We are able to deliver much tighter tolerance with cionstants deviation range per tube, per lot and between different shipments.
1. Alloy and application: (1) Material: bronze. (2) Standard (JIS, ASTM, EN): a. C5191, C51900, CuSn6. b. C5212, C52100, CuSn8. (3) Nominal chemical composition % (C8 > 99.85): a. Cu: 94, Sn: 6, P: 0.2. b. Cu: 91.5, Sn: 8, P: 0.2. (4) Typical application: a. Bourdon springs for low pressure ranges,test probes. b. Bourdon springs for medium pressure ranges, bellows, electronic probes. (5) Density: 8.84, 8.80. 2. Tube in coils: (1) Outside diameter: 0.15-2.0mm: +/-0.005mm(standard), 2.01-3.5mm: +/-0.05mm(standard). (2) Wall thickness: 0.03-0.3mm +/-0.005mm. (3) Coil ID: 450-650mm. Special ceae can be changed after discussion. (4) Coil weight: 5-20kg. Special ceae can be changed after discussion.