C17300

The C17300 alloy, also known as CuBe2Pb (Berylco 33/25 or B33/25), is a lead-bearing variant of C17200 (B25). The small lead addition (0.6% maximum) significantly enhances machinability by promoting chip breakage and reducing tool wear. The machinability rating of C17300 (CuBe2Pb) reaches 60%, compared to 20% for C17200 (CuBe2).

The C17300 alloy (B33/25) achieves exceptional mechanical strength levels comparable to C17200 after age hardening. Supplied in rod form, it is primarily intended for machined parts and screw-machining operations. Typically hardened after machining, B33/25 is distinguished by its high fatigue strength, excellent stress relaxation resistance, and a unique combination of mechanical strength and electrical conductivity. It can be locally annealed to allow crimping after hardening and is easily electroplated.

C17300 (B33/25) is a free-machining alloy designed for precision turning operations. As with C17200 (B25), its unique combination of properties — particularly in terms of conductivity and mechanical strength — makes it an essential material across a wide range of applications.

C17300 (B33/25) is available in rod form only, in a range of diameters (from 1 to 28 mm). It can be supplied in coil form.

We maintain a stock of rods in various diameters at our facility in Couëron, France, enabling us to offer both competitive pricing and fast delivery lead times.

Our rods are delivered in quality wooden crates. The standard length for C17300 (B33/25) alloy rods is 3 metres.