Brass Lc40mc1,5 (Lmc58-2L)
Designation
| Name |
The value |
| Designation GOST Cyrillic |
ЛЦ40Мц1,5 |
| Designation GOST Latin |
LTs40Mts1,5 |
| Transliteration |
LTs40Mts15 |
| The chemical elements |
ЛZn40Mn1,5 |
| Name |
The value |
| Designation GOST Cyrillic |
ЛМц58-2Л |
| Designation GOST Latin |
LMts58-2L |
| Transliteration |
LMts58-2L |
| The chemical elements |
ЛMn58-2 |
Description
Brass Lc40mc1,5 is used: for the manufacture of castings of simple parts operating under impact loads; parts of friction units operating in conditions of quiet stress at temperatures above 60 °C; casting parts for shipbuilding, ship engineering and instrumentation.
Note
Brass manganese.
Standards
| Name |
Code |
Standards |
| Non-ferrous metals, including rare metals, and their alloys |
В51 |
GOST 17711-93, GOST Р 50425-92 |
| Castings from non-ferrous metals and alloys |
В84 |
OST 5Р.9209-82 |
Chemical composition
| Standard |
P |
Mn |
Si |
Ni |
Fe |
Cu |
Zn |
Sn |
Sb |
Pb |
| GOST 17711-93 |
≤0.03 |
1-2 |
≤0.1 |
≤1 |
≤1.5 |
57-60 |
The rest |
≤0.5 |
≤0.1 |
≤0.7 |
Zn is the basis.
According to GOST 17711-93 and OST 5P.9209-82, the total amount of impurities should be ≤ 2.0%. 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.
Mechanical characteristics
| sT|s0,2, MPa |
σB, MPa |
d5, % |
kJ/m2, кДж/м2 |
Brinell hardness number, MPa |
| Castings on OST 1 90077-72 |
| ≥147 |
≥392 |
≥20 |
≥1176 |
≥110 |
| ≥147 |
≥372 |
≥20 |
≥1176 |
≥100 |
| ≥147 |
≥392 |
≥20 |
≥1176 |
≥110 |
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 |
