Bronze БрБ1,9НТ (Brbnt1,9)

Designation

Name The value
Designation GOST Cyrillic БрБ1,9НТ
Designation GOST Latin BpB1,9HT
Transliteration BrB19NT
By chemical elements BaBe1,9NiTe
Name The value
Designation GOST Cyrillic БрБНТ1,9
Designation GOST Latin BpBHT1,9
Transliteration BrBNT19
By chemical elements BaBeNiTe1,9

Description

Bronze БрБ1,9НТ used: for the manufacture of semi-finished products (strips and stripes); the springs and elastic sensing elements in instruments, spring details of responsible destination; wear-resistant parts of all kinds; non-sparking tools.

Note

Beryllium bronze Brbnt1,9 has high strength and wear resistance, good sliding properties, very good deformability in the hardened state, the average electrical conductivity and thermal conductivity.
Analogue of bronze Brbnt1,9 at the CMEA 377−76 is bronze CuBe2NiTi.

Standards

Name Code Standards
Sheets and strips В53 GOST 1789-2013
Non-ferrous metals, including rare, and their alloys В51 GOST 18175-78, GOST 28873-90
Tape В54 TU 48-0812-15-90, TU 48-21-265-87, TU 48-21-743-92

Chemical composition

Standard Si Ni Fe Cu Al Ti Pb Be
GOST 18175-78 ≤0.15 0.2-0.4 ≤0.15 Rest ≤0.15 0.1-0.25 ≤0.005 1.85-2.1
Cu is the basis.
According to GOST 18175-78, the total mass fraction of normalized impurities is ≤ 0.50%.

Mechanical properties

Section, mm σU, MPa d5, % HV, MPa
Strip or tape according to GOST 1789-2013. Hardening in air, 305-315 °C (exposure for 2.5 hours + warm-up time of charge) + the Deformation of 30-40 %
0.15-0.25 590-880 - ≥160
0.15 - - ≥160
0.25 640-930 ≥2.5 ≥160
Strip or tape according to GOST 1789-2013. Hardening in air, 305-315 °C (exposure for 2.5 hours + warm-up time of charge) + the Deformation of 30-40 % + Aging (dispersion hardening)
0.15-0.25 1130-1570 - ≥360
0.15 - - ≥360
0.25 1170-1570 ≥1.5 ≥360
Strip or tape according to GOST 1789-2013. Hardening in air, 305-315 °C (extract 3 hours + warm-up time of the charge)
0.15-0.25 390-590 ≥20 ≤120
0.15 - - ≤120
0.25 390-590 ≥30 ≤120
Strip or tape according to GOST 1789-2013. Hardening in air, 305-315 °C (extract 3 hours + warm-up time of charge) + Aging (dispersion hardening)
0.15-0.25 1080-1470 - ≥330
0.15 - - ≥330
0.25 1130-1470 ≥2 ≥330

Description mechanical marks

Name Description
σU Limit short-term strength
d5 Elongation after rupture
HV The Vickers hardness

Physical characteristics

Temperature Е, HPa r, kg/m3 l, W/(m · °C) R, Mr. · m
20 130 8300 100 90

A description of the physical symbols

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