Steel KH12F1

Designation

Name The value
Designation GOST Cyrillic Х12Ф1
Designation GOST Latin X12F1
Transliteration H12F1
By 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
Bars and shapes В22 GOST 1133-71, GOST 2590-2006, GOST 2591-2006
Sheets and strips В33 GOST 4405-75, TU 14-131-971-2001
Bars and shapes 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
Blanks. Of the workpiece. 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 Rest ≤0.3 0.7-0.9 ≤0.03 ≤0.2 ≤0.2
Fe is the basis.

Physical characteristics

Temperature R, Mr. · m
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.
Склонность к отпускной хрупкости tend not
The temperature of forging 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
Machinability In hot-rolled condition in NV 217-228 Kn TV.SPL.=0.8 Kn b.St.=0.3
Sanding behaviour satisfactory