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 |
