Steel 07Х13АГ20 (ЧС46)

Designation

Name The value
Designation GOST Cyrillic 07Х13АГ20
Designation GOST Latin 07X13AG20
Transliteration 07H13AG20
By chemical elements 07Cr13NMn20
Name The value
Designation GOST Cyrillic ЧС46
Designation GOST Latin ChC46
Transliteration ChS46
By chemical elements ZrС46

Description

07Х13АГ20 steel is used: for the manufacture of rolled products, tubular billets and pipes designed for production of equipment of chemical industry, working in a slightly aggressive media.

Note

Steel is non-magnetic, Nickel-free austenitic.
Steel heat-resistant and heat-resistant to +600 °C.

Standards

Name Code Standards
Thermal and thermochemical treatment of metals В04 STP 26.260.484-2004
Blanks. Of the workpiece. Slabs В31 TU 14-1-3159-81, TU 14-1-3248-81
Bars and shapes В32 TU 14-1-3243-81
Sheets and strips В33 TU 14-1-3342-82, TU14-1-2640
Steel pipes and fittings to them В62 TU 14-3-1322-85, TU 14-3-1323-85

Chemical composition

Standard C S P Mn Cr Si Ni Fe N B Ca Ce Mg
TU 14-1-3159-81 ≤0.07 ≤0.025 ≤0.035 19-22 12-14 ≤0.6 ≤1 Rest 0.08-0.18 ≤0.003 ≤0.1 ≤0.1 ≤0.01
Fe is the basis.
According to TU 14-1-3159-81, the mass fractions of nitrogen, boron, magnesium, cerium and calcium are calculated. Deviations are allowed: by mass fraction of nitrogen ± 0.020%, nickel + 0.30%, manganese ± 0.20%, chromium + 0.50%. Mass fraction of residual elements - according to GOST 5632.

Mechanical properties

Section, mm sT|s0,2, MPa σU, MPa d5, % KCU, kJ/m2
The billet according to TU 14-1-3159-81. The longitudinal samples. Quenching in water or air at 950-1000 °C
20-25 ≥343 ≥637 ≥40 ≥591
Bars hot rolled and forged at STP 26.260.484-2004. Quenching in water or air with 1030-1070 °C
≥350 ≥670 ≥40 -

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
KCU Toughness

Technological properties

Name The value
Macrostructure and pollution The macrostructure of the workpiece on the other 14-1-3159-81 (when checking for cross etched Templeton) should not be visible without using the magnifying devices podnasadochnogo looseness, cracks, foreign non-metallic microflute, cellular and subcortical bubbles, bundles. The defects allowed must not exceed: on a point inhomogeneity 2 points, according to the Central porosity - 2 points, exudation square - 2 points. Contamination of the metal blanks must not exceed 2 points - sulphides, oxides, stroke, non-deformable silicates, plastic silicates; 3 points - nitrides and carbonitrides.
Microstructure The contents of alpha phase in the billet on the other 14-1-3159-81 should not exceed 2.0 points.
Features of heat treatment Steel products for equipment of chemical industry termoobrabotannyj according to mode: heating to 1050±20 °C, the holding time at the heating for hardening to products with a wall thickness up to 10 mm - 30 min, over 10 mm - 20 min + 1 min per 1 mm max thickness cooling products with wall thickness up to 10 mm in the air, over 10 mm in water.