Steel KH12F1
Designation
| Name |
The value |
| Designation GOST Cyrillic |
Х12Ф1 |
| Designation GOST Latin |
X12F1 |
| Transliteration |
H12F1 |
| The chemical elements |
Cr12V1 |
Description
Steel KH12F1 apply: when required a larger viscosity than that of steel grade 12X — for the manufacture of cold stamps high resistance to abrasion (mainly with working part rounded), not exposed to strong shocks and jolts; die plates and dies, eyes for the calibration metal rod under the knurling thread; bending and forming dies, complex dies sections body, which in the hardening should not be subjected to significant volume changes and warping; matrices and punches blanking and cutting dies; stampings of the active parts of electrical machines and electromagnetic systems of electric devices.
For the manufacture of rollers for the forming of complex shapes; sections of the different stamping dies complex forms; complex matrices dinoprostone in sheet metal forming, master gears, rolling dies, dies, matrices and punches blanking, cutting dies (including combined and sequential) with a complex configuration working parts; stampings of the active parts of electrical machines.
Standards
| Name |
Code |
Standards |
| Sectional and shaped rolling |
В22 |
GOST 1133-71, GOST 2590-2006, GOST 2591-2006 |
| Sheets and stripes |
В33 |
GOST 4405-75, TU 14-131-971-2001 |
| Sectional and shaped rolling |
В32 |
GOST 5950-2000, GOST 7417-75, GOST 8559-75, GOST 8560-78, GOST 14955-77, TU 14-1-3198-81, TU 14-11-245-88 |
| Bulls. Blanks. Slabs |
В31 |
OST 24.952.01-89 |
Chemical composition
| Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Fe |
Cu |
V |
Ti |
Mo |
W |
| GOST 5950-2000 |
1.25-1.45 |
≤0.03 |
≤0.03 |
0.15-0.45 |
11-12.5 |
0.1-0.4 |
≤0.4 |
The rest |
≤0.3 |
0.7-0.9 |
≤0.03 |
≤0.2 |
≤0.2 |
Fe is the basis.
Physical characteristics
| Temperature |
R, НОм · м |
| 20 |
640 |
A description of the physical symbols
| Name |
Description |
| R |
UD. the resistivity |
Technological properties
| Name |
The value |
| Weldability |
does not apply to welded structures. |
| Propensity to temper brittleness |
tend not |
| Forging temperature |
Start - 1160 °C, the end - 850 °C. the cross-Section up to 200 mm are subjected to low-temperature annealing, one hypothermia. |
| Flock-sensitive sensitivity |
not sensitive |
| Workability by cutting |
In hot-rolled condition in NV 217-228 Kn TV.SPL.=0.8 Kn b.St.=0.3 |
| Grindability |
satisfactory |
