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High Precision Bronze
Overview:
High-precision phosphor bronze application scope: wear-resistant components and elastic components, connectors, high-tech industry connectors, electronic and electrical springs, switches, electronic product slots, buttons, electrical connectors, lead frames, vibrating sheets and terminals, etc.
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High Precision Bronze
Product Status & Mechanical Properties
Products Temper Grade & properties
| Alloy NO. | Bronze (Japanese Standard) | Bronze (GB) | Bronze (high elasticity) | ||||||||
| C5111 | C5102 | C5191 | C5210 | QSn6.5-0.1 | QSn6.5-0.4 | B8 | B10 | ||||
| Composition% | Cu:margin Sn:3.5-4.5 P:0.03-0.35 | Cu:margin Sn:4.5-5.5 P:0.03-0.35 | Cu:margin Sn:5.5-7.0 P:0.03-0.35 | Cu:margin Sn:7.0-9.0 P:0.03-0.35 | Cu:margin Sn:6.0-7.0 P:0.10-0.25 | Cu:margin Sn:6.0-7.0 P:0.26-0.40 | Cu:余量 Sn:7.5-9.0 P:0.13-0.17 | Cu:余量 Sn:9.5-11.0 P:0.13-0.17 | |||
| Tensile strength(N/mm²) | O | ≥295 | ≥305 | ≥315 | ≥345 | M | ≥290 | M | ≥295 | 460-540 | 460-560 |
| 1/4H | 345-440 | 375-470 | 390-510 | 390-510 | Y4 | 390-510 | — | — | 470-610 | 510-630 | |
| 1/2H | 410-510 | 470-570 | 490-610 | 490-610 | Y2 | 440-570 | — | — | 585-710 | 630-745 | |
| H | 490-590 | 570-665 | 590-685 | 590-705 | Y | 540-690 | Y | 540-690 | 635-735 | 745-840 | |
| EH | ≥570 | ≥620 | ≥635 | ≥685 | T | >640 | T | ≥665 | ≥725 | 805-900 | |
| Elongation(%) | O | ≥38 | ≥40 | ≥42 | ≥45 | M | ≥40 | M | ≥40 | ≥40 | ≥40 |
| 1/4H | ≥25 | ≥28 | ≥35 | ≥40 | Y4 | ≥35 | ≥27 | ≥32 | |||
| 1/2H | ≥12 | ≥15 | ≥20 | ≥30 | Y2 | ≥10 | ≥20 | ≥13 | |||
| H | ≥7 | ≥7 | ≥8 | ≥12 | Y | ≥8 | Y | ≥8 | ≥11 | ≥7 | |
| EH | ≥3 | ≥4 | ≥5 | ≥5 | T | ≥5 | T | ≥2 | ≥9 | ≥4 | |
| Vickers hardness(HV) | O | — | — | — | — | M | ≤100 | M | — | 125-150 | 125-155 |
| 1/4H | 80-150 | 90-160 | 100-160 | 100-160 | Y4 | 100-160 | — | — | 170-190 | 190-210 | |
| 1/2H | 120-180 | 130-190 | 150-205 | 150-205 | Y2 | 150-205 | — | — | 190-210 | 200-230 | |
| H | 150-200 | 170-220 | 180-230 | 180-235 | Y | 180-230 | Y | — | 210-230 | 220-260 | |
| EH | ≥170 | ≥190 | ≥200 | ≥210 | T | ≥200 | T | — | 230-250 | 250-290 | |
High-precision phosphor bronze application scope: wear-resistant components and elastic components, connectors, high-tech industry connectors, electronic and electrical springs, switches, electronic product slots, buttons, electrical connectors, lead frames, vibrating sheets and terminals, etc.
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