Brass Lomsh70-1-0,04

Designation

Name The value
Designation GOST Cyrillic ЛОМш70-1-0,04
Designation GOST Latin LOMsh70-1-0,04
Transliteration LOMsh70-1-004
By chemical elements ЛSnCuш70-1-0,04

Description

Brass Lomsh70−1-0,04 used: for the manufacture of condenser tubes; drawn tubes for heat exchangers.

Note

Complex alloyed brass.

Standards

Name Code Standards
Tape В54 GOST 15527-2004
Tubes of non-ferrous metals and alloys В64 GOST Р 51573-2000

Chemical composition

Standard P Fe Cu As Zn Sn Sb Pb Bi
GOST 15527-2004 ≤0.01 ≤0.07 69-71 0.02-0.04 Rest 1-1.5 ≤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. The manufacture of brass is allowed without the mass fraction of arsenic.

Mechanical properties

sT|s0,2, MPa σU, MPa d10 HV, MPa
Tube, drawn, 10-50 mm for heat exchangers supplied according to GOST R 51573-2000 (samples)
≥100 ≥320 ≥45 -
≥150 ≥360 ≥40 80-125

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
d10 Elongation after rupture
HV The Vickers hardness

Physical characteristics

Temperature Е, HPa r, kg/m3 l, W/(m · °C) R, Mr. · m
20 104 8600 117 710

A description of the physical symbols

Name Description
r Density
l Coefficient of thermal conductivity