Technical aspects and application of rods according to the ASTM B139 standard
This specification establishes strict requirements for the production of phosphor bronze rods, bars, and shapes, covering UNS C51000, C52100, C52400, C53400, and C54400 alloy grades. The manufacturing process at EV Group China is based on the use of high-quality cast billets, whose chemical composition and purity guarantee a uniform fine-grained structure after a cycle of hot or cold deformation followed by heat treatment.
To ensure specified physical and mechanical properties, the metal products are supplied in various tempers: from soft to hard and spring temper, which allows for selecting the optimal solution for high-load assemblies and precision components.