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AISI / SAE · United States · 5 grades

# 5120

The designation 5120 is carried by 5 different grades. Compare them on the elements that actually differ, then open the one your print means.

- *Matching grades* **5**
- [*Category* **Unalloyed structural steels · 452 grades**](/categories/unalloyed-structural-steels "Category: Unalloyed structural steels · 452 grades")
- [*Category* **Case hardening steels · 60 grades**](/categories/case-hardening-steels "Category: Case hardening steels · 60 grades")
- [*Category* **Others · 1754 grades**](/categories/others "Category: Others · 1754 grades")

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

## Which of the 5 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 | Cr% | C% | Mn% | Al% | S% |
|---|---|---|---|---|---|---|---|---|
| [1.0841](/materials/material-no/1.0841 "1.0841") | [1.0841](/materials/material-no/1.0841 "1.0841") 1.0 | [Unalloyed structural steels](/categories/unalloyed-structural-steels "Unalloyed structural steels") | 9 | — | — | — | — | — |
| [19 Mn Cr 5](/materials/din-en/19mncr5 "19 Mn Cr 5") | [1.3523](/materials/material-no/1.3523 "1.3523") 1.3 | [Case hardening steels](/categories/case-hardening-steels "Case hardening steels"), [Others](/categories/others "Others") | 16 | 1,10-1,30 | 0,17-0,22 | 1,10-1,40 | ≤0,050 | 0,015 |
| [20Cr4](/materials/din-en/20cr4 "20Cr4") | [1.7027](/materials/material-no/1.7027 "1.7027") 1.7 | [Case hardening steels](/categories/case-hardening-steels "Case hardening steels") | 25 | 0,90-1,20 | 0,17-0,23 | 0,60-0,90 | ≤0,05 | 0,015 |
| [1.7131](/materials/material-no/1.7131 "1.7131") | [1.7131](/materials/material-no/1.7131 "1.7131") 1.7 | [Case hardening steels](/categories/case-hardening-steels "Case hardening steels") | 78 | 0,80-1,10 | 0,14-0,19 | 1,00-1,30 | — | 0,035 |
| [20MnCr5](/materials/din-en/20mncr5 "20MnCr5") | [1.7147](/materials/material-no/1.7147 "1.7147") 1.7 | [Case hardening steels](/categories/case-hardening-steels "Case hardening steels") | 45 | 1,00-1,30 | 0,17-0,22 | 1,10-1,40 | — | 0,035 |

## 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")