Designation
| Name |
The value |
| Designation GOST Cyrillic |
16ХСН |
| Designation GOST Latin |
16XCH |
| Transliteration |
16HSN |
| By chemical elements |
16CrСН |
Description
16KHSN steel is used: for the manufacture of parts by cold heading; wire intended for the manufacture of rivets and bolts by cold heading.
Standards
| Name |
Code |
Standards |
| Bars and shapes |
В32 |
GOST 10702-78, TU 14-1-2995-80, TU 14-1-3708-83, TU 14-1-3011-80, TU 14-1-510-73 |
| Classification, nomenclature and General rules |
В20 |
OST 1 90005-91 |
| Steel wire medium and high carbon |
В72 |
TU 14-4-385-73 |
Chemical composition
| Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Fe |
Cu |
| GOST 10702-78 |
0.13-0.2 |
≤0.035 |
≤0.035 |
0.3-0.6 |
0.8-1.1 |
0.6-0.9 |
0.6-0.9 |
Rest |
≤0.2 |
| TU 14-4-385-73 |
0.13-0.2 |
≤0.035 |
≤0.035 |
0.3-0.6 |
0.8-1.1 |
0.6-0.9 |
0.6-0.9 |
Rest |
≤0.2 |
Fe is the basis.
According to TU 14-4-385-73 in steel made by scrap-process, the content of residual copper is allowed up to 0.30%.
Mechanical properties
| Section, mm |
σU, MPa |
d5, % |
y, % |
HB, MPa |
HRC |
| Hot-rolled steel and hot rolled with special surface finish |
| - |
- |
- |
- |
≤197 |
- |
| Steel calibrated and calibrated with special surface finish |
| - |
440-640 |
- |
- |
- |
- |
| - |
≤640 |
- |
≥55 |
- |
- |
| - |
≤540 |
- |
≥55 |
- |
- |
| Gradation of performance properties of the finished heat-treated parts for OST 1 90005-91 |
| - |
880-1080 |
- |
- |
262-321 |
27-35 |
| - |
1180-1370 |
- |
- |
341-388 |
37-41 |
| Wire on the other 14-4-385-73 in the delivery condition. Subanguina with pre-annealing to granular pearlite |
|
441-638 |
≥10 |
- |
- |
- |
Description mechanical marks
| Name |
Description |
| σU |
Limit short-term strength |
| d5 |
Elongation after rupture |
| y |
The relative narrowing |
| HB |
Brinell hardness number |
| HRC |
Rockwell hardness (indenter diamond spheroconical) |
