Designation
| Name |
The value |
| Designation GOST Cyrillic |
18кп |
| Designation GOST Latin |
18kp |
| Transliteration |
18kp |
| By chemical elements |
18 |
Description
Steel 18kp used: for the manufacture of welded steel construction of sheets of different thicknesses and structural shapes of different profiles; hot-rolled bars intended for the manufacture of clad strips by hot rolling.
Note
The degree of deoxidation — KP.
Standards
| Name |
Code |
Standards |
| Bars and shapes |
В32 |
GOST 1050-88, GOST 14955-77, GOST 1050-2013, TU 14-1-2118-77, TU 14-11-245-88, TU 14-136-367-2008 |
| Fittings, components and parts for railway rolling stock |
Д55 |
GOST 11530-93 |
| Steel pipes and fittings to them |
В62 |
GOST 3262-75, TU 14-3-1428-86 |
| Tape |
В24 |
GOST 3560-73 |
| Steel wire medium and high carbon |
В72 |
GOST 3920-70, GOST 7372-79, GOST 9389-75, GOST 9850-72, GOST 26366-84 |
| Sheets and strips |
В33 |
GOST 803-81, TU 14-1-4516-88 |
| Sheets and strips |
В23 |
GOST 82-70, GOST 14918-80, GOST 19903-74, GOST 19903-90 |
| Bars and shapes |
В22 |
GOST 8239-89, GOST 8319.0-75, GOST 8509-93, GOST 8510-86 |
| Blanks. Of the workpiece. Slabs |
В31 |
OST 3-1686-90, TU 14-1-4944-90 |
| Welding and cutting metals. Soldering, riveting |
В05 |
OST 36-58-81 |
Mechanical properties
| Section, mm |
sT|s0,2, MPa |
σU, MPa |
d5, % |
| Delivery condition |
| 4-20 |
235 |
365-490 |
26 |
| Sheets and strip, hot-rolled |
| 21-40 |
215 |
365-490 |
25 |
| 4-20 |
225 |
365-490 |
26 |
Description mechanical marks
| Name |
Description |
| sT|s0,2 |
Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2% |
| σU |
Limit short-term strength |
| d5 |
Elongation after rupture |
