Brass Lc40mc3zh (ЛМцЖ55-3-1)
Designation
Name |
The value |
Designation GOST Cyrillic |
ЛЦ40Мц3Ж |
Designation GOST Latin |
LTs40Mts3Zh |
Transliteration |
LTs40Mts3G |
The chemical elements |
ЛZn40Mn3Fe |
Name |
The value |
Designation GOST Cyrillic |
ЛМцЖ55-3-1 |
Designation GOST Latin |
LMtsZh55-3-1 |
Transliteration |
LMtsG55-3-1 |
The chemical elements |
ЛMnFe55-3-1 |
Description
Brass Lc40mc3zh used: for the manufacture of casting parts for shipbuilding, ship engineering and instrumentation; casting a simple configuration of parts critical applications and the reinforcement of naval shipbuilding, working at temperatures up to +300 °C; massive parts, propellers and blades for the tropics.
Note
Brass manganese-iron.
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 |
Al |
Zn |
Sn |
Sb |
Pb |
OST 5Р.9209-82 |
≤0.05 |
3-4 |
≤0.2 |
≤0.5 |
0.5-1.5 |
53-58 |
≤0.6 |
The rest |
≤0.5 |
≤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 ≤ 1.70%. 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. In the brass used for casting propellers, the mass fraction of copper should be 55.0-58.0%, aluminum - no more than 0.80%, lead - no more than 0.30%.
Mechanical characteristics
sT|s0,2, MPa |
σB, MPa |
d5, % |
kJ/m2, кДж/м2 |
Brinell hardness number, MPa |
Castings on OST 1 90077-72 |
≥196 |
≥490 |
≥10 |
- |
≥100 |
≥186 |
≥441 |
≥18 |
≥392 |
≥90 |
- |
≥392 |
≥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 |