Steel 14KH18N4G4L (10Х18Н4Г4Л)

Designation

Name The value
Designation GOST Cyrillic 14Х18Н4Г4Л
Designation GOST Latin 14X18H4G4L
Transliteration 14H18N4G4L
By chemical elements 14Cr18Н4Mn4
Name The value
Designation GOST Cyrillic 10Х18Н4Г4Л
Designation GOST Latin 10X18H4G4L
Transliteration 10H18N4G4L
By chemical elements 10Cr18Н4Mn4

Description

14KH18N4G4L steel is used: for the manufacture of castings of valves for the chemical industry, collectors, exhaust systems, parts, furnace fittings and various other parts operating at temperatures up to +400 °C.

Note

Stainless steel austenitic-martensitic class. The steel is greater than steel of the brand 07Х18Н9Л tendency to intergranular corrosion.

Standards

Name Code Standards
Castings with special properties (iron and steel) В83 GOST 2176-77
Steel castings В82 GOST 977-88

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu
GOST 977-88 ≤0.14 ≤0.03 ≤0.035 4-5 16-20 0.2-1 4-5 Rest -
GOST 2176-77 ≤0.14 ≤0.03 ≤0.035 4-5 16-20 0.2-1 4-5 Rest ≤0.3
Fe is the basis.
According to GOST 2176-77 the chemical composition is given for steel grade 14H18N4G4L. Deviations from the norms of chemical composition are allowed: for carbon ± 0.020%; for silicon ± 0.10%; on manganese, copper, chromium and nickel ± 0.10% each; by titanium and tungsten ± 0.050% each; by vanadium, molybdenum and niobium ± 0.020% each.

Mechanical properties

Section, mm sT|s0,2, MPa σU, MPa d5, % y, % KCU, kJ/m2
Quenching in water with 1020-1070 °C, cooling in water
100 ≥245 ≥441 ≥25 ≥35 ≥981

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