Alloy ХН62ВМЮТ (ЭП708)
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Alloy KhN55MVU (EP454)
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Alloy KhN53KVMTYUB (EP741P)
Alloy KhN57VKYUTMBL (ZhS6)
Alloy KhN51MTYUKFR (EP220)
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Alloy KhN50KVMTYUB (BB750)
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Alloy H70M (EP495)
Designation
| Name | The value |
|---|---|
| Designation GOST Cyrillic | ХН62ВМЮТ |
| Designation GOST Latin | XH62BMJuT |
| Transliteration | HN62VMYuT |
| The chemical elements | CrNi62ВCuAlTe |
| Name | The value |
|---|---|
| Designation GOST Cyrillic | ЭП708 |
| Designation GOST Latin | EP708 |
| Transliteration | EhP708 |
| The chemical elements | - |
Description
Alloy ХН62ВМЮТ used: for the manufacture of parts of power plant engineering and turbine; solid-rolled rings for different purposes.
Note
High-temperature Nickel-based alloy.
The recommended maximum operating temperature for limited time +800 °C.
Standards
| Name | Code | Standards |
|---|---|---|
| Bulls. Blanks. Slabs | В31 | OST 1 90304-81, OST 1 90419-92, TU 14-1-1214-75, TU 1-809-823-99 |
| Sectional and shaped rolling | В32 | OST 1 92049-76, TU 14-1-1018-74 |
| Tapes | В34 | TU 14-1-2323-78 |
| Sheets and stripes | В33 | TU 14-1-3556-83 |
Chemical composition
| Standard | C | S | P | Mn | Cr | Si | Ni | Fe | Al | B | Ti | Mo | W | Ce |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| OST 1 90304-81 | 0.05-0.1 | ≤0.02 | ≤0.02 | ≤0.5 | 17.5-20 | ≤0.4 | The rest | ≤4 | 1.9-2.3 | ≤0.01 | 1-1.4 | 4-6 | 5.5-7.5 | ≤0.03 |
Ni is the basis.
According to OST 1-90304-81 the chemical composition is given for the alloy ХН62ВМЮТ-ВД (ЭП708-ВД). Cerium and boron are introduced by calculation and chemical analysis is not determined.
According to OST 1-90304-81 the chemical composition is given for the alloy ХН62ВМЮТ-ВД (ЭП708-ВД). Cerium and boron are introduced by calculation and chemical analysis is not determined.
Mechanical characteristics
| Section, mm | sT|s0,2, MPa | σB, MPa | d5, % | y, % | kJ/m2, кДж/м2 |
|---|---|---|---|---|---|
| Ring forged in OST 1 92049-76. Annealing in air 1130-1150 °C + Aging at 790-810 °C (extract 15 h), air cooling | |||||
| 25 | ≥660 | ≥1030 | ≥15 | ≥17 | - |
| Ring welded alloy ХН62ВМЮТ-VD supplied to EAST 1-90304-81 | |||||
| 20 | ≥700 | ≥1000 | ≥18 | - | ≥198 |
| 800 | ≥600 | ≥700 | ≥14 | ≥25 | - |
Description mechanical marks
| Name | Description |
|---|---|
| Section | Section |
| sT|s0,2 | Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2% |
| σB | Limit short-term strength |
| d5 | Elongation after rupture |
| y | The relative narrowing |
| kJ/m2 | Toughness |
