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Brass Lamsh77-2-0,04

Designation

Name The value
Designation GOST Cyrillic ЛАМш77-2-0,04
Designation GOST Latin LAMsh77-2-0,04
Transliteration LAMsh77-2-004
The chemical elements ЛAlCuш77-2-0,04

Description

Brass Lamsh77−2-0,04 used: for the manufacture of condenser pipes of sea vessels; drawn tubes for heat exchangers.

Note

Complex alloyed brass.

Standards

Name Code Standards
Tapes В54 GOST 15527-2004
Pipes from non-ferrous metals and alloys В64 GOST Р 51573-2000

Chemical composition

Standard P Fe Cu As Al Zn Sb Pb Bi
GOST Р 51573-2000 ≤0.01 ≤0.1 76-79 0.02-0.04 1.7-2.5 The rest ≤0.005 ≤0.07 ≤0.002
Cu is the basis.
According to GOST R 51573-2000, 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. In brass, the total mass fraction of phosphorus and arsenic should not be more than 0.040%.

Mechanical characteristics

sT|s0,2, MPa σB, MPa d10 HV, MPa
Tube, drawn, 10-50 mm for heat exchangers supplied according to GOST R 51573-2000 (samples)
≥120 ≥320 ≥42 -
≥150 ≥370 ≥40 80-130

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
d10 Elongation after rupture
HV The Vickers hardness

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
r Density
l Coefficient of thermal conductivity

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