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About This Item
1.1 This specification establishes the requirements for round, square and flat phosphor bronze wire of UNS Alloy Nos. C51000, C52100 and C52400 for general and spring applications.
1.1.1 Rectangular and square wire of the three alloys are generally available in sizes up to a maximum of 5 mm thick and 32 mm wide.
1.1.2 Round wire from Copper Alloy UNS No. C51000 is generally available in sizes up to 13 mm in diameter.
1.1.3 This specification is the SI companion to Specification B159.
Note 1-It is to be understood that this specification is general. Since the product is used for many applications where the requirements of the operations used are too particular to be specified by any of the ordinary mechanical tests, it is frequently advisable to submit samples or drawings to the manufacturer and secure an adjustment of temper to suit the actual application for which the product is intended.
Note 2- Product in rod, bar and shape form is produced to Specification B139M.