Bronze Bra10zh3mc2 (Brazhmc10-3-2)

Designation

Name The value
Designation GOST Cyrillic БрА10Ж3Мц2
Designation GOST Latin BpA10Zh3Mts2
Transliteration BrA10G3Mts2
By chemical elements BaAl10Fe3Mn2
Name The value
Designation GOST Cyrillic БрАЖМц10-3-2
Designation GOST Latin BpAZhMts10-3-2
Transliteration BrAGMts10-3-2
By chemical elements BaAlFeMn10-3-2

Description

Bronze Bra10zh3mc2 used: for the manufacture of ingots from scrap and waste of nonferrous metals and alloys used as charge material for the manufacture of aluminum casting of bronze Bra10zh3mc2 according to GOST 493−79; ingots for producing forgings; anti-friction casting parts; parts of valves and actuators to it; casting parts mining and metallurgical machinery; casting parts, metallurgical engineering (parts requiring, in addition to anti-friction properties, increased hardness and strength (nuts, bushings, inserts)); parts subjected to welding; pipe fittings and systems for various environments with temperatures up to +265 °C; bushings, bearings, plates and saddles of valves, rods, nuts, cap grindbox, cylindrical and conical gear wheels, worm wheels, nuts, lead screw).

Note

Aluminum bronze Cu-Al-Fe. The coefficient of friction of bronze without lubrication 0,21−0,25; with grease — 0,004−0,012. The maximum permissible speed is 5 m/s.

Standards

Name Code Standards
Castings with special properties (iron and steel) В83 KSt 81-033:2009
Non-ferrous metals, including rare, and their alloys В51 GOST 493-79, GOST 614-97, GOST 17328-78, STP М314-95
Castings, non-ferrous metals and alloys В84 OST 1 90046-72, OST 24.916.01-71
Cast iron castings (grey and malleable cast iron) В81 OST 24.207.01-90

Chemical composition

Standard P Mn Si Ni Fe Cu As Al Zn Sn Sb Pb
OST 24.916.01-71 ≤0.01 1-2 ≤0.1 ≤0.5 2-4 Rest ≤0.01 9-11 ≤0.5 ≤0.1 ≤0.002 ≤0.03
KSt 81-033:2009 ≤0.01 1-3 ≤0.1 ≤0.5 2-4 Rest - 9-11 ≤0.5 ≤0.1 ≤0.05 ≤0.3
STP М314-95 ≤0.01 1-3 ≤0.1 ≤0.5 2-4 Rest ≤0.01 9-11 ≤0.5 ≤0.1 ≤0.05 ≤0.3
GOST 614-97 ≤0.03 1.3-3 ≤0.2 ≤0.5 2-4 Rest ≤0.01 9-11 ≤1 ≤0.1 ≤0.05 ≤0.1
GOST 17328-78 ≤0.03 1-3 ≤0.2 ≤0.5 2-4 Rest ≤0.01 9-11 ≤1 ≤0.1 ≤0.05 ≤0.1
Cu is the basis.
According to GOST 493-79 and STP M314-95 the total content of impurities is ≤ 1,0%. Impurities, which are not regulated, are included in the total amount of impurities.
According to OST 24.916.01-71 the total content of impurities should be ≤ 0.75%. The zinc content is allowed up to 1.00% in those cases when bronze is not used as an antifriction material, the total amount of impurities in this case being ≤ 1.25%. The lead content is allowed up to 0.30% when used for shaped casting, with the total amount of impurities being allowed to be ≤ 1.00%.
According to GOST 17328-78, the total content of impurities is ≤ 1.70%. At the consumer's request, the mass fraction of silicon should be ≤ 0.10%, phosphorus ≤ 0.010%, zinc ≤ 0.50%, and total impurities ≤ 1.0%. The mass fraction of nickel is allowed at the expense of copper and is not included in the total amount of impurities. Impurities not regulated by the standard are included in the total amount of impurities.
According to GOST 614-97, the chemical composition is given for bronze БрА10Ж3Мц2, made in the form of pigs from scrap and wastes of non-ferrous metals and alloys. The total mass fraction of impurities is ≤ 1.70%. Nickel can be included in the mass fraction of copper - in this case nickel in the sum of impurities is not taken into account. The content of arsenic, antimony, silicon and phosphorus is determined at the request of the customer.

Mechanical properties

σU, MPa d5, % HB, MPa
Castings are supplied without heat treatment
≥392 ≥10 ≥100
≥490 ≥12 ≥120
≥490 ≥12 ≥110
Casting investment casting according to OST 1 90046-72 (samples separately cast or cut from castings)
≥441 ≥10 ≥110

Description mechanical marks

Name Description
σU Limit short-term strength
d5 Elongation after rupture
HB Brinell hardness number

Physical characteristics

Temperature Е, HPa r, kg/m3 l, W/(m · °C) R, Mr. · m
20 98 7500 586 189

A description of the physical symbols

Name Description
l Coefficient of thermal conductivity
R UD. the resistivity