Steel 12ХГДАФ

Designation

Name The value
Designation GOST Cyrillic 12ХГДАФ
Designation GOST Latin 12XGDAF
Transliteration 12HGDAF
By chemical elements 12CrMnCuNV

Description

12ХГДАФ steel is used: for the manufacture of welded offshore steel structures.

Standards

Name Code Standards
Sheets and strips В33 TU 14-1-4329-87, TU 14-1-4685-89, TU 14-1-5241-93

Chemical composition

Standard C S P Mn Cr Si Fe Cu N V
TU 14-1-5241-93 0.09-0.15 ≤0.03 ≤0.03 0.6-1 0.8-1.1 0.17-0.37 Rest 0.25-0.5 0.02-0.03 0.07-0.12
Fe is the basis.

Mechanical properties

Section, mm sT|s0,2, MPa σU, MPa d5, %
Rolled plates as supplied by TU 14-1-5241-93, THE 14-1-4685-89 (samples transverse)
30-50 ≥325 ≥470 ≥20
8-30 ≥345 ≥490 ≥20

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

Technological properties

Name The value
Weldability Without restrictions.