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title: "K12529 — 4 equivalent grades, compared"
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UNS · United States · 4 grades

# K12529

The designation K12529 is carried by 4 different grades. Compare them on the elements that actually differ, then open the one your print means.

- *Matching grades* **4**
- [*Category* **Heat-resistant structural steels · 62 grades**](/categories/heat-resistant-structural-steels "Category: Heat-resistant structural steels · 62 grades")

[Search](/search "Steel grade search")[Inquiry](/inquiry "Inquiry")

## Which of the 4 do you want?

This name is carried by several grades. The elements shown are the ones whose values actually differ across the set — the ones that decide the question. Values are the source text verbatim; an em dash means no value on file for that element on that grade, not zero.

| Grade | Material no. | Category | Designations | C% | N% | Si% | P% | Mn% | Ni% |
|---|---|---|---|---|---|---|---|---|---|
| [17MnMoV6-4](/materials/din-en/17mnmov6-4 "17MnMoV6-4") | [1.5403](/materials/material-no/1.5403 "1.5403") 1.5 | [Heat-resistant structural steels](/categories/heat-resistant-structural-steels "Heat-resistant structural steels") | 8 | ≤0,19 | 0,02 | 0,20-0,50 | 0,035 | 1,40-1,70 | 1 |
| [20MnMoNi5-5](/materials/din-en/20mnmoni5-5 "20MnMoNi5-5") | [1.6310](/materials/material-no/1.6310 "1.6310") 1.6 | [Heat-resistant structural steels](/categories/heat-resistant-structural-steels "Heat-resistant structural steels") | 6 | 0,17-0,23 | 0,013 | 0,15-0,30 | 0,012 | 1,20-1,50 | 0,50-0,80 |
| [20MnMoNi4-5](/materials/din-en/20mnmoni4-5 "20MnMoNi4-5") | [1.6311](/materials/material-no/1.6311 "1.6311") 1.6 | [Heat-resistant structural steels](/categories/heat-resistant-structural-steels "Heat-resistant structural steels") | 5 | 0,15-0,23 | 0,012 | ≤0,40 | 0,02 | 1,00-1,50 | 0,40-0,80 |
| [15NiCuMoNb5](/materials/din-en/15nicumonb5 "15NiCuMoNb5") | [1.6368](/materials/material-no/1.6368 "1.6368") 1.6 | [Heat-resistant structural steels](/categories/heat-resistant-structural-steels "Heat-resistant structural steels") | 13 | ≤0,17 | ≤0,020 | 0,25-0,50 | 0,025 | 0,80-1,20 | 1,00-1,30 |

## Not sure which one your print means?

Search the catalogue by designation, material number or composition — every name on this page is itself a way in.

[Search](/search "Steel grade search")[Inquiry](/inquiry "Inquiry")