Alloy 46ХНМ (ЭП630; 47ХН2М)
Designation
| Name |
The value |
| Designation GOST Cyrillic |
46ХНМ |
| Designation GOST Latin |
46XHM |
| Transliteration |
46HNM |
| The chemical elements |
46CrNiCu |
| Name |
The value |
| Designation GOST Cyrillic |
ЭП630 |
| Designation GOST Latin |
EP630 |
| Transliteration |
EhP630 |
| The chemical elements |
- |
| Name |
The value |
| Designation GOST Cyrillic |
47ХН2М |
| Designation GOST Latin |
47XH2M |
| Transliteration |
47HN2M |
| The chemical elements |
47CrNi2Cu |
Description
Alloy 46ХНМ used: for the production of forged slabs to the elastic elements produced by free forging on presses and is designed for hot machining (re-rolling on sheet); the manufacture of special purpose products; pipe joints, fittings and other parts with the body of the article with a thickness of up to 25.0 mm in equipment, working with radioactive media.
Note
Precision corrosion resistant chromium-Nickel alloy. Alloy ЭП630 has a very high degree of alloying, the narrow limits of chemical composition and very low ductility.
Standards
| Name |
Code |
Standards |
| Welding and cutting of metals. Soldering, riveting |
В05 |
OST 95 10441-2002 |
| Steel alloy wire |
В73 |
TU 14-1-1060-74 |
| Sheets and stripes |
В33 |
TU 14-1-2116-77, TU 14-1-3124-81 |
| Bulls. Blanks. Slabs |
В31 |
TU 14-1-2556-78, TU 14-1-3123-81, TU 14-1-3125-81 |
| Tapes |
В34 |
TU 14-1-2572-78, TU 14-1-3505-82 |
| Sectional and shaped rolling |
В32 |
TU 14-1-999-73 |
| Pipes steel and connecting parts to them |
В62 |
TU 14-3-1045-81, TU 14-3-1082-82 |
Mechanical characteristics
| Section, mm |
σB, MPa |
d |
| The billet according to TU 14-1-3125-81. The longitudinal samples. Quenching in water or air with 1190-1210 °C |
|
637-882 |
≥35 |
| Bars hot rolled and forged in the delivery condition on the other 14-1-999-73 (longitudinal samples) |
|
≥690 |
≥10 |
| Seamless cold-worked tubes in the delivery condition on the other 14-3-1045-81 |
|
588-882 |
≥35 |
Description mechanical marks
| Name |
Description |
| Section |
Section |
| σB |
Limit short-term strength |
| d |
Elongation after rupture |
Technological properties
| Name |
The value |
| Weldability |
Manual argon arc welding with non-consumable electrode (filler or without filler metal), use of combined methods of welding. |
| Macrostructure and contamination |
The macrostructure of the forged slabs on the other 14-1-2556-78 should not have traces of shrinkage, blistering, delamination, foreign non-metallic inclusions that are visible without using the magnifying devices. |
| Features of production |
Bars hot rolled and forged on the other 14-1-999-73 are supplied without heat treatment. |
