Brass LC16K4 (ЛК80-3L)
Designation
| Name |
The value |
| Designation GOST Cyrillic |
ЛЦ16К4 |
| Designation GOST Latin |
LTs16K4 |
| Transliteration |
LTs16K4 |
| The chemical elements |
ЛZn16Co4 |
| Name |
The value |
| Designation GOST Cyrillic |
ЛК80-3Л |
| Designation GOST Latin |
LK80-3L |
| Transliteration |
LK80-3L |
| The chemical elements |
ЛCo80-3 |
Description
Brass LC16K4 used: for the manufacture of castings of complex configuration parts, fixtures and fittings operating at temperatures to +250 °C and exposed to hydrovodone testing; casting parts for shipbuilding, marine engineering and instrumentation, working in the sea water while providing cathodic protection (gear, parts of friction units); casting parts of valves and actuators to it.
Note
Brass siliceous.
Standards
| Name |
Code |
Standards |
| Non-ferrous metals, including rare metals, and their alloys |
В51 |
GOST 17711-93, GOST Р 50425-92, OST 4.021.009-92, OST 4.021.011-92 |
| Castings from non-ferrous metals and alloys |
В84 |
OST 1 90046-72, OST 5Р.9209-82 |
| Castings of cast iron (gray and malleable cast iron) |
В81 |
OST 24.207.01-90 |
Chemical composition
| Standard |
P |
Mn |
Si |
Ni |
Fe |
Cu |
Al |
Zn |
Sn |
Sb |
Pb |
| OST 5Р.9209-82 |
≤0.1 |
≤0.8 |
3-4.5 |
≤0.2 |
≤0.6 |
78-81 |
≤0.04 |
The rest |
≤0.3 |
≤0.1 |
≤0.5 |
Zn is the basis.
According to GOST 17711-93 and OST 5P.9209-82, the total amount of impurities should be ≤ 2.5%. Impurities not specified are taken into account in the total amount of impurities. The mass fraction of nickel in brass is allowed at the expense of copper and is not included in the sum of impurities. Upon agreement of the manufacturer with the consumer, the mass fraction of aluminum is allowed up to 0.10% in the manufacture of parts that do not require hydraulic density.
Mechanical characteristics
| sT|s0,2, MPa |
σB, MPa |
d5, % |
kJ/m2, кДж/м2 |
Brinell hardness number, MPa |
| Castings are supplied without heat treatment |
| ≥117.6 |
≥343 |
≥15 |
≥686 |
≥110 |
| ≥117.6 |
≥294 |
≥15 |
≥686 |
≥100 |
| ≥117.6 |
≥294 |
≥12 |
≥392 |
- |
| Casting investment casting according to OST 1 90046-72 (samples separately cast or cut from castings) |
| - |
≥245 |
≥10 |
- |
≥90 |
Description mechanical marks
| Name |
Description |
| sT|s0,2 |
Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2% |
| σB |
Limit short-term strength |
| d5 |
Elongation after rupture |
| kJ/m2 |
Toughness |
Physical characteristics
| Temperature |
Е, ГПа |
r, кг/м3 |
l, Вт/(м · °С) |
R, НОм · м |
| 20 |
104 |
8200 |
879 |
200 |
A description of the physical symbols
| Name |
Description |
| r |
Density |
| l |
Coefficient of thermal conductivity |
| R |
UD. the resistivity |
