Brass Lmcs (ЛМцС58-2-2)
Designation
Name |
The value |
Designation GOST Cyrillic |
ЛМцС |
Designation GOST Latin |
LMtsC |
Transliteration |
LMtsS |
The chemical elements |
ЛMnPb |
Name |
The value |
Designation GOST Cyrillic |
ЛМцС58-2-2 |
Designation GOST Latin |
LMtsC58-2-2 |
Transliteration |
LMtsS58-2-2 |
The chemical elements |
ЛMnPb58-2-2 |
Description
Brass Lmcs is used: for the manufacture of structural parts, equipment and shipbuilding; anti-friction parts with a simple configuration; the reinforcement of railway bearings; casting parts, metallurgical machinery (bearings, bushings and other friction parts, including reinforcement of railway bearings).
Note
Brass stamps Lmcs is a charging material for the melting of brass stamps Lc38mc2s2. The coefficient of friction of brass without lubrication of 0.24, with a lubricant — 0,016. Maximum load: static 100 kg/cm2, the dynamic is 60 kgf/cm2 sec.
Standards
Name |
Code |
Standards |
Secondary non-ferrous metals, alloys and wastes |
В57 |
GOST 1020-97 |
Castings from non-ferrous metals and alloys |
В84 |
OST 24.916.01-71 |
Chemical composition
Standard |
P |
Mn |
Si |
Ni |
Fe |
Cu |
As |
Al |
Zn |
Sn |
Sb |
Pb |
Bi |
GOST 1020-97 |
≤0.05 |
1.8-2.5 |
≤0.4 |
≤1 |
≤0.8 |
56-60 |
≤0.05 |
≤0.8 |
The rest |
≤0.5 |
≤0.1 |
1.5-2.5 |
≤0.01 |
OST 24.916.01-71 |
- |
1.5-2.5 |
- |
≤1 |
≤0.8 |
57-60 |
- |
≤1 |
The rest |
≤0.5 |
≤0.1 |
1.5-2.5 |
- |
Zn is the basis.
According to GOST 1020-97, nickel can be included in the mass fraction of copper, in this case nickel in the sum of impurities is not taken into account. Total total content of impurities is ≤2,20%.
According to OST 24.916.01-71 the total content of impurities is ≤ 2.50%. The content of nickel is allowed due to the copper content.
Mechanical characteristics
σB, MPa |
d |
Brinell hardness number, MPa |
Casting as supplied. Without heat treatment |
≥343 |
≥8 |
≥90 |
≥245 |
≥10 |
≥70 |
Description mechanical marks
Name |
Description |
σB |
Limit short-term strength |
d |
Elongation after rupture |
Physical characteristics
Temperature |
r, кг/м3 |
20 |
8500 |
A description of the physical symbols
Name |
Description |
l |
Coefficient of thermal conductivity |
С |
Specific heat |