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Brass Lamsh77-2-0,05

Designation

Name The value
Designation GOST Cyrillic ЛАМш77-2-0,05
Designation GOST Latin LAMsh77-2-0,05
Transliteration LAMsh77-2-005
The chemical elements ЛAlCuш77-2-0,05

Description

Brass Lamsh77−2-0,05 used: for the manufacture of condenser pipes of sea vessels; drawn and cold-rolled pipes used in heat exchangers.

Note

Complex alloyed brass.

Standards

Name Code Standards
Tapes В54 GOST 15527-2004
Pipes from non-ferrous metals and alloys В64 GOST 21646-2003, TU 48-21-556-76
Non-ferrous metals, including rare metals, and their alloys В51 GOST 28873-90

Chemical composition

Standard P Fe Cu As Al Zn Sb Pb Bi
GOST 15527-2004 ≤0.01 ≤0.1 76-79 0.02-0.06 1.7-2.5 The rest ≤0.005 ≤0.07 ≤0.002
Cu is the basis.
According to GOST 15527-2004 the sum of other elements should be ≤ 0.30%. In brass, the mass fraction of nickel is allowed up to 0.50% due to the mass fraction of copper, which is not taken into account in the sum of other impurities.

Mechanical characteristics

σB, MPa d10
Tubes round, drawn and cold-rolled steel in the delivery state according to GOST 21646-2003 (samples)
≥320 ≥42
≥370 ≥40

Description mechanical marks

Name Description
σB Limit short-term strength
d10 Elongation after rupture

Physical characteristics

Temperature Е, ГПа r, кг/м3 l, Вт/(м · °С) R, НОм · м
20 102 8700 134 68

A description of the physical symbols

Name Description
l Coefficient of thermal conductivity

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