% for paper due in 2051, the document from one of the banks on the deal showed.

The tranches were tightened from initial price guidance of 6%-6.125% for the 2026 bonds, around 7.375% for the 2031 notes and around 8.75% for the 2051 paper.

Credit Suisse , Deutsche Bank , Emirates NBD Capital , JPMorgan and Standard Chartered are arranging the deal, which is expected to launch later on Tuesday.

(Reporting by Yousef Saba; Editing by Alex Richardson) ((Yousef.Saba@thomsonreuters.com; +971562166204; https://twitter.com/YousefSaba))