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Brass Lsch

Designation

Name The value
Designation GOST Cyrillic ЛСч
Designation GOST Latin LCch
Transliteration LSch
The chemical elements ЛPbч

Description

Brass Lsch is used: for the manufacture of injection molding and other types of casting; gas, sanitary, hydraulic and pneumatic fittings; bushing and bearing cages.

Note

Brass stamps Lsch is a charging material for the melting of brass stamps LC40S.

Standards

Name Code Standards
Secondary non-ferrous metals, alloys and wastes В57 GOST 1020-97

Chemical composition

Standard Mn Si Fe Cu Al Zn Sn Sb Pb
GOST 1020-97 ≤0.5 ≤0.2 ≤0.6 56-61 ≤0.5 The rest ≤0.5 ≤0.05 0.8-1.5
Zn is the basis.
In the mass fraction of copper, nickel can be included, in which case nickel is not taken into account in the sum of the impurities.
Total total content of impurities is ≤1.70%.
The ratio (Fe + Mn) / Si should be: for brass grades LCh - from 2 to 5.

Mechanical characteristics

sT|s0,2, MPa σB, MPa d5, %
Chill casting
188-282 371-508 ≥10

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

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