| Alloy Brand | Chemical Composition (%) | ||||||||
| GB | JIS | Cu | Fe | Pb | Sn | P | Al | Zn | Impurities |
| QSn6.5-0.1 | C5191 | Bal | 0.05 | 0.02 | 6.0-7.0 | 0.1-0.25 | 0.002 | 0.3 | 0.4 |
| QSn8.0-0.3 | C5210 | Bal | 0.1 | 0.05 | 7.0-9.0 | 0.03-0.35 | - | 0.2 | 0.85 |
| Brand | Temper | Elongation Test | Hardness (HV) | |
| Tensile Strength (N/mm2) | Elongation (%) | |||
| QSn6.5-0.1 | M | ≥315 | ≥40 | ≤120 |
| Y4 | 390-510 | ≥35 | 110-155 | |
| Y2 | 490-610 | ≥10 | 150-190 | |
| Y | 590-690 | ≥8 | 180-230 | |
| T | 635-720 | ≥5 | 200-240 | |
| TY | ≥690 | - | ≥210 | |
| QSn8.0-0.3 | M | ≥345 | ≥45 | ≤120 |
| Y4 | 390-510 | ≥40 | 100-160 | |
| Y2 | 490-610 | ≥30 | 150-205 | |
| Y | 590-705 | ≥12 | 180-235 | |
| T | ≥685 | ≥5 | ≥210 | |
| Wrought Copper-zinc and Copper-tin Binary Alloys - Compositions, Uses and Typical Properties | |||||||||||||
| Material Designation | Composition, %, Range or Max | Nearest Old BS Equivalent | Characteristics 0.2% and Uses | Typical Mechanical Properties | |||||||||
| Symbol | Number | Cu | P | Pb | Sn | Zn | Others | 0.2% Proof Strength (N/mm2) | Tensile Strength (N/mm2) | Elongation (%) | Hardness (HV) | ||
| CuSn4 | CW450K | Rem. | 0.01-0.4 | 3.5-4.5 | 0.2 | PB101 | Strength increases as tin content increases. Good corrosion and corrosion fatigue properties lead to uses such as springs, instrument components, wire cloth, condenser tube-plates and vessels, and electronic components. Controlled resistivity wire for power applications. | 140-850 | 320-950 | 60-1 | 75-230 | ||
| CuSn5 | CW451K | Rem. | 0.01-0.4 | 4.5-5.5 | 0.2 | PB102 | 140-850 | 320-950 | 60-1 | 75-230 | |||
| CuSn6 | CW452K | Rem. | 0.01-0.4 | 5.5-7.0 | 0.2 | PB103 | 140-950 | 340-1000 | 60-1 | 80-250 | |||
| CuSn8 | CW453K | Rem. | 0.01-0.4 | 7.5-8.5 | 0.2 | PB104 | 170-1000 | 390-1100 | 60-1 | 85-270 | |||
