Apple Inc. is expected to sell about $5 billion in bonds on Monday, tapping the market days after it reported a sharp rise in quarterly profit and brisk sales of its new iPhones. The final deal size hasn’t been set, and the bond sale should be completed later Monday. Apple AAPL, +1.25% is selling bonds that mature in five to 30 years, with a 10-year bond expected to yield about 0.95 percentage points more than Treasurys. The deal would be the tech giant’s smallest in the U.S. over the past two years. In April 2013, it sold $17 billion in the U.S., which at the time was the largest corporate bond sale on record. In April 2014, it sold $12 billion. The deal comes at a time when investors say demand is high for bonds from companies with high credit ratings. Moody’s Investors Service rates Apple Aa1, the second highest available. An expanded version of this report appears at WSJ.com.