!

| Technical Data Brass Alloy # 342 |  |  |  |
| --- | --- | --- | --- |
| Parameters | Values |  |  |
| Physical Properties Alloys Composition Grain Refiner | (%) | 5.00% Tin 15.00% Zn 80.00% Cu Silicon |  |
|  | Unit | Brass |  |
| Density Color ASTM Grain Size | (gm/cc) (Y1) ASTM | 8.62 Std. Yellow 8.5 |  |
| Temperatures | Unit | Brass |  |
| Solidus Liquidus Casting Temperature Graining Temp for re-melting | ( $ ^{\circ} C $ ) ( $ ^{\circ} C $ ) ( $ ^{\circ} C $ ) ( $ ^{\circ} C $ ) | 955 915 104 8 C - 105 5 C |  |
| Mechanical Properties | Unit | Brass |  |
| Tensile Strength 0.2% offset Yield Strength Elongation (annealed) As cast hardness Hardness after 60% reduction | N/mm^{2} $ N/mm^{2} $ (%) (Hv) (Hv) | 422 320 62 65 80 |  |
| Hardness after annealing Hardness after heat-treating | (Hv) (Hv) | 327 5 |  |
| Microstructure | Cold worked (60%) and annealed (Mag: 100X) |  |  |
| Age-Hardening Profile (20 min) Hardness (Hv: 0.3) Temperature (C) |  |  |  |
| Recommended Application: |  |  |  |
| SUITABLE FOR CASTING & FABRICATION OF BRASS JEWELRY. POOR TARNISH RESISTANCE, GOOD HARDNESS & RE-USABILITY. |  |  |  |

***POOR TARNISH RESISTANCE, GOOD HARDNESS & RE-USABILITY .***

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| Temperature (℃) | Brass |
| --- | --- |
| 200 | 40 |
| 255 | 43 |
| 310 | 46 |
| 365 | 49 |
| 420 | 52 |
| 475 | 55 |
| 530 | 58 |
| 585 | 61 |
| 640 | 64 |
| 695 | 67 |

## Temperature ( o C ) Brass

$$
({}^{\circ}\mathbf{c})
$$