CREATE TABLE table_name_51 (remelting_at__°c_ VARCHAR(255), sn_sb___percentage_ VARCHAR(255))
What is the remelting temperature for the alloy that has a Sn/Sb ratio of 9.5/15?
    
SQL: SELECT remelting_at__°c_ FROM table_name_51 WHERE sn_sb___percentage_ = "9.5/15"