Steel 32Х2НВМБР (ERC-32)

Designation

Name The value
Designation GOST Cyrillic 32Х2НВМБР
Designation GOST Latin 32X2HBMBP
Transliteration 32H2NVMBR
By chemical elements 32Cr2НWMoNbB
Name The value
Designation GOST Cyrillic КВК-32
Designation GOST Latin KBK-32
Transliteration KVK-32
By chemical elements CoWCo-32

Description

32Х2НВМБР steel is used: for the manufacture of hot-rolled bars, sections and steel plates, forgings and stampings, is suitable for the production of various parts of machinery; seamless cold rolled and hot rolled pipes.

Standards

Name Code Standards
Bars and shapes В22 GOST 2590-2006, GOST 2591-2006
Blanks. Of the workpiece. Slabs В21 OST 14-13-75
Norms for calculation and design В02 PI 1.2.053-78
Blanks. Of the workpiece. Slabs В31 TU 1-92-156-90
Sheets and strips В33 TU 14-1-1236-74
Bars and shapes В32 TU 14-1-1310-75, TU 14-1-2264-77
Steel pipes and fittings to them В62 TU 14-3-479-75, TU 14-3-533-76, TU 14-3-905-79

Chemical composition

Standard C S P Mn Cr Si Ni Fe B Mo Nb W
TU 14-1-1310-75 0.29-0.34 ≤0.012 ≤0.012 0.6-0.9 1.8-2.2 0.4-0.6 0.6-0.9 Rest 0.001-0.003 0.15-0.25 0.01-0.03 0.5-0.9
Fe is the basis.
According to TU 14-1-1310-75 and TU 14-1-2264-77 the chemical composition is given for steel 32Х2НВМБР (КВК-32). The total content of sulfur and phosphorus should not exceed 0.022%. Boron is introduced by calculation and chemical analysis is not determined. Deviations in chemical composition - in accordance with GOST 4543.

Mechanical properties

Section, mm σU, MPa d5, % y, % KCU, kJ/m2
Bars hot rolled on the other 1-92-156-90, THE 14-1-1310-75. Quenching in oil or air from 920-960 °C + Vacation at 200-240 °C, cooling in oil or air
≥1568 ≥8 ≥40 ≥490
Bars hot rolled on the other 14-1-2264-77. The longitudinal samples. Quenching in oil or air from 925-955 °C + Vacation at 200-240 °C, air cooling
≥1570 ≥8 ≥40 ≥380

Description mechanical marks

Name Description
σU Limit short-term strength
d5 Elongation after rupture
y The relative narrowing
KCU Toughness