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Babbit B16

Designation

Name The value
Designation GOST Cyrillic Б16
Designation GOST Latin B16
Transliteration B16
The chemical elements Be16

Description

Babbit B16 is used: for the manufacture of ingots used to fill the bearings and other components; motor-axial bearings of locomotives, track machines, parts of locomotives and other equipment heavy machinery (bearings, gear train, rolling mill, crushers, ball and tube mills); the engine and metallurgical engineering (to fill the support bearings of steam turbines, ship and stationary steam engines power up to 1200 HP, steam engines, turbines, electric locomotives, motors up to 270 kW., generators up to 500 kW., compressors with capacity of 500 HP, lifting machines with power up to 1800 HP

Note

At room temperature babbit fragile, in bearings under shock loads will crack and crumble.
The coefficient of friction of the babbit without lubrication of 0.25, with lubricant — 0,006. The maximum allowable rotation speed is 6 m/sec. Maximum load rating: static — 150 kgf/cm2, dynamic — 500 kgf/cm2 sec. The maximum temperature of normal bearing operation — +110 °C. recommended fill thickness ≥1.00 mm.

Standards

Name Code Standards
Non-ferrous metals, including rare metals, and their alloys В51 GOST 1320-74, STP М320-74
Castings from non-ferrous metals and alloys В84 OST 24.916.01-71
Test methods. Packaging. Marking В59 STP М320-2003

Chemical composition

Standard Fe Cu As Al Zn Sn Sb Pb Bi
GOST 1320-74 (ИСО 4383-91 ≤0.08 1.5-2 ≤0.2 ≤0.01 ≤0.07 15-17 15-17 The rest ≤0.1
OST 24.916.01-71 ≤0.1 1.5-2 ≤0.3 - ≤0.15 15-17 15-17 The rest ≤0.1
STP М320-74 ≤0.1 1.5-2 ≤0.3 ≤0.01 ≤0.15 15-17 15-17 The rest ≤0.1
Pb is the basis.
The total content of impurities by OST 24.916.01-71 should be ≤ 0.60%. Cadmium is allowed up to 0.10% and nickel to 0.50%.
The content of tin by OST 24.916.01-71, STP M320-74 and STP M320-2003 should not exceed the content of antimony.

Mechanical characteristics

σB, MPa d Brinell hardness number, MPa
In the delivery condition
≥77 ≥0.2 ≥30

Description mechanical marks

Name Description
σB Limit short-term strength
d Elongation after rupture

Physical characteristics

Temperature r, кг/м3
20 9290

A description of the physical symbols

Name Description
l Coefficient of thermal conductivity
С Specific heat

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