Alloy ХН33БС
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Alloy KhN33BS
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Designation
| Name | The value |
|---|---|
| Designation GOST Cyrillic | ХН33БС |
| Designation GOST Latin | XH33BC |
| Transliteration | HN33BS |
| The chemical elements | CrNi33BePb |
Description
Alloy ХН33БС applied: exploitation in the form of the reaction tubes in installations for the production of methanol and ammonia and operating at temperatures up to +960 °C and an operating pressure of 3.92 N/mm2.
Note
High-temperature chromium-Nickel alloy based on iron.
Standards
| Name | Code | Standards |
|---|---|---|
| Pipes steel and connecting parts to them | В62 | TU 14-1-5581-2009 |
Chemical composition
| Standard | C | S | P | Mn | Cr | Si | Ni | Fe | Cu | As | Al | V | Ti | Mo | Zn | Sn | Pb | Nb | W | Ce | Co |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TU 14-1-5581-2009 | 0.3-0.4 | ≤0.02 | ≤0.025 | 0.8-1.45 | 20-23 | 0.45-0.95 | 30-33 | The rest | ≤0.2 | ≤0.01 | 0.0005-0.1 | 0.0005-0.15 | 0.0005-0.15 | ≤0.25 | ≤0.01 | ≤0.01 | ≤0.01 | 1-1.7 | 0.05-0.2 | 0.07-0.11 | ≤0.1 |
Fe is the basis.
To TU 14-1-5581-2009 Simultaneously two obligatory additional conditions must be fulfilled:
Nickel equivalent =% Ni + 32% C + 0.6% Mn +% Cu = 40.08 - 46, 870%;
Equivalent chromium =% Cr + 3% Ti +% V +% Mo + 1.6% Si + 0.6% Nb = 21.322 - 26.39%.
The mass fraction of cerium is not determined, it is ensured by the technology of production of the alloy adopted at the plant.
To TU 14-1-5581-2009 Simultaneously two obligatory additional conditions must be fulfilled:
Nickel equivalent =% Ni + 32% C + 0.6% Mn +% Cu = 40.08 - 46, 870%;
Equivalent chromium =% Cr + 3% Ti +% V +% Mo + 1.6% Si + 0.6% Nb = 21.322 - 26.39%.
The mass fraction of cerium is not determined, it is ensured by the technology of production of the alloy adopted at the plant.
Mechanical characteristics
| Section, mm | sT|s0,2, MPa | σB, MPa | d5, % |
|---|---|---|---|
| Pipe tsentrobezhnolityh (DH=100-300 mm, wall thickness of 10-25 mm) as supplied on THAT 14-1-5581-2009 (longitudinal samples) | |||
| ≥245 | ≥490 | ≥8 | |
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 |
