Steel SV-04Х20Н10Г2Б (ЭП762)
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Sv-04N3GMTA steel
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Sv-04H20N10G2B (EP762)
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Sv-06Cr3G2SmFtu4 steel
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Steel Sv-07CGSN3MD
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Sv-08 steel
Sv-08G1NMT steel
Sv-08G1S steel
Sv-08G2SM steel
Sv-08G2SNMT steel
Sv-08G2SNTYR steel
Designation
| Name | The value |
|---|---|
| Designation GOST Cyrillic | Св-04Х20Н10Г2Б |
| Designation GOST Latin | Cb-04X20H10G2B |
| Transliteration | Sv-04H20N10G2B |
| The chemical elements | 04Cr20Н10Mn2Nb |
| Name | The value |
|---|---|
| Designation GOST Cyrillic | ЭП762 |
| Designation GOST Latin | EP762 |
| Transliteration | EhP762 |
| The chemical elements | - |
Description
Steel SV-04Х20Н10Г2Б used: for the production of welding of the ribbon thickness of 0.5 and 0.7 mm and the wire from 1.2 mm to 5.0 mm, used for hardfacing of parts and for welding of steel structures in nuclear power engineering.
Note
Corrosion-resistant steel.
Standards
| Name | Code | Standards |
|---|---|---|
| Welding and cutting of metals. Soldering, riveting | В05 | TU 14-1-2270-77, TU 14-1-4591-89, TU 14-1-5363-2008 |
| Tapes | В34 | TU 14-1-2270-2013 |
Chemical composition
| Standard | C | S | P | Mn | Cr | Si | Ni | Fe | Nb |
|---|---|---|---|---|---|---|---|---|---|
| TU 14-1-2270-2013 | ≤0.04 | ≤0.018 | ≤0.025 | 1.8-2.2 | 18.5-20.5 | 0.2-0.45 | 9-10.5 | The rest | 0.9-1.3 |
Fe is the basis.
According to TU 14-1-2270-2013, deviations in the mass fraction of carbon are allowed: plus 0.0050%. Permissible deviations in the mass fraction of the remaining elements in accordance with Table 3 of GOST 2246. Upon agreement of the consumer with the supplier, it is allowed to limit the mass fraction of carbon, sulfur, phosphorus and rationing the residual mass fraction of elements in steel: cobalt, aluminum, copper and nitrogen.
According to TU 14-1-2270-2013, deviations in the mass fraction of carbon are allowed: plus 0.0050%. Permissible deviations in the mass fraction of the remaining elements in accordance with Table 3 of GOST 2246. Upon agreement of the consumer with the supplier, it is allowed to limit the mass fraction of carbon, sulfur, phosphorus and rationing the residual mass fraction of elements in steel: cobalt, aluminum, copper and nitrogen.
Mechanical characteristics
| Section, mm | σB, MPa |
|---|---|
| Tape welding on delivery on the other 14-1-2270-2013 | |
| 880-1127 | |
| Tape welding on the other 14-1-2270-77 | |
| ≤1130 | |
Description mechanical marks
| Name | Description |
|---|---|
| Section | Section |
| σB | Limit short-term strength |
Technological properties
| Name | The value |
|---|---|
| Microstructure | The amount of ferritic phase in steel should be in the range of 4.0 to 8.0%. |
