By visiting this site, you accept the use of cookies. More about our cookie policy.

Alloy Х20Н32Т (KHN32T; ЭП670)

Designation

Name The value
Designation GOST Cyrillic Х20Н32Т
Designation GOST Latin X20H32T
Transliteration H20N32T
The chemical elements Cr20Ni32Te
Name The value
Designation GOST Cyrillic ХН32Т
Designation GOST Latin XH32T
Transliteration HN32T
The chemical elements CrNi32Te
Name The value
Designation GOST Cyrillic ЭП670
Designation GOST Latin EP670
Transliteration EhP670
The chemical elements -

Description

Alloy Х20Н32Т used: for the production of HRP (5−20 mm); exhaust pipes; sheet metal parts of high temperature installations in petrochemical engineering for a long service at temperatures of +700−850 °C.

Note

High-temperature alloy, iron-Nickel basis.
The recommended maximum operating temperature for a very long time +850 °C. the Temperature of beginning of intensive scaling in air to +1000 °C.

Standards

Name Code Standards
Sectional and shaped rolling В22 GOST 1133-71, GOST 2590-2006
Sectional and shaped rolling В32 GOST 14955-77, TU 14-1-284-72, TU 14-11-245-88
Sheets and stripes В33 GOST 24982-81, TU 14-1-625-73
Metal forming. Forgings В03 GOST 25054-81
Classification, nomenclature and general norms В30 GOST 5632-72
Bulls. Blanks. Slabs В31 OST 3-1686-90, TU 14-1-2111-77
Thermal and thermochemical treatment of metals В04 STP 26.260.484-2004
Pipes steel and connecting parts to them В62 TU 14-3-489-76, TU 14-158-135-2003

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu Al Ti Mo
TU 14-1-625-73 ≤0.05 ≤0.02 ≤0.03 ≤0.7 19-22 ≤0.7 30-34 The rest ≤0.3 ≤0.5 0.25-0.6 -
GOST 5632-72 ≤0.05 ≤0.02 ≤0.03 ≤0.7 19-22 ≤0.7 30-34 The rest ≤0.3 ≤0.5 0.25-0.6 ≤0.3
Fe is the basis.

Mechanical characteristics

Section, mm sT|s0,2, MPa σB, MPa d5, % y, %
Steel cold-rolled sheet (0.8 to 3.9 mm) and HR (2.0 to 11.0 mm) in the delivery state according to GOST 24982-81. Quenching in water, under a water shower or air from 1100-1150 °C
≤3.9 ≥195 ≥470 ≥25 -
4-11 ≥175 ≥490 ≥30 -
Forgings. Annealing in air from 1100-1150 °C
≤100 ≥176 ≥470 ≥30 ≥35
Bars hot rolled and forged 20-180 mm on THAT 14-1-284-72. Quenching in water or air from 1100-1150 °C
≥177 ≥470 ≥40 ≥60
Bars hot rolled and forged at STP 26.260.484-2004. Quenching in water or air from 1100-1150 °C
≥180 ≥490 ≥30 ≥35
Heavy-gauge hot-rolled steel in the delivery state on the other 14-1-625-73. Quenching in water or air with 1080-1120 °C
5-20 ≥178 ≥494 ≥30 -
Cold-rolled tubes after austenization on delivery
- ≥470 ≥35 -

Description mechanical marks

Name Description
Section Section
sT|s0,2 Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σB Limit short-term strength
d5 Elongation after rupture
y The relative narrowing

Physical characteristics

Temperature Е, ГПа r, кг/м3 l, Вт/(м · °С) a, 10-6 1/°С
20 205 8160 159 -
100 - - 134 137
200 - - 151 156
300 - - 167 172
400 - - 18 18
500 - - 192 18
600 - - 205 184
700 - - 217 189
800 - - 234 19

A description of the physical symbols

Name Description
Е The normal elasticity modulus
r Density
l Coefficient of thermal conductivity
R UD. the resistivity

Technological properties

Name The value
Features of heat treatment Product details chemical engineering from KHN32T alloy should be quenched from 1100-1150 °C. Extract with a wall thickness of 15 mm - 30 min, more than 15 mm - 30 min + 1 min per 1 mm max thickness cooling in water or air.

Our consultant will save your time

+49(1516) 758 59 40
Telegram:
WhatsApp:

Subscription

Special offers and discounts. :)