Main properties of brass
1. Brass raw material
| GB/T5231-2001 designation |
Nearest equivalences | Specific gravity |
HB hardness | Tensile strength Rp0,2 (Mpa) | Extension % |
| H59Pb1 | CuZn39-Pb2 (Afnor-51-104) CuZn37-Pb0.5, (Din 17760) C37000 (ASTM) CW617N (EN12165) |
8.4 | 80-120 | 350 | 15-30% |
| Cu | Fe | Pb | Ni | Zn | Impurities total |
| 57~60% | ≤ 0.5% | 0.08-1.9% | ≤1 % | surplus | ≤1% |
2. Brass Rohs compliance
According to the Directive 2011/65/ dated June 8, 2011 (Rohs), copper alloys are allowed to have a maximum of 4% by weight of lead as an alloying element.
(Provisions of Article 4 and paragraph 1 of Annex II, limit value set by 6c of Annex III)