Steel 03Х18Н12Т (000Х18Н12Т)

Designation

Name The value
Designation GOST Cyrillic 03Х18Н12Т
Designation GOST Latin 03X18H12T
Transliteration 03H18N12T
By chemical elements 03Cr18Н12Ti
Name The value
Designation GOST Cyrillic 000Х18Н12Т
Designation GOST Latin 000X18H12T
Transliteration 000H18N12T
By chemical elements 000Cr18Н12Ti

Description

03Х18Н12Т steel is used: for the manufacture of welded equipment operating in environments of increased aggressiveness (nitric acid, nitrate environments, acetic acid, alkaline solutions and salts); heat exchangers, muffles, pipes, fittings furnace parts

Note

Steel corrosion resistant austenitic class.

Standards

Name Code Standards
Welding and cutting metals. Soldering, riveting В05 TU 14-1-656-73

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu N V Mo W O
TU 14-1-656-73 ≤0.03 ≤0.02 ≤0.03 ≤0.4 17-19 ≤0.4 11.5-13 Rest ≤0.2 ≤0.03 ≤0.2 ≤0.3 ≤0.2 ≤0.06
Fe is the basis.
According to TU 14-1-656-73 the chemical composition is given for steel grade 03H18N12T. The titanium content should be within 5С ÷ 0,5%.

Mechanical properties

Section, mm σU, MPa d5, % y, %
Bars hot rolled and forged on the other 14-1-656-73. The longitudinal samples. Quenching in water from 1000-1050 °C
≥441 ≥50 ≥55

Description mechanical marks

Name Description
σU Limit short-term strength
d5 Elongation after rupture
y The relative narrowing

Technological properties

Name The value
Microstructure The content of ferritic phase in rods with a diameter or a side of a square of 80 mm or more must not exceed 0.5 points (1-2 %) Rods with a diameter or side of less than 80 mm and the strip is not subjected to a determination of the ferritic phase.