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
CIS, Russia, Ukraine Tool steel Die tool steel

Chemical composition

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

Physical characteristics

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
Metal rolling 1530 1390 12 36 200 Hardening 1130 ° C, oil, leave 650 ° C, 2 h

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Alloy annealing 241

Technological Properties

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

Critical point temperatures

Ac1, K Ac3(Acm), K Ar3(Arcm), 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
H21 1.2581 (X30WCrV9-3) SKD5 X30WCrV9 2581 1.2581 X30WCrV9-3KU F.5323 3Cr2W8V 3Ch2B8F WWW 30VCrW85 19721 BOHLERW100

Standards

Standard Description
GOST 5950-73

Description of chemical elements

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
$$E\cdot 10^{9}$$ $$MPa$$ 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
$$\sigma _{U}$$ $$MPa$$ 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
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
Ac1 K
Ac3(Acm) K
Ar3(Arcm) K
Ar1 K
Mn K