Bronze Brb2,5

Designation

Name The value
Designation GOST Cyrillic БрБ2,5
Designation GOST Latin BpB2,5
Transliteration BrB25
By chemical elements BaBe2,5

Description

Bronze Brb2,5 is used: for the manufacture of springs and elastic elements.

Note

According to GOST 28873−90 bronze Brb2,5 be removed from production from 01.01.1992 G.

Standards

Name Code Standards
Non-ferrous metals, including rare, and their alloys В51 GOST 28873-90
Tape В54 TU 48-21-96-89

Chemical composition

Standard Si Ni Fe Cu Al Pb Be
≤0.15 0.2-0.5 ≤0.15 Rest ≤0.15 ≤0.005 2.3-2.6
Cu is the basis.
The total mass fraction of impurities is ≤ 0.50%.

Mechanical properties

Section, mm σU, MPa d5, % HB, MPa
Rolled steel in delivery condition (longitudinal samples)
≥580 ≥25 ≥130
≥1350 1-2 -

Description mechanical marks

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