Brass Lc40mc3zh (ЛМцЖ55-3-1)

Designation

Name The value
Designation GOST Cyrillic ЛЦ40Мц3Ж
Designation GOST Latin LTs40Mts3Zh
Transliteration LTs40Mts3G
By chemical elements ЛZn40Mn3Fe
Name The value
Designation GOST Cyrillic ЛМцЖ55-3-1
Designation GOST Latin LMtsZh55-3-1
Transliteration LMtsG55-3-1
By 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, and their alloys В51 GOST 17711-93, GOST Р 50425-92
Castings, 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 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 properties

sT|s0,2, MPa σU, MPa d5, % KCU, kJ/m2 HB, 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%
σU Limit short-term strength
d5 Elongation after rupture
KCU Toughness
HB Brinell hardness number