Bronze Bro3c7s5n1 (БрОЦСН3-7-5-1)

Designation

Name The value
Designation GOST Cyrillic БрО3Ц7С5Н1
Designation GOST Latin BpO3Ts7C5H1
Transliteration BrO3Ts7S5N1
By chemical elements BaSn3Zn7Pb5Ni1
Name The value
Designation GOST Cyrillic БрОЦСН3-7-5-1
Designation GOST Latin BpOTsCH3-7-5-1
Transliteration BrOTsSN3-7-5-1
By chemical elements BaSnZnPbNi3-7-5-1

Description

Bronze Bro3c7s5n1 used: for the manufacture of castings of parts operating in oil, steam and fresh water; details of pipeline valves and actuators to it; casting parts for shipbuilding, ship engineering and instrumentation.

Standards

Name Code Standards
Bars В55 GOST 24301-93
Non-ferrous metals, including rare, and their alloys В51 GOST 613-79
Cast iron castings (grey and malleable cast iron) В81 OST 24.207.01-90
Castings, non-ferrous metals and alloys В84 OST 5Р.9209-82
Castings with special properties (iron and steel) В83 TU 48-0601-1-97

Chemical composition

Standard S P Si Ni Fe Cu As Al Zn Sn Sb Pb Mg
GOST 613-79 ≤0.05 ≤0.05 ≤0.02 0.5-2 ≤0.4 Rest ≤0.15 ≤0.02 6-9.5 2.5-4 ≤0.5 3-6 ≤0.02
Cu is the basis.
According to GOST 613-79 and OST 5P.9209-82, the total content of impurities should be ≤ 1.30%. Impurities not regulated by the standard are included in the total amount of impurities. The sum of impurities of silicon and aluminum should not exceed 0.020%. In bronze, not intended for casting parts operating under hydraulic pressure, the manufacturer's agreement with the consumer allows the mass fraction of aluminum to 0.050% and silicon - up to 0.050%.

Mechanical properties

Section, mm sT|s0,2, MPa σU, MPa d5, % KCU, kJ/m2 HB, MPa
Castings are supplied without heat treatment
- ≥49 ≥176 ≥8 ≥98 ≥60
- ≥39 ≥206 ≥5 ≥98 ≥60
Rods and tubes of the first group is made by a horizontal molding according to GOST 24301-93 (in parentheses are the values for the casting of the second group of castings)
- ≥220 (180) ≥20 (16) - ≥65 (60)

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
KCU Toughness
HB Brinell hardness number

Physical characteristics

Temperature Е, HPa r, kg/m3 l, W/(m · °C)
20 84 8700 628

A description of the physical symbols

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