Steel 10ГН2МФА

Designation

Name The value
Designation GOST Cyrillic 10ГН2МФА
Designation GOST Latin 10GH2MFA
Transliteration 10GN2MFA
By chemical elements 10MnН2MoV

Description

10ГН2МФА steel is used: for the production of welding wire and the manufacture of steam generators, pressure compensators, manifolds and other equipment of nuclear power plants.

Note

Forgings housings and flanges collectors heat transfer fluids are produced from steel grades 10ГН2МФА-VD and 10ГН2МФА-sh.

Standards

Name Code Standards
Welding and cutting metals. Soldering, riveting В05 RTD 2730.300.02-91, OST 108.300.02-86, TU 14-1-2860-79
Processing of metals by pressure. Forgings В03 TU 0893-014-00212179-2004
Sheets and strips В33 TU 108.11.906-87
Blanks. Of the workpiece. Slabs В31 TU 108.766-86

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu V Mo
TU 0893-014-00212179-2004 0.08-0.12 ≤0.02 ≤0.02 0.8-1.1 ≤0.3 0.17-0.37 1.8-2.3 Rest ≤0.3 0.03-0.07 0.4-0.7
Fe is the basis.
In the ladle sample, the aluminum content should be 0.005 - 0.035%, the titanium content - not more than 0.015%.
The total content of sulfur and phosphorus in the steel treated with OCPB should not be more than 0.020%.
In the forgings of hulls and flanges of collectors of heat carriers from steel grade 10ГН2МФА-ВД and 10ГН2МФА-Ш content S≤0,005%, content Р≤0,008%.

Mechanical properties

sT|s0,2, MPa σU, MPa d5, % y, % KCU, kJ/m2
The quenching and tempering, or normalizing with the release
345-590 540-700 16-18 55-60 390
- - - - 240-390
295 490 14-15 50-55 -

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
y The relative narrowing
KCU Toughness