Brass L75mk used: for the manufacture of the strips; drawn tubes for heat exchangers; parts of various industrial method of deformation in hot and cold condition.

Note

Complex alloyed brass.

Standards

Name	Code	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	Mn	Si	Ni	Fe	Cu	Zn	Sb	Pb	Bi
Standard	P	Mn	Si	Ni	Fe	Cu	Zn	Sb	Pb	Bi
GOST Р 51573-2000	0.005-0.02	0.05-0.15	0.25-0.5	0.1-0.25	0.03-0.06	70-76	Rest	≤0.005	≤0.07	≤0.002

Cu is the basis.
According to GOST R 51573-2000, GOST 15527-2004 the amount of other elements should be ≤ 0.10%.

Mechanical properties

s_T\|s_0,2, MPa	σ_U, MPa	d₁₀	HV, MPa
s_T\|s_0,2, MPa	σ_U, MPa	d₁₀	HV, MPa
Tube, drawn, 10-50 mm for heat exchangers supplied according to GOST R 51573-2000 (samples)
-	≥350	≥45	-
≥130	≥400	≥40	80-130

Description mechanical marks

Name	Description
Name	Description
s_T\|s_0,2	Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σ_U	Limit short-term strength
d₁₀	Elongation after rupture
HV	The Vickers hardness

Physical characteristics

Temperature	Е, HPa	r, kg/m³	R, Mr. · m
Temperature	Е, HPa	r, kg/m³	R, Mr. · m
20	103	8630	57

A description of the physical symbols

Name	Description
Name	Description
r	Density
l	Coefficient of thermal conductivity

Brass L75mk

Designation

Description