3H2V8F

For the tool of hot pressing of copper alloys, injection molds.

heavy duty pressing tools (small insert final stamping creek, dies and punches for pressing and so. d.) the hot deformation of alloy structural steels and superalloys, mold injection molding copper alloys.

Classification

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

Chemical composition

Standard	Fe, %	Si, %	Mn, %	Cr, %	Cu, %	Ni, %	V, %	P, %	C, %	S, %	Mo, %	W, %
Standard	Fe, %	Si, %	Mn, %	Cr, %	Cu, %	Ni, %	V, %	P, %	C, %	S, %	Mo, %	W, %
GOST 5950-73	86.16–89.5	0.15–0.4	0.15–0.4	2.2–2.7	< 0.03	< 0.35	0.2–0.5	< 0.03	0.3–0.4	< 0.03	< 0.5	7.5–8.5

Information on suppliers

Wish to advertise here?

Physical characteristics

Temperature, °C	$E\cdot 10^{9}$ , $MPa$	$\varkappa$ , $\frac{W}{m\cdot K}$	$R\cdot 10^{-6}$ , $\Omega\cdot m$
Temperature, °C	$E\cdot 10^{9}$ , $MPa$	$\varkappa$ , $\frac{W}{m\cdot K}$	$R\cdot 10^{-6}$ , $\Omega\cdot m$
20	224
100	218	25	0.25
200	211	27	0.2
300	204	29	0.17
400	196	40	0.14
500	187	46	0.12
600	177	50

Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{P}$ , $MPa$	$\epsilon_L$ , %	$\psi$ , %	$KCU\cdot 10^{3}$ , $\frac{J}{m^2}$	Treatment
Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{P}$ , $MPa$	$\epsilon_L$ , %	$\psi$ , %	$KCU\cdot 10^{3}$ , $\frac{J}{m^2}$	Treatment
Metal rolling					1530	1390	12	36	200	Hardening 1130 ° C, oil, leave 650 ° C, 2 h

Brinell hardness number

Rolling	Standard	Classifiers	Value, HBW
Rolling	Standard	Classifiers	Value, HBW
Alloy		annealing	241

Technological Properties

Weldability	Flake Susceptibility	Propensity to temper brittleness
Weldability	Flake Susceptibility	Propensity to temper brittleness
Not applicable for welded structures	sensitive	inclined

Critical point temperatures

Ac₁, K	Ac₃(Ac_m), K	Ar₃(Arc_m), K	Ar₁, K	Mn, K
Ac₁, K	Ac₃(Ac_m), K	Ar₃(Arc_m), K	Ar₁, K	Mn, K
800	850	750	690	380

Analogues

USA	Germany	Japan	France	United Kingdom	European Union	Italy	Spain	China	Bulgaria	Poland	Romania	Czech Republic	Austria
USA	Germany	Japan	France	United Kingdom	European Union	Italy	Spain	China	Bulgaria	Poland	Romania	Czech Republic	Austria
H21	1.2581 (X30WCrV9-3)	SKD5	X30WCrV9	2581	1.2581	X30WCrV9-3KU	F.5323	3Cr2W8V	3Ch2B8F	WWW	30VCrW85	19721	BOHLERW100

Standards

Standard	Description
Standard	Description
GOST 5950-73

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
Mo	%	Molybdenum
W	%	Tungsten

Description of physical characteristics

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
$E\cdot 10^{9}$	$MPa$	Elastic modulus
$\varkappa$	$\frac{W}{m\cdot K}$	Coefficient of thermal conductivity (the heat capacity of the material)
$R\cdot 10^{-6}$	$\Omega\cdot m$	Electrical resistivity

Description of mechanical properties

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
$\sigma _{U}$	$MPa$	Ultimate tensile strength
$\sigma_{P}$	$MPa$	Proportionality limit
$\epsilon_L$	%	Elongation at break (longitudinal)
$\psi$	%	Reduction in cross section on fracture
$KCU\cdot 10^{3}$	$\frac{J}{m^2}$	Impact toughness

Designation of types of weldability

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
no limits		Welding is performed without heating and without subsequent heat treatment
Boundedly welded		Welding is possible with heating up to 100–120 °C and subsequent heat treatment
Difficult to weld		For obtaining quality welded joints, additional operations are required: heating up to 200–300 °C for welding, heat treatment after welding — annealing
Not applicable for welded structures

Description of temperatures of critical points

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
Ac₁	K
Ac₃(Ac_m)	K
Ar₃(Arc_m)	K
Ar₁	K
Mn	K