20YUCHA (20YUCH)

for the production of seamless hot gas pipes increased corrosion resistance and cold resistance; for the manufacture of welded vessels gas and petrochemical industries;

Classification

Country	Section	Category
Country	Section	Category
CIS, Russia, Ukraine	Structural steel	Alloyed structural steel

Chemical composition

Standard	Fe, %	Si, %	Mn, %	Cr, %	Cu, %	Ni, %	V, %	Al, %	Ce, %	P, %	C, %	S, %	CED, %
Standard	Fe, %	Si, %	Mn, %	Cr, %	Cu, %	Ni, %	V, %	Al, %	Ce, %	P, %	C, %	S, %	CED, %
TU 14-162-14 - 96	97.45–99.13	0.17–0.37	0.5–0.65	< 0.25	< 0.25	< 0.25	< 0.05	0.03–0.05	< 0.05	< 0.015	0.17–0.22	< 0.015	< 0.38

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Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{Y}$ , $MPa$	d5, %	Treatment
Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{Y}$ , $MPa$	d5, %	Treatment
Pipes are hot deformed.	TU 14-162-14 - 96				502–627	338–470	25

Analogues

Germany	USA
Germany	USA
L 360 MB	5L Gr X52

Standards

Standard	Description
Standard	Description
TU 14-162-14 - 96

Description of chemical elements

Element	Units of measurement	Description
Element	Units of measurement	Description
CED	%	CED = C + Mn / 6 + (Cr + Mo + V) / 5 + (Ni + Cu) / 15
Fe	%	Iron
Si	%	Silicon
Mn	%	Manganese
Cr	%	Chrome
Cu	%	Copper
Ni	%	Nickel
V	%	Vanadium
Al	%	Aluminium
Ce	%	Cerium
P	%	Phosphorus
C	%	Carbon
S	%	Sulfur

Description of mechanical properties

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
d5	%	Elongation at break
$\sigma_{Y}$	$MPa$	Yield strength
$\sigma _{U}$	$MPa$	Ultimate tensile strength