Alloy Grade UNS: BEARIUM® B-11 – Leaded Bronzes 

  • Overview

    Bearium B-11 is a high-performance leaded bronze alloy that offers exceptional friction properties and superior strength within the Bearium family. This alloy features a unique microstructure with uniformly dispersed lead particles, resulting in excellent wear resistance and hardness. Composed of 70% copper, 10% tin, 2% nickel, and 18% lead, Bearium B-11 provides the highest tensile and yield strength among Bearium alloys. Ideal for demanding industrial applications, Bearium B-11 excels in environments with high speeds, poor lubrication, heat-generating loads, and elevated temperatures. It is particularly well-suited for bearings, bushings, and other components subjected to rubbing friction. The alloy's superior resistance to scoring and seizure makes it an excellent choice for applications where conventional bearing bronzes may fail, such as in dusty or gritty surroundings or when non-oil lubricants are used

  • Typical Uses

    Bearings, bushings, cryogenic components, pump and valve components, shaft sleeves, turbine thrust bearings, wear rings.

  • MetalTek Grade

    BEARIUM® B-11

Similar Specifications

Typical Chemical Composition (% by wt.)

Aluminum: n/a

Carbon: n/a

Chromium: n/a

Manganese: n/a

Iron: n/a

Copper: 70

Nickel: 1.5

Lead: 18

Tin: 10

Silicon: n/a

Zinc: n/a 18

Minimum Mechanical Properties

Tensile, ksi

0

Tensile, MPa

0

Yield, ksi

0

Yield, MPa

0

Elongation

0%

NOTES: Typical properties.