Alloy 58НХВКТБЮ (ЭП877; ХН58ВКБТЮ)
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Alloy 58NHVKTBU (EP877; ХН58VCBTU)
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Designation
| Name | The value |
|---|---|
| Designation GOST Cyrillic | 58НХВКТБЮ |
| Designation GOST Latin | 58HXBKTBJu |
| Transliteration | 58NHVKTBYu |
| The chemical elements | 58NiCrВCoTeBeAl |
| Name | The value |
|---|---|
| Designation GOST Cyrillic | ЭП877 |
| Designation GOST Latin | EP877 |
| Transliteration | EhP877 |
| The chemical elements | - |
| Name | The value |
|---|---|
| Designation GOST Cyrillic | ХН58ВКБТЮ |
| Designation GOST Latin | XH58BKBTJu |
| Transliteration | HN58VKBTYu |
| The chemical elements | CrNi58ВCoBeTeAl |
Description
Alloy 58НХВКТБЮ used: for the manufacture of ingots, hot-rolled and forged bars intended for the production of highly loaded high-temperature elastic elements of Aviapribor and automatic systems of aircraft.
Note
High-temperature age-hardening Nickel-based alloy.
Standards
| Name | Code | Standards |
|---|---|---|
| Bulls. Blanks. Slabs | В31 | TU 1-809-823-99 |
| Bars | В55 | TU 14-1-3182-81 |
Chemical composition
| Standard | C | S | P | Mn | Cr | Si | Ni | Fe | Cu | Al | B | Ti | Nb | W | Co | Y | La |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TU 14-1-3182-81 | ≤0.05 | ≤0.007 | ≤0.015 | ≤0.4 | 16-18 | ≤0.5 | The rest | 11-13 | ≤0.07 | 1.3-1.8 | ≤0.009 | 2.5-3 | 1.4-1.7 | 11-12.5 | 6-7 | ≤0.02 | ≤0.02 |
Ni is the basis.
According to TU 14-1-3182-81, the chemical composition is given for the alloy grade 58NHVKTVBU-VI (EP877-VI). Boron, lanthanum and yttrium are introduced by calculation and chemical analysis is not determined. In the finished product, deviations in chemical composition are allowed: cobalt -0.50%, sulfur +0.0030%, copper + 0.030%. The alloy allows the presence of lead, antimony, tin, bismuth and arsenic not more than 1 point of the special analysis scale. The content of residual elements in the alloy in accordance with GOST 5632.
According to TU 14-1-3182-81, the chemical composition is given for the alloy grade 58NHVKTVBU-VI (EP877-VI). Boron, lanthanum and yttrium are introduced by calculation and chemical analysis is not determined. In the finished product, deviations in chemical composition are allowed: cobalt -0.50%, sulfur +0.0030%, copper + 0.030%. The alloy allows the presence of lead, antimony, tin, bismuth and arsenic not more than 1 point of the special analysis scale. The content of residual elements in the alloy in accordance with GOST 5632.
Mechanical characteristics
| Section, mm | σB, MPa | d5, % | Brinell hardness number, MPa |
|---|---|---|---|
| Bars hot rolled and forged on the other 14-1-3182-81. Quenching in water from 1130±10 °C + the Dispersion hardening at 800±10 °C (exposure 4 h) and at 700±10 °C (6 h exposure) | |||
| ≥1323 | ≥10 | ≥415 | |
Description mechanical marks
| Name | Description |
|---|---|
| Section | Section |
| σB | Limit short-term strength |
| d5 | Elongation after rupture |
Technological properties
| Name | The value |
|---|---|
| Macrostructure and contamination | The macrostructure of the alloy should not have shrinkage, porosity, bubbles, cracks, inclusions, brown, bundles. |
| Features of production | Bars hot rolled and forged on the other 14-1-3182-81 are supplied without heat treatment. Allowed to supply bars with heat treatment regime: Quenching in water from 1130±10 °C. |
