01H18N40M5GB-ID (EP753-ID)

The technological characteristic is corrosion resistance: the forged billet is tested for intergranular corrosion by a regulated method.

Forged pipes and pipe fittings for petrochemistry, for special equipment of nuclear power plants and for the needs of instrument-making are made of an alloy.

Classification

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

Chemical composition

Standard	Fe, %	Si, %	Mn, %	Ni, %	V, %	Nb, %	Mo, %	N, %
Standard	Fe, %	Si, %	Mn, %	Ni, %	V, %	Nb, %	Mo, %	N, %
TU 14-1-2097-77	51.085–55.2	< 0.1	1–2	39–41	0.05–0.2	0.25–0.6	4.5–5	< 0.015

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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
					> 539		> 45

Mechanical properties at 1050 °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
						196

Standards

Standard	Description
Standard	Description
TU 14-1-2097-77	TU 14-1-2097-77

Description of chemical elements

Element	Units of measurement	Description
Element	Units of measurement	Description
Fe	%	Iron
Si	%	Silicon
Mn	%	Manganese
Ni	%	Nickel
V	%	Vanadium
Nb	%	Niobium
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