Brass Lomsh70-1-0,05

Designation

Name The value
Designation GOST Cyrillic ЛОМш70-1-0,05
Designation GOST Latin LOMsh70-1-0,05
Transliteration LOMsh70-1-005
By chemical elements ЛSnCuш70-1-0,05

Description

Brass Lomsh70−1-0,05 used: for the manufacture of condenser tubes; drawn and cold-rolled pipes used in heat exchangers.

Note

Complex alloyed brass.
According to GOST 28873−90 brass Lomsh70−1-0,05 not recommended for use with 01.01.1992 g. in the newly created and upgraded technology. Instead, it is recommended to use a brand Lamsh77−2-0,05.

Standards

Name Code Standards
Tape В54 GOST 15527-2004
Tubes of non-ferrous metals and alloys В64 GOST 21646-2003
Non-ferrous metals, including rare, and their alloys В51 GOST 28873-90

Chemical composition

Standard P Fe Cu As Zn Sn Sb Pb Bi
GOST 15527-2004 ≤0.01 ≤0.1 69-71 0.02-0.06 Rest 1-1.5 ≤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 properties

σU, MPa d10
Tubes round, drawn and cold-rolled steel in the delivery state according to GOST 21646-2003 (samples)
≥320 ≥45
≥370 ≥40

Description mechanical marks

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

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
l Coefficient of thermal conductivity