Steel 06Х16Н15М2Г2ТФР (ЧС68)

Designation

Name	The value
Designation GOST Cyrillic	06Х16Н15М2Г2ТФР
Designation GOST Latin	06X16H15M2G2TFP
Transliteration	06H16N15M2G2TFR
By chemical elements	06Cr16Н15Mo2Mn2TiVB

Name	The value
Designation GOST Cyrillic	ЧС68
Designation GOST Latin	ChC68
Transliteration	ChS68
By chemical elements	ZrС68

Description

06Х16Н15М2Г2ТФР steel is used: for the production of round and profile wire; pipes and welded austenitic cold drawn pipes used in the manufacture of piping and equipment chemical and power engineering and nuclear power plants; fuel elements of nuclear power plants.

Standards

Name	Code	Standards
Blanks. Of the workpiece. Slabs	В31	TU 14-1-1213-75, TU 14-1-3733-84, TU 14-131-960-2001
Wire, steel, alloy	В73	TU 14-173-176-88, TU 14-131-1107-2012, TU 14-131-1114-2013
Steel pipes and fittings to them	В62	TU 14-3-1511-87

Chemical composition

Standard	C	S	P	Mn	Cr	Si	Ni	Fe	N	Al	V	B	Ti	Mo	Co
TU 14-1-1213-75	0.05-0.08	≤0.012	≤0.02	1.3-2	15.5-17	0.3-0.6	14-15.5	Rest	≤0.02	-	0.1-0.3	0.001-0.005	0.2-0.5	1.9-2.5	≤0.02
TU 14-1-3733-84	0.05-0.08	≤0.012	≤0.02	1.3-2	15.5-17	0.3-0.6	14-15.5	Rest	≤0.02	≤0.05	0.1-0.3	0.001-0.005	0.2-0.5	1.9-2.5	≤0.02
TU 14-3-1511-87	0.05-0.08	≤0.012	≤0.02	1.3-2	15.5-17	0.3-0.6	14-15.5	Rest	-	-	0.1-0.3	0.002-0.005	0.2-0.5	1.9-2.5	-
TU 14-131-960-2001	0.05-0.08	≤0.012	≤0.02	1.3-2	15.5-17	0.3-0.6	14-15.5	Rest	≤0.02	≤0.05	0.1-0.3	0.002-0.005	0.2-0.5	1.9-2.5	≤0.02
TU 14-131-1114-2013	0.06-0.08	≤0.012	≤0.02	1.3-2	15.5-17	0.3-0.6	14-15.5	Rest	≤0.02	≤0.05	0.1-0.3	0.004-0.006	0.25-0.45	1.9-2.5	≤0.02

Fe is the basis.
According to TU 14-1-3733-84 and TU 14-3-1511-87, the chemical composition is given for steel grade 06H16N15M2G2TFR-ID (CS68-ID). The mass fractions of cerium, vanadium, cobalt and boron are calculated.
In the finished products, according to TU 14-1-3733-84, deviation is allowed for the mass fraction of manganese minus 0.30%. The ratio of the mass fraction of titanium to the mass fraction of carbon should be at least 4.
According to TU 14-1-1213-75, the chemical composition is given for steel grade 06H16N15M2G2TFR-ID (CS68-ID). In the finished product, deviation is allowed for the mass fraction of manganese minus 0.30%, aluminum plus 0.050%. The ratio of the mass fraction of titanium to the mass fraction of carbon should be at least 4. At the request of the customer, the steel of CS68-ID is melted with a mass fraction of phosphorus 0.015-0.030%.
According to TU 14-131-1107-2012, TU 14-131-1114-2013 the chemical composition is given for steel grade 06H16N15M2G2TFR-ID (CS68-ID). In the finished product is allowed a deviation in chemical composition: for carbon -0.0050%, for manganese -0.30%, for aluminum +0.050%, for silicon +0.050%, for titanium +0.050%. The ratio of the mass fraction of titanium to the mass fraction of carbon should be not less than 4.0. The calculated content of vanadium should be 0.15%. At the customer's request, the steel grade 06H16N15M2G2TFR-ID (CS68-ID) is melted with a mass fraction of phosphorus 0.015-0.030%. At the request of the customer, specified in the customer, it is allowed to supply steel with a mass fraction of silicon 0.50-0.80%.
According to TU 14-131-960-2001, the chemical composition is given for steel grade 06H16N15M2G2TFR-ID (CS68-ID). In the finished product is allowed a deviation in chemical composition: for manganese -0.30%, for aluminum +0.050%, for silicon +0.050%. The ratio of the mass fraction of titanium to the mass fraction of carbon should be not less than 4.0. At the customer's request, the steel grade 06H16N15M2G2TFR-ID (CS68-ID) is melted with a mass fraction of phosphorus 0.015-0.030%.

Mechanical properties

Section, mm	s_T\|s_0,2, MPa	σ_U, MPa	d₅, %	d
Wire nagarebana with the calculated degree of deformation of 20-25% as supplied on the other 14-131-1107-2012. In the graph, the elongation is specified, the value δ100
0.95; 1.05	-	690-980	-	≥5
The billet according to TU 14-1-3733-84, THE 14-131-960-2001. The longitudinal samples. Annealing in air or in water 1050-1100 °C
20-25	≥196	≥490	≥40	-
Oval wire cold drawn nagarebana with the calculated degree of deformation of 20±5% as supplied on the other 14-131-1114-2013. In the graph, the elongation is specified, the value δ100
0.6х1.3	-	690-980	-	≥2
The billet according to TU 14-1-3733-84, THE 14-131-960-2001. The longitudinal samples. Annealing in air or in water 1050-1100 °C
20-25	≥147	≥350	≥30	-
20-25	≥118	≥310	≥30	-

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
d	Elongation after rupture

Technological properties

Name	The value
Macrostructure and pollution	In the macrostructure of the workpiece on the other 14-1-3733-84 as supplied must not be cracked, subcortical bubbles, curled up crusts, traces of shrinkage porosity, inclusions, delaminations visible to the naked eye. Under the control of the workpiece on the transverse microtemplate valid: Central porosity is not more than 1.0 points; a point heterogeneity - not more than 1.0 points segregated square - not more than 1.0 points. Layer-by-layer crystallization and the square of the increased travelmasti are not rejection symptom. Contamination of the steel wire on the other 14-131-1107-2012 non-metallic inclusions shall not exceed the standards: the sulphide - score of 1.0; oxides of point - score of 2.0; oxides of stroke - score of 2.0; silicates fragile - score of 2.0; silicates plastic - score of 1.0; the non-deformed silicates - score of 1.0; the nitrides and carbonitrides - score of 3.0. Allowed content of nitrides and carbonitrides to 3.5 points.
Microstructure	In the metal tube blank and the content of nitride and carbonitride phases should not exceed a score of 3.0 GOST 1770. The content of nitride and carbonitride phases to 3.5 points but a rejection symptom.
Red hardness	Steel resistant to intergranular corrosion.