Steel 16ГФБ

Designation

Name The value
Designation GOST Cyrillic 16ГФБ
Designation GOST Latin 16GFB
Transliteration 16GFB
By chemical elements 16MnVNb

Description

16ГФБ steel is used: for the manufacture of billets, cold-resistant pipes and pipes having improved resistance against hydrogen sulfide corrosion of pipelines and construction of gas fields.

Note

Serovodoroda low alloy steel.

Standards

Name Code Standards
Bars and shapes В22 TU 14-1-3345-2006

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu Al V Ti Nb
TU 14-1-3345-2006 0.13-0.18 ≤0.012 ≤0.02 0.8-1 ≤0.4 0.17-0.37 ≤0.3 Rest ≤0.4 0.02-0.06 0.04-0.08 ≥0.015 0.01-0.05
Fe is the basis.
According to TU 14-1-3345-2006, the pipe blank allows for a deviation in carbon - plus 0.01%, for aluminum - plus 0.02%. In order to modify the steel and globularization of sulfide inclusions, silicocalcium and (or) alumobaric minerals of at least 1 kg / ton (1: 1 ratio) are introduced into the steel. The mass fraction of calcium and (or) barium in steel is not a delivery indicator and is not controlled. The addition of titanium in the amount of at least 0.015% is introduced into the steel.

Mechanical properties

Section, mm sT|s0,2, MPa σU, MPa d5, % KCU, kJ/m2 HB, MPa
The tubular billet in the delivery condition on the other 14-1-3345-2006. Normalization at 910-930 °C (aging of 0.5 h)
≥390 ≥490 ≥22 ≥490 ≤205

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
HB Brinell hardness number