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GB · China · 3 grades

# 40

The designation 40 is carried by 3 different grades. Compare them on the elements that actually differ, then open the one your print means.

- *Matching grades* **3**
- [*Category* **Quenched and tempered steels · 133 grades**](/categories/quenched-and-tempered-steels "Category: Quenched and tempered steels · 133 grades")

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

## Which of the 3 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% |
|---|---|---|---|---|
| [1.0501](/materials/material-no/1.0501 "1.0501") | [1.0501](/materials/material-no/1.0501 "1.0501") 1.0 | [Quenched and tempered steels](/categories/quenched-and-tempered-steels "Quenched and tempered steels") | 123 | 0,32-0,39 |
| [1.0511](/materials/material-no/1.0511 "1.0511") | [1.0511](/materials/material-no/1.0511 "1.0511") 1.0 | [Quenched and tempered steels](/categories/quenched-and-tempered-steels "Quenched and tempered steels") | 63 | 0,37-0,44 |
| [080M40 C40 C40E C40R](/materials/bs/080m40-c40-c40e-c40r "080M40 C40 C40E C40R") | — |  | 4 | — |

## 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")