Steel 10ГНБ

Designation

Name The value
Designation GOST Cyrillic 10ГНБ
Designation GOST Latin 10GHB
Transliteration 10GNB
By chemical elements 10MnНNb

Description

10ГНБ steel is used: for the production of billets, sheet ingots used for the production of parts and welded longitudinal pipes of the main gas and oil pipelines; parts and piping in shipbuilding.

Standards

Name Code Standards
Blanks. Of the workpiece. Slabs В31 TU 14-1-3298-81, TU 14-1-4928-90
Sheets and strips В33 TU 14-1-4603-89, TU 14-1-5386-99, TU 5.961-11589-95
Steel pipes and fittings to them В62 TU 14-3-1698-2000, TU 14-158-153-05, TU 14-158-146-2004

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu N Al Nb Ce
TU 14-1-4928-90 0.08-0.11 ≤0.012 ≤0.015 1.15-1.65 ≤0.3 ≤0.4 0.65-1.05 Rest ≤0.3 ≤0.025 0.02-0.05 0.05 -
TU 14-158-146-2004 0.08-0.12 ≤0.012 ≤0.02 0.9-1.2 - 0.2-0.4 - Rest - ≤0.1 - 0.02-0.04 -
TU 14-3-1698-2000 0.08-0.12 ≤0.01 ≤0.02 0.9-1.2 - 0.2-0.4 0.15-0.3 Rest - - 0.02-0.06 0.02-0.04 ≤0.04
TU 14-1-5386-99 0.08-0.12 ≤0.01 ≤0.02 0.9-1.2 - 0.2-0.4 0.15-0.3 Rest - - 0.02-0.06 0.02-0.04 -
Fe is the basis.
According to TU 14-158-146-2004, the chemical composition is given for 10GNB-PL grade steel for a ladle sample for the 1st level of pipe quality. For pipes of the 2nd level of quality in the ladle sample, the mass fraction of sulfur is ≤ 0.010%, phosphorus ≤ 0.015%.
According to TU 14-1-4928-90 the chemical composition is given for steel grade 10GNB-Sh electroslag remelting. The total content of sulfur and phosphorus in the steel should not exceed 0.0250%. The content of niobium is calculated. In steel 10NNB-Sh, niobium can be replaced by titanium. The residual titanium and vanadium content should not exceed 0.050% of each. The content of residual lead, tin, antimony, zinc, arsenic and bismuth in tali is not more than 0.050% of each and can not be determined by chemical analysis, but is guaranteed by the supplier. As agreed by the parties, the content of impurities can be reduced. Permissible deviations in the chemical composition of steel - in accordance with GOST 19281, and in aluminum ± 0.010%.

Mechanical properties

Section, mm sT|s0,2, MPa σU, MPa d5, % KCU, kJ/m2
Longitudinal electric-welded pipes in the state of delivery on the other 14-3-1698-2000
360-460 510-630 ≥20 -
The strip 530-1020; 1220 mm in the delivery state on the other 14-1-5386-99 (KCU-60 °C)
430-530 510-610 ≥22 ≥590

Description mechanical marks

Name Description
sT|s0,2 Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σU Limit short-term strength
d5 Elongation after rupture
KCU Toughness

Technological properties

Name The value
Particularities of production of goods Smelting, casting, rolling, consumable electrode, electroslag remelting and thermal treatment of sheet bars on the other 14-1-4928-90 produce according to the technological instructions of the supplier, consistent with CRISM "Prometey". The sheet ingots are supplied in heat treated condition.