Steel 08Х18Н5Г11БАФ (NN-3БФ)

Designation

Name The value
Designation GOST Cyrillic 08Х18Н5Г11БАФ
Designation GOST Latin 08X18H5G11BAF
Transliteration 08H18N5G11BAF
By chemical elements 08Cr18Н5Mn11NbNV
Name The value
Designation GOST Cyrillic НН-3БФ
Designation GOST Latin HH-3BF
Transliteration NN-3BF
By chemical elements НН-3NbV

Description

08Х18Н5Г11БАФ steel is used: for the production of ingots, forgings and forged blanks used in the manufacture of parts in shipbuilding and ship repairs; hull structures of ships, vessels and goods marine equipment.

Note

Corrosion resistant, low alloyed steel high-strength austenitic.

Standards

Name Code Standards
Blanks. Of the workpiece. Slabs В31 TU 14-1-853-74

Chemical composition

Standard C S P Mn Cr Si Ni Fe N V
TU 14-1-853-74 ≤0.08 ≤0.03 ≤0.045 10-12.5 18-19.5 ≤0.8 4.5-5.5 Rest 0.48-0.55 0.9-1.2
Fe is the basis.
According to TU 14-1-853-74, the total content of Nb + Ta = 0.20-0.40%. Deviations from the content of elements according to the chemical composition of steel are allowed: 08Х18Н5Г11 БАФ (НН-3БФ): carbon +0.010%, manganese + 0.50%, nickel + 0.50%, chromium + 0.50%, vanadium +0 , 10%, niobium +0.10%, nitrogen +0.030%, phosphorus +0.0050%, silicon + 0.20%. The residual content of elements in the chemical composition of the steel should not exceed: copper, cobalt, tungsten and molybdenum 0.30% of each element.