H6VF (9H5F)
Steel does not apply to welded structures. not prone to temper brittleness. Temperature of critical points: Ac1 = 815, Ac3 (Acm) = 845, Ar3 (Arcm) = 775, Ar1 = 625, Mn = 150. Hardness after annealing (GOST 5950−2000): HB 10 -1 = 241 MPa. Substitutes: H12F1, H12M, 9H5 °F.
rezbokatany tools (rolls and dies), hand saw blades, razors, dies, punches, zubonakatniki and other tools for cold deformation, for wood-cutting tools.
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, % |
W, % |
|---|
| GOST 5950-2000 |
88.44–91.6 |
0.1–0.4 |
0.15–0.45 |
5.5–6.5 |
< 0.3 |
< 0.4 |
0.5–0.8 |
< 0.03 |
1.05–1.15 |
< 0.03 |
1.1–1.5 |
Information on suppliers
Mechanical properties at 20 °C
| Rolling |
Standard |
Size, mm |
Tension |
Classifiers |
$$\sigma _{U}$$, $$MPa$$ |
Treatment |
|---|
| Tape |
|
0.1–4 |
|
annealing |
880 |
|
Brinell hardness number
| Rolling |
Standard |
Classifiers |
Value, HBW |
| Alloy |
GOST 5950-73 |
annealing |
241 |
Technological Properties
| Weldability |
Propensity to temper brittleness |
|---|
| Not applicable for welded structures |
not inclined |
Critical point temperatures
| Ac1, K |
Ac3(Acm), K |
Ar3(Arcm), K |
Ar1, K |
Mn, K |
|---|
| 815 |
845 |
775 |
625 |
150 |
Analogues
Standards
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 |
| W |
% |
Tungsten |
Description of mechanical properties
| Parameter |
Units of measurement |
Description |
| $$\sigma _{U}$$ |
$$MPa$$ |
Ultimate tensile strength |
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 |
|