10ХН1М steel is used: for the manufacture of billets, hot rolled and cold drawn seamless pipes, steel plate, used for production of capacitive equipment for chemical, petrochemical and gas industry; tanks hraneniya liquid ammonia; the equipment and pipelines of nuclear power plants.

Standards

Name	Code	Standards
Blanks. Of the workpiece. Slabs	В31	TU 14-1-2152-77, TU 14-229-275-88
Sheets and strips	В33	TU 14-1-2587-78
Classification, nomenclature and General rules	В30	TU 14-143-252-76
Steel pipes and fittings to them	В62	TU 14-3-799-79

Chemical composition

Standard	C	S	P	Mn	Cr	Si	Ni	Fe	Cu	Mo
TU 14-1-2152-77	0.08-0.12	≤0.025	≤0.025	0.3-0.6	0.7-1	0.17-0.37	1.1-1.4	Rest	≤0.3	0.4-0.6
TU 14-229-275-88	0.08-0.12	≤0.035	≤0.03	0.3-0.6	0.7-1	0.17-0.37	1.1-1.4	Rest	≤0.3	0.4-0.6

Fe is the basis.
According to TU 14-1-2152-77 the chemical composition is presented for steel grade 10HN1M (VK-1A). Permissible deviations in chemical composition: nickel ± 0.10%, chromium +0.10%, molybdenum ± 0.050%. The admixture of titanium in the metal is allowed for its actual content up to 0.050%, which is displayed in the certificate. Residual content of elements in steel - in accordance with the standards of GOST 4543.
According to TU 14-229-275-88 the chemical composition is presented for steel grade 10ХН1М. The maximum deviations in the mass fraction of the elements are according to GOST 19282. No deviations from silicon are allowed.

Mechanical properties

Section, mm	s_T\|s_0,2, MPa	σ_U, MPa	d₅, %	KCU, kJ/m²
Tubular billet on the other 14-1-2152-77. Normalization with 910±10 °C + High vacation at 670-680 °C
15	≥343	≥490	≥20	≥785
15	≥275	≥441	≥20	-

Description mechanical marks

Name	Description
s_T\|s_0,2	Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σ_U	Limit short-term strength
d₅	Elongation after rupture
KCU	Toughness

Technological properties

Name	The value
Pressure treatment	The degree of deformation of hot-rolled billets according to TU 14-1-2152-77 shall be not less than 4, the degree of deformation produced on the presses must be at least 3.5.
Macrostructure and pollution	Macrostructure of steel hot-rolled billets according to TU 14-1-2152-77 controlled on a cross etched templeto should not have shrinkage, porosity, bubbles, cracks, sunsets, bundles, arachnids intergranular cracks, slag inclusions, inversions of the crust and placenow visible to the naked eye. Defects in the macrostructure for Central porosity, phase separation and to the square of the point inhomogeneity of billets to the size of the profile to 100 mm, inclusive, should not exceed 1-th score for each species over 100 mm 2-th points for each type. Pollution steel non-metallic inclusions shall not exceed the maximum score: - sulphides (C) - 3.0 points; - silicates (SC, SP) - 4.0 points; - oxides (OS, OT) - 4.0 points; - silicates, non-deformed (CH) - 3.0 points; - nitrides (NS, NT) - 2.5 points.

Steel 10ХН1М (VC-1A)

Designation

Description

Standards

Chemical composition

Mechanical properties

Description mechanical marks

Technological properties

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