C25E
1 source records. Standards, editions and conditions are presented separately; matching grade names do not establish interchangeability.
Refer to each source for mass fractions and analysis type. Missing values are not treated as 0. Manufacturer typical values, standard guarantees and measured heat results must remain separate. Use the material selector for calculations and condition selection.
Open condition selection, comparison and carbon-equivalent tools for C25E →C25E · DIN EN 10277:2018-09
Original table in an informative annex verified; normative composition requirements and edition still require verification. For reference only.
- Material category
- Carbon steel
- Subcategory
- Carbon steel
- Material form
- Reference record
- Composition basis
- Heat analysis in an informative annex; for reference only
- Verification status
- Original table in an informative annex verified; normative composition requirements and edition still require verification
- Standard edition
- DIN EN 10277:2018-09
- Table / clause
- Informative Annex A.4
- PDF page references
- 46
- Unit
- mass fraction (wt%)
- Analysis type
- Heat analysis (informative reference)
Carbon-equivalent reference
Composition
| Element | Composition requirement |
|---|---|
| C | 0.22 ～ 0.29 |
| Si | 0.1 ～ 0.4 |
| Mn | 0.4 ～ 0.7 |
| P | ≤ 0.025 (lower limit not stated) |
| S | ≤ 0.035 (lower limit not stated) |
| Cr | ≤ 0.4 (lower limit not stated) |
| Mo | ≤ 0.1 (lower limit not stated) |
| Ni | ≤ 0.4 (lower limit not stated) |
| Cu | ≤ 0.3 (lower limit not stated) |
Applicability and limitations
The original informative-annex table has been checked and is for reference only. Clause 7.1.2 requires chemical composition to be determined under the cited standard; the formal normative composition and applicable edition remain unverified. Do not use it as a delivery guarantee, a reverse-search acceptance criterion or a basis for standard-range carbon equivalent.
Composition conditions
- The original informative-annex table has been checked and is for reference only. Clause 7.1.2 requires chemical composition to be determined under the cited standard; the formal normative composition and applicable edition remain unverified. Do not use it as a delivery guarantee, a reverse-search acceptance criterion or a basis for standard-range carbon equivalent.
- Footnote b: A quotation is required to raise S to about 0.10% or add Pb; when S is increased, the Mn upper limit may be raised by 0.15%, but this is not automatic.
- Footnote c: Reducing Si requires other deoxidation measures.
- Unlisted elements shall not be intentionally added without the buyer’s consent.
Combined limits
- Element-sum limits
- Elements concerned
- Cr
- Mo
- Ni
- Upper limit
- 0.63
- Additional source notes
- Cr+Mo+Ni: 0,63
Conditional requirement
- Footnote
- Informative boundary
- Source conditions
- The original informative annex table has been checked and is for reference only; Main-text 7.1.2 requires chemical composition to be determined under the referenced standards; the normative composition and applicable editions still require verification. It must not be used as a delivery guarantee, reverse-matching criterion or basis for carbon equivalent calculated from standard composition ranges. Main-text references: EN ISO 683-1 and EN ISO 683-2 (undated references; applicable editions awaiting verification).
- Footnote
- Original-table condition 1
- Source conditions
- Footnote b: A quotation is required to raise S to about 0.10% or add Pb; when S is increased, the Mn upper limit may be raised by 0.15%, but this is not automatic.
- Footnote
- Original-table condition 2
- Source conditions
- Footnote c: Reducing Si requires other deoxidation measures.
- Footnote
- Original-table condition 3
- Source conditions
- Unlisted elements shall not be intentionally added without the buyer’s consent.