01H25M2T-VI (CHS78-VI)

Steel is smelted in vacuum induction furnaces. It is possible to use the vacuum decarburization method in the ladle.

It is used for the manufacture of welded heat exchange chemical and petrochemical equipment, operating at temperatures from 20 to 300 ° C and pressures up to 16 atm, in production environments of caustic soda, organochlorine products, with high content of chlorine ions, in the oil refining and pulp and paper industries.

Classification

Country	Section	Category
Country	Section	Category
CIS, Russia, Ukraine	Corrosion-resistant alloys and steels	Corrosion-resistant heat-resistant steel

Chemical composition

Standard	Fe, %	Si, %	Mn, %	Cr, %	Ti, %	Cu, %	Ni, %	P, %	C, %	S, %	Mo, %	N, %
Standard	Fe, %	Si, %	Mn, %	Cr, %	Ti, %	Cu, %	Ni, %	P, %	C, %	S, %	Mo, %	N, %
TU 14-1-3547-83	69.35–74.05	< 0.5	< 0.7	24–26	0.15–0.35	< 0.15	< 0.4	< 0.015	< 0.01	< 0.015	1.8–2.5	< 0.01

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Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{0.2}$ , $MPa$	d5, %	Treatment
Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{0.2}$ , $MPa$	d5, %	Treatment
Trumpet	TU 14-1-3547-83				> 400	> 225	> 25	Seamless pipes in the state of delivery after quenching according to TU 14-3-1275-83 (Dн = 25-75 mm. Wall 2-3 mm)

Standards

Standard	Description
Standard	Description
TU 14-1-3547-83	TU 14-1-3547-83

Description of chemical elements

Element	Units of measurement	Description
Element	Units of measurement	Description
Fe	%	Iron
Si	%	Silicon
Mn	%	Manganese
Cr	%	Chrome
Ti	%	Titan
Cu	%	Copper
Ni	%	Nickel
P	%	Phosphorus
C	%	Carbon
S	%	Sulfur
Mo	%	Molybdenum
N	%	Nitrogen

Description of mechanical properties

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
d5	%	Elongation at break
$\sigma_{0.2}$	$MPa$	Tensile stress required to produce a total elongation of 0.2%
$\sigma _{U}$	$MPa$	Ultimate tensile strength