K12143
K12143 is a designation in UNS for the material held under material number 1.7332, also listed as 17CrMo3-5. It is a material in the category Heat-resistant structural steels. We list 4 designations recorded for this grade, in the standards DIN / EN and UNS.
If you came for one of these
The most-used names for this grade.About Heat-resistant structural steels
Heat-resistant structural steels are structural steels designed to retain useful strength and dimensional stability at elevated temperatures. They are used for load-bearing components in hot-service equipment where mechanical performance must be maintained during heating.
This describes the material class as a whole. Always confirm the individual grade against the standard before ordering.
Also known as
4 designations · 2 standards · nothing hidden- K11547This grade’s own name
- K12122This grade’s own name
- K12143This grade’s own name
Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here.
Chemical composition
7 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 |
|---|---|
≤ 0.21 | |
0.15–0.3 | |
0.55–0.8 | |
0.035 | |
0.035 | |
0.5–0.8 | |
0.45–0.6 |
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 | ≤0,21 | — | 0.210 | Max |
| Si | 0,15-0,30 | 0.150 | 0.300 | Range |
| P | 0,035 | 0.035 | 0.035 | Exact |
| S | 0,035 | 0.035 | 0.035 | Exact |
| Cr | 0,50-0,80 | 0.500 | 0.800 | Range |
| Mn | 0,55-0,80 | 0.550 | 0.800 | Range |
| Mo | 0,45-0,60 | 0.450 | 0.600 | 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
Not enough recorded composition to predict a transformation temperature for this grade — missing: Ni.
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.
Similar grades — and why
Selection rule, stated so you can disagree with it: same number class 1.7, a shared category, and a published range for Mn / Cr that overlaps this grade’s. These are neighbours in composition space — they are not equivalents, and none is claimed to be interchangeable with this grade.
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.