9HF (90HF)

For frame, band, circular planers, cold work stamps, knives, edging

dies, punches, center pins.

for the frame, tape, circular saws planer; stamps for cold work; knives for cold metal cutting, cutting dies and puasonov in cold cutting burr; center punches

Classification

Country	Section	Category
Country	Section	Category
CIS, Russia, Ukraine	Tool steel	Alloy tool steel

Chemical composition

Standard	Fe, %	Si, %	Mn, %	Cr, %	Cu, %	Ni, %	V, %	P, %	C, %	S, %
Standard	Fe, %	Si, %	Mn, %	Cr, %	Cu, %	Ni, %	V, %	P, %	C, %	S, %
GOST 5950-2000	96.34–98.25	0.1–0.4	0.3–0.6	0.4–0.7	< 0.3	< 0.4	0.15–0.3	< 0.03	0.8–0.9	< 0.03

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Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	Treatment
Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	Treatment
Tape		0.1–4		annealing	930

Brinell hardness number

Rolling	Standard	Classifiers	Value, HBW
Rolling	Standard	Classifiers	Value, HBW
Alloy	GOST 5950-73	heat-treated	241

Critical point temperatures

Ac₁, K	Mn, K
Ac₁, K	Mn, K
700	215

Analogues

USA	Germany	Japan	Bulgaria	Poland	Czech Republic	Austria
USA	Germany	Japan	Bulgaria	Poland	Czech Republic	Austria
L2	1.2056 (90Cr3)	SKC11	8ChF	NCV1	19419	BOHLERB400
	1.1056
	80CrV2

Standards

Standard	Description
Standard	Description
GOST 5950-2000	GOST

Description of chemical elements

Element	Units of measurement	Description
Element	Units of measurement	Description
Fe	%	Iron
Si	%	Silicon
Mn	%	Manganese
Cr	%	Chrome
Cu	%	Copper
Ni	%	Nickel
V	%	Vanadium
P	%	Phosphorus
C	%	Carbon
S	%	Sulfur

Description of mechanical properties

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
$\sigma _{U}$	$MPa$	Ultimate tensile strength

Description of temperatures of critical points

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
Ac₁	K
Mn	K