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title: "708M40 — 6 equivalent grades, compared"
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BS · United Kingdom · 6 grades

# 708M40

The designation 708M40 is carried by 6 different grades. Compare them on the elements that actually differ, then open the one your print means.

- *Matching grades* **6**
- [*Category* **Others · 1754 grades**](/categories/others "Category: Others · 1754 grades")
- [*Category* **Quenched and tempered steels · 133 grades**](/categories/quenched-and-tempered-steels "Category: Quenched and tempered steels · 133 grades")
- [*Category* **Steels for surface hardening · 13 grades**](/categories/steels-for-surface-hardening "Category: Steels for surface hardening · 13 grades")

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

## Which of the 6 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% | Si% | Mn% | Mo% | Cr% | P% |
|---|---|---|---|---|---|---|---|---|---|
| [35CrMo4](/materials/din-en/35crmo4 "35CrMo4") | [1.2330](/materials/material-no/1.2330 "1.2330") 1.2 | [Others](/categories/others "Others") | 16 | 0,32-0,37 | 0,20-0,40 | 0,60-0,80 | 0,20-0,25 | 0,90-1,10 | — |
| [1.6511](/materials/material-no/1.6511 "1.6511") | [1.6511](/materials/material-no/1.6511 "1.6511") 1.6 | [Quenched and tempered steels](/categories/quenched-and-tempered-steels "Quenched and tempered steels") | 91 | 0,32-0,40 | ≤0,40 | 0,50-0,80 | 0,15-,30 | 0,90-1,20 | 0,035 |
| [1.7223](/materials/material-no/1.7223 "1.7223") | [1.7223](/materials/material-no/1.7223 "1.7223") 1.7 | [Steels for surface hardening](/categories/steels-for-surface-hardening "Steels for surface hardening") | 30 | 0,38-0,44 | 0,15-0,40 | 0,50-0,80 | 0,15-0,30 | 0,90-1,20 | 0,025 |
| [1.7225](/materials/material-no/1.7225 "1.7225") | [1.7225](/materials/material-no/1.7225 "1.7225") 1.7 | [Quenched and tempered steels](/categories/quenched-and-tempered-steels "Quenched and tempered steels") | 95 | 0,38-0,45 | ≤0,40 | 0,60-0,90 | 0,15-0,30 | 0,90-1,20 | 0,025 |
| [42CrMoS4](/materials/din-en/42crmos4 "42CrMoS4") | [1.7227](/materials/material-no/1.7227 "1.7227") 1.7 | [Quenched and tempered steels](/categories/quenched-and-tempered-steels "Quenched and tempered steels") | 28 | 0,38-0,45 | ≤0,40 | 0,60-0,90 | 0,15-0,30 | 0,90-1,20 | 0,025 |
| [50CrMo4](/materials/din-en/50crmo4 "50CrMo4") | [1.7228](/materials/material-no/1.7228 "1.7228") 1.7 | [Quenched and tempered steels](/categories/quenched-and-tempered-steels "Quenched and tempered steels") | 29 | 0,46-0,54 | ≤0,40 | 0,50-0,80 | 0,15-0,30 | 0,90-1,20 | 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")