ASTM · ASTM B569

ASTM B569 Thin Brass Strips for Heat Exchanger Tubes

Technical Description and Scope of Application

This specification establishes strict engineering standards for the production of thin, narrow-width strips made from UNS C23000, C26000, and C26130 copper alloys. Products from EV Group China, manufactured according to the ASTM B569 standard, are optimized for the high-tech production of heat exchanger tubes used in internal combustion engine cooling systems and industrial closed-loop heat exchange circuits.

The manufacturing process of the workpiece (cast bar, slab, or plate) guarantees a high degree of alloy purity, ensuring stability during hot and cold deformation, as well as subsequent thermal annealing. The result is the formation of a homogeneous metallurgical structure, which is essential for the reliable operation of products under cyclic loads.

EV Group China supplies rolled products in the following tempers:

• H01 (1/4 hard);
• H02 (1/2 hard);
• O81 (annealed before tempering, 1/4 hard);
• O82 (annealed before tempering, 1/2 hard).

Each batch of products undergoes multi-stage quality control, including precision geometric measurements, comprehensive mechanical testing, grain size evaluation, and spectral analysis of chemical composition in accordance with ASTM protocols.