Steel 90ХФ (9Х1Ф; 9KHF)

Designation

Name	The value
Designation GOST Cyrillic	90ХФ
Designation GOST Latin	90XF
Transliteration	90HF
By chemical elements	90CrV

Name	The value
Designation GOST Cyrillic	9Х1Ф
Designation GOST Latin	9X1F
Transliteration	9H1F
By chemical elements	9Cr1V

Name	The value
Designation GOST Cyrillic	9ХФ
Designation GOST Latin	9XF
Transliteration	9HF
By chemical elements	9CrV

Description

90ХФ steel is used: for the manufacture of frame, band, circular saws, knives for cold metal cutting; trimming dies and punches cold cutting metal burrs; center punches; work and backup rolls for cold rolling of metal; rail and structural steel work rolls, heavy section and wire cogging and section rolling mills for hot rolling the metal is subjected to intense wear and tear and operating under conditions of minimal or moderate impact; work and backup rolls and the backup rolls bandages composite sheet, cogging and section rolling mills for hot and cold rolling of metal.

Standards

Name	Code	Standards
Bars and shapes	В22	GOST 1133-71, GOST 2590-2006, GOST 2591-2006
Tape	В34	GOST 2283-79, TU 14-133-201-99, TU 14-4-303-87
Sheets and strips	В33	GOST 4405-75, TU 14-1-665-73, TU 14-1-717-73, TU 14-1-795-73, TU 14-1-3401-82, TU 14-131-971-2001
Bars and shapes	В32	GOST 5950-2000, GOST 7417-75, GOST 8559-75, GOST 8560-78, GOST 14955-77, TU 14-19-73-89, TU 14-11-245-88, TU 14-1-1271-75
Machines and equipment for metallurgical and foundry industry	Г44	OST 24.013.20-90
Blanks. Of the workpiece. Slabs	В31	OST 24.952.01-89, TU 14-132-171-88
Processing of metals by pressure. Forgings	В03	TU 108-11-905-87, TU 4121-002-33902054-2004

Chemical composition

Standard	C	S	P	Mn	Cr	Si	Ni	Fe	Cu	V	Ti	Mo	W
OST 24.013.20-90	0.85-0.95	≤0.03	≤0.03	0.2-0.7	1.4-1.7	0.2-0.5	≤0.5	Rest	≤0.25	0.1-0.25	-	-	-
GOST 5950-2000	0.8-0.9	≤0.03	≤0.03	0.3-0.6	0.4-0.7	0.1-0.4	≤0.4	Rest	≤0.3	0.15-0.3	≤0.03	≤0.2	≤0.2

Fe is the basis.
According to OST 24.013.20-90 the chemical composition is given for steel 90Х1Ф.
According to GOST 5950-2000 the chemical composition is given for 9ХФ steel.

Mechanical properties

Section, mm	s_T\|s_0,2, MPa	σ_U, MPa	d₅, %	y, %	KCU, kJ/m²	HRC
Barrel support roll diameter 1500 mm (indicate the place and direction of cutting out of samples)
-	370-380	≥860	9-14	10-19	≥100	-
Samples of forgings. Normalizing at 870 °C to + Vacation at 650 °C
-	≥670	≥990	≥19	≥55	≥450	31
Barrel support roll diameter 1500 mm (indicate the place and direction of cutting out of samples)
-	320-330	800-810	≥18	25-30	150-180	-
Samples of forgings. Normalizing at 870 °C to + Vacation at 650 °C
-	≥325	≥390	≥31	≥81	≥810	-
Barrel support roll diameter 1500 mm (indicate the place and direction of cutting out of samples)
-	305-320	770-780	15-18	13-22	140-190	-
Samples of forgings. Normalizing at 870 °C to + Vacation at 650 °C
-	≥265	≥320	≥32	≥72	≥720	-
Barrel support roll diameter 1500 mm (indicate the place and direction of cutting out of samples)
-	340-350	≥810	13-14	19-21	100-140	-
-	470-490	≥920	≥14	12-20	≥100	-
-	405-445	860-870	17-18	30-33	≥150	-
Cold-rolled steel strip otoshiana ordinary quality GOST 2283-79 on delivery
0.1-4	-	≤930	-	-	-	-
The neck of the bottom side of the backing roller (specify the place and the direction of cutting out of samples)
-	≥455	≥880	≥5	≥5	≥30	-
-	≥485	≥950	≥16	≥24	≥140	-
-	≥490	≥930	≥6	≥7	≥130	-
-	≥490	≥940	≥16	≥31	≥200	-
The neck is a lucrative side backing roller with a diameter of 450 mm (indicate the place and direction of cutting out of samples)
-	500	940-950	6-7	7-8	100-120	-
-	490-510	≥960	9-13	≥11	100-150	-
-	500-540	970-980	7-9	7-10	120-140	-
-	500-510	≥980	≥14	23-24	90-150	-
-	465-485	900-920	4-5	≥5	80-120	-
-	480-520	930-970	≥12	18-20	120-160	-

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
y	The relative narrowing
KCU	Toughness
HRC	Rockwell hardness (indenter diamond spheroconical)

Physical characteristics

Temperature	l, W/(m · °C)	С, J/(kg · °C)
100	44	460
200	42	500
300	38	560
500	33	670
600	31	730
700	29	1320
800	27	720
900	27	640
1000	-	640
1200	-	650

A description of the physical symbols

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

Technological properties

Name	The value
Weldability	Does not apply to welded structures.
Склонность к отпускной хрупкости	Inclined.
The temperature of forging	Start - 1150 °C, the end - of 800 °C. the cross Sections up to 100 mm are cooled in air, 101-350 mm - in the pit.
Flock-sensitive sensitivity	Excessively sensitive.
Machinability	In the annealed condition with NV 187-196 and blower SB=680 MPa Kn TV.SPL.=0,9 Kn b.St.=0,6.