Bronze БрК3Мц1 (Brkmc3-1)

Designation

Name The value
Designation GOST Cyrillic БрК3Мц1
Designation GOST Latin BpK3Mts1
Transliteration BrK3Mts1
By chemical elements BaCo3Mn1
Name The value
Designation GOST Cyrillic БрКМц3-1
Designation GOST Latin BpKMts3-1
Transliteration BrKMts3-1
By chemical elements BaCoMn3-1

Description

Bronze БрК3Мц1 used: for the manufacture of semi-finished products (strips, bands, bars and wire); parts of all kinds for chemical apparatus; springs and spring parts; parts for shipbuilding; welded structures; round welding wire and welding rods round drawn and extruded with a diameter of from 1.2 to 8.0 mm, designed for manual welding in shielding gases, non-rigid structures made of copper and automatic copper welding under flux.

Note

Corrosion resistant silicon-manganese heat resisting bronze, is suitable for welding and has high resistance to compression.
Analogue of bronze Brkmc3−1 (БрК3Мц1) at CMEA 377−76 is bronze CuSi3Mn1.

Standards

Name Code Standards
Welding and cutting metals. Soldering, riveting В05 GOST 16130-90
Bars В55 GOST 1628-78, OST 4.021.021-92, OST 4.021.038-92, OST 4.021.042-92, TU 48-21-60-80
Non-ferrous metals, including rare, and their alloys В51 GOST 18175-78, GOST 28873-90, OST 4.021.009-92
Sheets and strips В53 GOST 4748-92, OST 4.021.068-92
Wire from nonferrous metals and their alloys В74 GOST 5222-72, GOST Р 54150-2010, OST 4.021.106-92, OST 4.021.113-92
Tape В54 OST 4.021.081-92, TU 48-21-234-85

Chemical composition

Standard Mn Si Ni Fe Cu Zn Sn Pb
GOST 18175-78 1-1.5 2.7-3.5 ≤0.2 ≤0.3 Rest ≤0.5 ≤0.25 ≤0.03
GOST 16130-90 1-1.5 2.7-3.5 ≤0.2 ≤0.3 Rest ≤0.5 ≤0.25 ≤0.03
Cu is the basis.
According to GOST 18175-78, the total mass fraction of normalized impurities is ≤ 1.0%. According to the manufacturer's agreement with the consumer, up to 2.0% of iron is allowed without taking it into account in the total amount of impurities, and also the content of impurities of arsenic, antimony and phosphorus can be normalized.

Mechanical properties

Section, mm sT|s0,2, MPa σU, MPa d5, % d10 HB, MPa
Band of 1.8-10.0 mm as supplied by OST 4.021.068-92 (samples transverse)
- - ≥350 - ≥35 -
- - ≥760 - - -
- 270-500 470-590 - ≥10 -
- 500-740 590-760 - ≥5 -
Strip and cold-rolled strips, as supplied by the 4748-92 GOST, OST 4.021.081-92 (samples transverse)
≥0.5 - ≥350 - ≥35 -
0.1-0.15 - ≥350 - - -
0.15-0.45 - ≥350 - ≥28 -
≥0.1 - ≥760 - - -
≥0.5 - 470-590 - ≥10 -
0.1-0.15 - 470-590 - - -
0.15-0.45 - 470-590 - ≥5 -
≥0.5 - 590-760 - ≥5 -
0.1-0.15 - 590-760 - - -
0.15-0.45 - 590-760 - ≥2 -
Square cold-drawn wire, General purpose, solid (untreated) supplied by OST 4.021.113-92 (longitudinal samples)
0.6-1 - ≥880 - - -
1.2-2.5 - ≥880 - ≥0.5 -
3 - ≥830 - ≥1 -
The round cold-drawn wire, General purpose, solid (untreated) supplied by OST 4.021.106-92 (longitudinal samples)
0.1-1 - ≥880 - - -
1.1-2.6 - ≥880 - ≥0.5 -
2.8-4.2 - ≥830 - ≥1 -
4.5-8 - ≥810 - ≥1.5 -
8.5-10 - ≥760 - ≥2 -
Rods are supplied according to GOST 1628-78. 4.021.021-92 (longitudinal samples)
30-100 - ≥390 - ≥15 -
30-120 - ≥340 - ≥20 ≥65
13-41 - ≥490 - ≥15 ≥150
5-12 - ≥490 - ≥10 ≥150
Bars drawn square to EAST 4.021.038-92 (longitudinal samples)
14 - ≥490 ≥15 - ≥150
5-12 - ≥490 ≥10 - ≥150
Bars drawn on hex OST 4.021.042-92 (longitudinal samples)
14 - ≥490 ≥15 - ≥160
5-12 - ≥490 ≥10 - ≥160

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
d5 Elongation after rupture
d10 Elongation after rupture
HB Brinell hardness number

Physical characteristics

Temperature Е, HPa r, kg/m3 l, W/(m · °C) R, Mr. · m
20 115 8470 46 250

A description of the physical symbols

Name Description
Е The normal elasticity modulus
r Density
l Coefficient of thermal conductivity
R UD. the resistivity