03Х21Н32М3Б-ВИ
03Х21Н32М3Б-ВИ is a designation in GOST for the grade also listed as 03Kh21N32M3B. We list 6 designations recorded for this grade, in the standards GOST.
- Designations 6
If you came for one of these
The most-used names for this grade.Also known as
6 designations · 1 standards · nothing hiddenEvery designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here.
Chemical composition
9 elements on file · weight %What this alloy is
Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade.
| Element | % by weight |
|---|---|
≤ 0.03 | |
≤ 0.35 | |
1.3–1.7 | |
≤ 0.015 | |
≤ 0.01 | |
20–22 | |
3–4 | |
31.5–33 | |
0.9–1.2 |
The scale is logarithmic, not the element’s raw share of the alloy — the only honest way to fit 0.01 % and 100 % in one picture, and it means every value here can be compared with every other.
| Element | As publishedsource text, verbatim | Min% by weight | Max% by weight | Bound |
|---|---|---|---|---|
| C | max 0.03 | — | 0.030 | Max |
| Si | max 0.35 | — | 0.350 | Max |
| P | max 0.015 | — | 0.015 | Max |
| S | max 0.01 | — | 0.010 | Max |
| Cr | 20 - 22 | 20.000 | 22.000 | Range |
| Mn | 1.3 - 1.7 | 1.300 | 1.700 | Range |
| Ni | 31.5 - 33 | 31.500 | 33.000 | Range |
| Nb | 0.9 - 1.2 | 0.900 | 1.200 | Range |
| Mo | 3 - 4 | 3.000 | 4.000 | Range |
The published column is the source string byte-for-byte, decimal comma and all; Min and Max are the parsed bounds. Elements not listed have no value on file — they are omitted, never inferred.
Predicted transformation temperatures
This grade's composition falls outside the published model's validated range (a low-alloy composition window), so no transformation temperature is predicted here.
Physical & mechanical properties
An absent property means we hold no value for it — it is left out rather than estimated, interpolated from a neighbouring grade, or filled from a handbook. It does not mean the property is undefined for the material.
Looking for this grade under another name?
Search the catalogue by designation, material number or composition — every name on this page is itself a way in.






