Steel 09Х16Н16МВ2БР (ЭП184; Х16Н16МВ2БР)

Designation

Name	The value
Name	The value
Designation GOST Cyrillic	09Х16Н16МВ2БР
Designation GOST Latin	09X16H16MB2BP
Transliteration	09H16N16MV2BR
By chemical elements	09Cr16Н16MoW2NbB

Name	The value
Name	The value
Designation GOST Cyrillic	ЭП184
Designation GOST Latin	EP184
Transliteration	EhP184
By chemical elements	-

Name	The value
Name	The value
Designation GOST Cyrillic	Х16Н16МВ2БР
Designation GOST Latin	X16H16MB2BP
Transliteration	H16N16MV2BR
By chemical elements	Cr16Н16MoW2NbB

Description

09Х16Н16МВ2БР steel is used: for proizvodstva pipes, superheaters, steam collectors and long time operation at temperatures up to +600−700 °C; tubes of thermal power plants with operating steam parameters up to 315 at. and temperatures up to 650 °C.

Note

The austenitic steel.

Standards

Name	Code	Standards
Name	Code	Standards
Blanks. Of the workpiece. Slabs	В31	TU 14-1-359-72
Steel pipes and fittings to them	В62	TU 14-3-207-81

Chemical composition

Standard	C	S	P	Mn	Cr	Si	Ni	Fe	Cu	B	Mo	Nb	W
Standard	C	S	P	Mn	Cr	Si	Ni	Fe	Cu	B	Mo	Nb	W
TU 14-1-359-72	0.06-0.11	≤0.015	≤0.02	≤0.6	15-17	≤0.8	15-17	Rest	-	≤0.005	0.4-0.9	0.6-1	2-3
TU 14-3-207-81	0.06-0.11	≤0.02	≤0.03	≤0.6	15-17	≤0.8	15-17	Rest	≤0.3	0.002-0.005	0.4-0.9	0.6-1	2-3

Fe is the basis.
According to TU 14-1-359-72, the chemical composition is presented for steel grade 09H16N16MV2BR-VD (EP184-VD). In the steel grade 09H16N16MV2BR (EP184), the sulfur content is not more than 0.020%, the phosphorus content is not more than 0.030%. In both grades, the residual copper content is allowed up to 0.150%. Deviations in the sulfur content of +0.0050% and phosphorus of +0.010% are allowed. The content of boron is calculated and chemical analysis is not determined. The presence of boron is determined by the steel manufacturer.

Mechanical properties

Section, mm	s_T\|s_0,2, MPa	σ_U, MPa	d₅, %	y, %	KCU, kJ/m²
Section, mm	s_T\|s_0,2, MPa	σ_U, MPa	d₅, %	y, %	KCU, kJ/m²
Tubular billet of steel 09Х16Н16МВ2БР-VD and 09Х16Н16МВ2БР on the other 14-1-359-72. Heating to 1120-1150 °C, cooling in water (longitudinal samples)
20-25	≥198	≥490	≥38	≥50	1170
Tubular billet on the other 14-3-207-81 (DH = 32-370 mm; wall thickness 6-45 mm). Austenization
	≥198	≥490	≥35	≥50	≥1170
Tubes in the delivery condition on the other 14-3-207-81
	≥240	≥530	≥38	≥50	≥1380

Description mechanical marks

Name	Description
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
y	The relative narrowing
KCU	Toughness

Physical characteristics

Temperature	r, kg/m³	l, W/(m · °C)	R, Mr. · m	a, 10^-6 1/°C
Temperature	r, kg/m³	l, W/(m · °C)	R, Mr. · m	a, 10^-6 1/°C
20	8120	1382	820	-
100	-	1507	870	171
200	-	1633	934	171
300	-	1717	980	176
400	-	1884	1031	179
500	-	2052	1071	182
600	-	2261	1111	185
700	-	247	-	188
800	-	-	-	191
900	-	-	-	192

A description of the physical symbols

Name	Description
Name	Description
Е	The normal elasticity modulus
r	Density
l	Coefficient of thermal conductivity
R	UD. the resistivity

Technological properties

Name	The value
Name	The value
Pressure treatment	Tubular billet on the other 14-1-359-72 must have the clan are less than 3.4 in terms of the sizes of average cross-section of ingot and billet.
Macrostructure and pollution	The macrostructure of the workpiece on the other 14-1-359-72 when checking for cross etched templeto should not have podnasadochnogo looseness, bubbles, cracks, inclusions, subcortical bubbles and crust under the devil. 11a and 11b GOST 10243 visible without using the magnifying devices. The presence of layer-by-layer crystallization and the bright contour in the macrostructure of metal and VDP is not a rejection symptom. The defects allowed must not exceed (for open smelting / non VDP) in points: - point heterogeneity - 2,0 / 1,0 - Central porosity - 2,0 / 1,0 - segregated square: 2,0 / 1,0. Layer-by-layer crystallization is not a rejection symptom. The metal workpiece is subjected to the control of nonmetallic inclusions. Norms of contamination of non-metallic inclusions for the SDT by the maximum score of no more than: - iron oxides and silicates - 2.0 points; - sulphides - 1.0 points; - nitrides and carbonitrides of niobium 3.5 points; - globules - 1.0 points. Standards for metal open method of smelting by the average score must not exceed: - iron oxides and silicates - 3,5 points - sulphides - 3.0 points, nitrides and carbonitrides of niobium (scale No. 8 Crniti) - 5.0 points; - globules - 3.0 points. Maximum score: - sulfides - 4.0 points; - oxides of 4.0 points. The metal workpiece is subjected to VDP control of nitrogen content, which should be no more than 0,0450 %.
Corrosion resistance	Tubular billet on the other 14-1-359-72 must withstand the test of intercrystalline corrosion.