| Name | The value |
|---|---|
| Name | The value |
| Designation GOST Cyrillic | 20Г2 |
| Designation GOST Latin | 20G2 |
| Transliteration | 20G2 |
| By chemical elements | 20Mn2 |
Steel 20G2 is used: for the production of tooling durability operating under moderate and significant pressures without heating the cutting edge; the wire intended for the manufacture of rivets and bolts by cold heading.
| Name | Code | Standards |
|---|---|---|
| Name | Code | Standards |
| Bars and shapes | В32 | GOST 10702-78 |
| Sheets and strips | В33 | TU 14-1-1035-74 |
| Steel wire medium and high carbon | В72 | TU 14-4-385-73 |
| Standard | C | S | P | Mn | Cr | Si | Ni | Fe | Cu |
|---|---|---|---|---|---|---|---|---|---|
| Standard | C | S | P | Mn | Cr | Si | Ni | Fe | Cu |
| GOST 10702-78 | 0.18-0.26 | ≤0.035 | ≤0.035 | 1.3-1.6 | ≤0.25 | 0.17-0.37 | ≤0.25 | Rest | ≤0.2 |
| TU 14-4-385-73 | 0.18-0.26 | ≤0.035 | ≤0.035 | 1.3-1.6 | ≤0.25 | 0.17-0.37 | ≤0.25 | Rest | ≤0.2 |
| Section, mm | σU, MPa | d5, % | HB, MPa |
|---|---|---|---|
| Section, mm | σU, MPa | d5, % | HB, MPa |
| Hot-rolled steel and hot rolled with special surface finish | |||
| - | - | - | ≤187 |
| Steel calibrated and calibrated with special surface finish | |||
| - | 490-690 | - | - |
| - | - | - | ≤197 |
| - | - | - | ≤197 |
| Wire on the other 14-4-385-73 in the delivery condition. Subanguina with pre-annealing to granular pearlite | |||
| 490-687 | ≥10 | - | |
