| Name | The value |
|---|---|
| Name | The value |
| Designation GOST Cyrillic | 38НКД |
| Designation GOST Latin | 38HKD |
| Transliteration | 38NKD |
| By chemical elements | 38NiCoД |
| Name | The value |
|---|---|
| Name | The value |
| Designation GOST Cyrillic | 38НКД-ВИ |
| Designation GOST Latin | 38HKD-BI |
| Transliteration | 38NKD-VI |
| By chemical elements | 38NiCoД-ВIr |
Alloy 38NKD used: for the manufacture of vacuum-tight junctions with glass marks P-6, С72−4 and sapphire.
Alloy with an average value of CTE.
Alloy with a CTE (7,0−7,8)·10-6 deg-1 in the temperature range from minus 60 to plus 400 °C.
| Name | Code | Standards |
|---|---|---|
| Name | Code | Standards |
| Classification, nomenclature and General rules | В30 | GOST 10994-74 |
| Tape | В34 | GOST 14080-78 |
| Wire, steel, alloy | В73 | GOST 14081-78, TU 14-1-3177-81 |
| Bars and shapes | В32 | GOST 14082-78, TU 14-11-245-88 |
| Blanks. Of the workpiece. Slabs | В31 | TU 14-1-3904-84 |
| Standard | C | S | P | Mn | Si | Ni | Fe | Cu | Co |
|---|---|---|---|---|---|---|---|---|---|
| Standard | C | S | P | Mn | Si | Ni | Fe | Cu | Co |
| GOST 10994-74 | ≤0.05 | ≤0.015 | ≤0.015 | ≤0.4 | ≤0.3 | 37.5-38.5 | Rest | 4.5-5.5 | 4.5-5.5 |
| Temperature | r, kg/m3 | a, 10-6 1/°C |
|---|---|---|
| Temperature | r, kg/m3 | a, 10-6 1/°C |
| 20 | 8200 | - |
| -100 | - | 84 |
| -80 | - | 84 |
| -60 | - | 84 |
| -40 | - | 84 |
| -20 | - | 85 |
| 100 | - | 86 |
| 200 | - | 81 |
| 300 | - | 79 |
| 400 | - | 78 |
| 500 | - | 88 |
| 600 | - | 101 |
| 700 | - | 115 |
| 800 | - | 120 |
