GOST 15527-2004. Copper-zinc alloys (brass), machined by pressure. Grades
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GOST 15527-2004. Bibliography
| Status of the document: | Valid from 01.07.2005 |
| Name in English | Pressure treated copper zinc alloys (brasses). Grades |
| Type of standard | Product (service) standards |
| Date of last publication | 2004-11-05 |
| OKP code | 180000 |
| CGS code | В54 |
| Number of pages | 14 |
| Purpose | This standard applies to copper-zinc alloys (brass) machined by pressure |
| The document is developed by the organization | Gosstandart of Russia |
| Document was adopted by the organization | Interstate Council for Standardization, Metrology and Certification, protocol No. 17 (by correspondence) |
Composition of deformable brass
The standard stipulates the grades of simple brasses, both domestic and imported, capable of plastic deformation in the cold state. These include:
| Name | Mark of the alloy | Mark of the alloy | Cu | Fe | Mn | Al | Si | Sn | Ni | Zn | |
| Tompak | CuZn5 | Л96 | 95,0-97,0 | - | - | - | - | - | - | The post. | |
| Tompak | CuZn10 | Л90 | 88,0-91,0 | - | - | - | - | - | - | Same | |
| Semi-tompact | CuZn15 | Л85 | 84,0-86,0 | - | - | - | - | - | - | ||
| Semi-tompact | CuZn20 | Л80 | 79,0-81,0 | - | - | - | - | - | - | ||
| Brass | CuZn30 | Л70 | 69,0-72,0 | - | - | - | - | - | - | ||
| --- "--- | CuZn32 | Л68 | 67,0-70,0 | - | - | - | - | - | - | ||
| --- "--- | CuZn37 | Л63 | 62,0-65,0 | - | - | - | - | - | - | ||
| --- "--- | CuZn40 | Л60 | 59,0-62,0 | - | - | - | - | - | - | - | |
| Brass aluminum | CuZn20A12 | LA77-2 | 76,0-79,0 | - | - | 1,7-2,5 | - | - | - | ||
| aluminum-iron | CuZn38A11Mn2A11 | LAF60-1-1 | 58,0-61,0 | 0,75-1,50 | 0,1-0,6 | 0,7-1,5 | - | - | - | ||
| Brass aluminum-nickel | - | LAHN59-3-2 | 57,0-60,0 | - | - | 2,5-3,5 | - | - | 2,0-3,0 | ||
| iron-manganese | - | LZMc59- 1-1 |
57,0-60,0 | 0,6-1,2 | 0,5-0,8 | 0,1-0,4 | 0,3-0,7 | - | - | ||
| Brass nickel | - | LN65-5 | 64,0-67,0 | - | - | - | - | - | 5,0-6,5 | ||
| Manganese | CuZn40Mn1 | LMz58-2 | 57,0-60,0 | - | 1,0-2,0 | - | - | - | - | ||
| Brass manganese-aluminum |
CuZn40A11Mn | LMzA57-3-1 | 55,0-58,5 | up to 1 | 2,5-3,5 | 0,5-1,5 | - | - | - | ||
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Special orders
According to special orders other brass grades can also be produced, the production technology of which does not require a radical rework of the existing metallurgical production. In lead brass, in addition, the presence of nickel (not more than 0.5...1.0%) is allowed. GOST stipulates also that the combined percentage of antimony and silicon in the composition of any brass should not be above 0.5%.
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