ZCuAL9Fe3 C83600 C83800 C93700 Large Diameter Tin Bronze Pipe Customized Bronze Tube

Tin Bronze Tube (C5191/C5210/C5102 and equivalent grades)

Manufactured from high-purity cathodic copper and selected phosphorus-tin master alloys through horizontal continuous casting → multi-pass cold rolling/drawing → intermediate annealing → precision drawing → final annealing → acid pickling & passivation → straightening & fixed-length cutting → 100% non-destructive testing in a closed-loop process.

All critical processes are conducted in Class 100,000 clean rooms. Equipped with Spectro (Germany) direct-reading spectrometer, Mitutoyo (Japan) roughness & roundness testers, Olympus metallurgical microscope, and FEI automatic eddy current + ultrasonic combined inspection system, ensuring chemical composition deviation ≤0.02%, wall thickness tolerance within ±0.015 mm, and average grain size ≥ ASTM E112 Grade 8. The microstructure is fully dense with no porosity, inclusions, or cracks.

Each batch is delivered with complete traceable third-party test reports covering chemical composition, mechanical properties, metallographic structure, NDT results, dimensional accuracy, and surface quality. Third-party re-inspection by SGS, Bureau Veritas, TÜV, etc. is supported.

Supply forms can be customized according to customer drawings or international standards (ASTM B103/B139/B159, JIS H3270, EN 12166, etc.), available in bright annealed soft (O60/O50), half-hard (H02), and full-hard (H04/H08) tempers.

We have been providing stable volume supply for high-end applications including precision connectors, automotive relays, RF coaxial connectors, waveguide components, and heat-exchanger tubing. Single-batch supply capability exceeds 50 tons, delivery schedules can be controlled to the exact days, and quality rejection rate has remained below 30 ppm for five consecutive years.