Bronze prototype castings are made for specific applications such as:
– Nautical parts such as rudders, azimuth pod systems, water jets etc.
– Parts for food industry machines such as mixer arms, screw feeders, baskets etc.
– Parts for the construction of explosion-proof/spark-proof machines such as impellers, shimmers, housings, casings etc.
Some of the most commonly used alloys used for these requirements are listed below.
| COMPLETE BRONZE TABLE – (in accordance with the new UNI Standards and correspondence with the former UNI Standards) | |||||||||||||
| Name | TYPICAL ANALYSIS | MECHANICAL PROPERTIES | |||||||||||
| NEW UNI and commercial | OLD UNI and commercial | Cu% | Al% | Sn% | Zn% | Pb% | Fe% | Mn% | Ni% | Rm Kg/mm2 | Rp0,2 Kg/mm2 | A% | HB |
| GCuSn10 UNI 7013-72 (1) | B10 UNI 1701 | other | 0,01 | 9-11 | 0,5 | 1 | 0,2 | 0,2 | 0,7 | 26-30 | 14-18 | 13-18 | 75-85 |
| GCuSn12 UNI 7013-72 (2) | B14 UNI 1701 | other | 0,01 | 11-13 | 0,5 | 1 | 0,2 | 0,2 | 0,7 | 27-32 | 15-17 | 6-10 | 100-120 |
| GCuSn10Pb10 UNI 7013-72 (3) | BPb12 UNI 1701 | other | 0,01 | 9-11 | 1 | 9-11 | 0,25 | 0,2 | 1,5 | 20-24 | 9-13 | 8-14 | 65-80 |
| G Cu Sn8 Pb15 UNI 7013-72 (4) | BPb15 UNI 1701 | other | 0,01 | 7-9 | 1 | 13-17 | 0,25 | 0,2 | 2 | 17-23 | 10-13 | 6-11 | 65-75 |
| G Cu Sn5 Pb20 UNI 7013-72 (5) | BSPb20 UNI1701 | other | 0,01 | 4-6 | 1,5 | 19-23 | 0,25 | 0,2 | 2 | 15-21 | 7-11 | 5-9 | 50-65 |
| G Cu Sn10 Zn2 UNI 7013-72 (6) | – | other | 0,01 | 8,5-11 | t3 | 1,5 | 0,2 | 1 | 0,2 | 28-31 | 14-17 | 7-11 | 85-100 |
| G Cu Sn7 Zn4 Pb UNI 7013-72 (7) | BZN7 UNI 1701 | other | 0,01 | 6-8 | 3-5 | 5-7 | 0,25 | 0,1 | 2 | 26-30 | 13-15 | 012-21 | 70-85 |
| G Cu Sn5 Zn5 Pb5 UNI 7013-72 (8) | 85.5.5.5 Standard bronze | other | 0,01 | 4-6 | 4-6 | 4-6 | 0,3 | 0,1 | 0-2 | 25-30 | 8-12 | 14-21 | 65-80 |