20MNCR5
5 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 20MNCR5 →20MnCr5 · DIN EN 10084-2008
Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results
- Material form
- Reference record
- Original record status
- Original standard verified
- Standard edition
- DIN EN 10084-2008
- Table / clause
- Table 3, notes a–d
Carbon-equivalent reference
Composition
| Element | Composition requirement |
|---|---|
| C | 0.17 ～ 0.22 |
| Si | ≤ 0.4 (lower limit not stated) |
| Mn | 1.1 ～ 1.4 |
| P | ≤ 0.025 (lower limit not stated) |
| S | ≤ 0.035 (lower limit not stated) |
| Cr | 1.0 ～ 1.3 |
Applicability and limitations
Ladle analysis, mass fraction wt%; the DIN EN 10084:2008-06 cover expressly identifies the German edition of EN 10084:2008; Table 3 follows that source text. Note b: minor composition deviations associated with hardenability requirements must be checked separately against Table 4 and the applicable conditions; they do not widen default ranges, and no such relaxation applies to P/S. Note c: higher S (approximately up to 0.10%) or Pb may be requested for improved machinability; in the higher-S case, the Mn upper limit may increase by 0.15 percentage points. Actual agreed values are not given; do not invent them or apply them automatically. Note d: B in this table improves toughness in the hardened case, not hardenability. Unlisted elements must not be intentionally added without purchaser approval (except as necessary during steelmaking); unspecified does not mean zero. A delivery standard for case-hardening steel does not mean all conditions are suitable for cold heading; verify mechanical properties, hardness and hardenability separately.
Verification notes
Original German Table 3 and its footnotes checkedJominy end-quench hardenability (conditional requirements)
EN 10084:2008 · DIN EN 10084:2008-06, cover explicitly states German version of EN 10084:2008 · Table 5/Table 6/Table 8/Table 9; 7.1.2 and 8.2.2 · PDF pages 7, 10, 12, 18, 19, 22, 23
- 7.1.2: Unless otherwise agreed, Table 5 normal +H hardenability requirements apply to alloy steels in this standard; restricted +HH/+HL bands in Table 6 must be agreed at enquiry/order. Viewing a selection is not contractual confirmation and does not change the ordinary grade designation or order conditions.
- HRC is hardness at a specified distance on a Jominy end-quench specimen, not bulk finished-part hardness, cold-heading acceptance, supply capability or part-performance guarantee.
- Horizontal lines preserve unspecified upper and lower limits and shall not be treated as 0; Do not automatically interpolate, extrapolate, or assess compliance at unlisted distances.
- Table 8 temperatures are austenitizing conditions for the Jominy specimen, not production heat-treatment recommendations. No temperature tolerance is given; do not add ±5°C. Table 8 Note a holding time is indicative only, not a guaranteed requirement.
- 8.2.2 permits the manufacturer to demonstrate hardenability by calculation where a suitable formula exists; the manufacturer chooses the method and, when agreed at enquiry/order, supplies sufficient information for customer review. This tool has not implemented or certified such calculations.
- If no applicable formula exists or a dispute arises, use the end-quench test in EN ISO 642 and Table 9; use Table 8 specimen quenching temperature and the C scale of EN ISO 6508-1 for hardness. The source cites ISO 642:1999 and ISO 6508-1:2005; do not update the cited years.
- Table 9: When inspection certificates and corresponding requirements of Table 1 are applicable, heat C shall be the test unit, with 1 sample per 1 test. When dimensions do not allow for the preparation of end-quench specimens, the conditions for proving hardenability must be agreed upon; In other cases, unless otherwise agreed, the specimen preparation method shall be determined by the manufacturer.
- Table 9 sampling note b is printed “20 m”, conflicting in units with “20 mm” in note c; defer automatic interpretation of that sampling depth. Do not silently correct it or use it as a specimen-preparation instruction.
- The DIN original explicitly adopts EN10084:2008; display only according to this EN technical source; The supplementation of hardenability in this batch shall not be used to claim that the NF standard cover or other standard identities have been verified.
+H Normal hardenability band (7.1.2; applies to alloy steels in this standard unless otherwise agreed)
End-quench test condition temperature 870 (tolerance not listed in source document) °C; This is not a production heat-treatment recommendation.
| Distance from quenched end (mm) | Lower limit (HRC) | Upper limit (HRC) |
|---|---|---|
| 1.5 | 41 | 49 |
| 3 | 39 | 49 |
| 5 | 36 | 48 |
| 7 | 33 | 46 |
| 9 | 30 | 43 |
| 11 | 28 | 42 |
| 13 | 26 | 41 |
| 15 | 25 | 39 |
| 20 | 23 | 37 |
| 25 | 21 | 35 |
| 30 | Unspecified; do not treat as 0 | 34 |
| 35 | Unspecified; do not treat as 0 | 33 |
| 40 | Unspecified; do not treat as 0 | 32 |
+HH Restricted hardenability band (Table 6; agreement at enquiry and order required)
End-quench test condition temperature 870 (tolerance not listed in source document) °C; This is not a production heat-treatment recommendation.
| Distance from quenched end (mm) | Lower limit (HRC) | Upper limit (HRC) |
|---|---|---|
| 1.5 | 44 | 49 |
| 3 | 42 | 49 |
| 5 | 40 | 48 |
| 7 | 37 | 46 |
| 9 | 34 | 43 |
| 11 | 33 | 42 |
| 13 | 31 | 41 |
| 15 | 30 | 39 |
| 20 | 28 | 37 |
| 25 | 26 | 35 |
| 30 | 25 | 34 |
| 35 | 24 | 33 |
| 40 | 23 | 32 |
+HL Restricted hardenability band (Table 6; agreement at enquiry and order required)
End-quench test condition temperature 870 (tolerance not listed in source document) °C; This is not a production heat-treatment recommendation.
| Distance from quenched end (mm) | Lower limit (HRC) | Upper limit (HRC) |
|---|---|---|
| 1.5 | 41 | 46 |
| 3 | 39 | 46 |
| 5 | 36 | 44 |
| 7 | 33 | 42 |
| 9 | 30 | 39 |
| 11 | 28 | 37 |
| 13 | 26 | 36 |
| 15 | 25 | 34 |
| 20 | 23 | 32 |
| 25 | 21 | 30 |
| 30 | Unspecified; do not treat as 0 | 29 |
| 35 | Unspecified; do not treat as 0 | 28 |
| 40 | Unspecified; do not treat as 0 | 27 |
20MnCr5 · ISO 683-18-1996
Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results
- Material category
- Alloy steel
- Subcategory
- Case-hardening steel
- Material form
- Reference record
- Original record status
- Original standard verified
- Standard edition
- ISO 683-18-1996
- Table / clause
- Table3 and footnote 1–5; 7.2.2.1–7.2.2.2
- PDF page references
- 6、11、12、13
Carbon-equivalent reference
Composition
| Element | Composition requirement |
|---|---|
| C | 0.17 ～ 0.23 |
| Si | 0.15 ～ 0.4 |
| Mn | 1.1 ～ 1.4 |
| P | ≤ 0.035 (lower limit not stated) |
| S | ≤ 0.035 (lower limit not stated) |
| Cr | 1.0 ～ 1.3 |
Applicability and limitations
ISO 683-18:1996 Bright non-alloy and low-alloy steel products, Table 3 Heat analysis of carburizing steels, mass fraction wt%; This is not a composition confirmation of the 2014 edition. ; This source is a 13-page public excerpt from the official version; complete composition rows and 5 footnotes from Table 3 have been obtained.; Without Table 4 product-analysis tolerances, Tables 7/8 hardenability data and Chapter 8 compositions of steels for quenching and tempering, verification of the entire standard must not be claimed complete.. ; Currently displaying the range for common grades in Table 3. When hardenability requirements are specified, Footnote 1 allows limited deviations except for P/S, with C not exceeding ±0.01% and other elements subject to Table 4; The absence of Table 4 shall not automatically relax ranges, nor shall it be used for the acceptance of H grades. ; Machinability may be improved by adding lead or controlling sulfide shape upon request; Where lead values are not specified, they shall not be filled as zero or assigned an arbitrary range. ; For other carburizing steels, see ISO 683-11:1987; Different suffix names in the 2014 edition shall not be automatically regarded as the same grade in the 1996 edition. ; A lower Si may be agreed upon during inquiry and ordering, provided the impact on mechanical properties is considered; The base ranges in Table 3 are currently used; do not remove the Si lower limit arbitrarily.. ; Elements not listed in the table must not be assumed to have zero content.; Unlisted elements shall not be intentionally added without the buyer's consent (except additions needed to finish steelmaking), and elements affecting properties introduced via scrap steel etc. shall be prevented. ; Clause 7.2.2.1 stipulates that Table 3 is used for heat analysis; Product-analysis tolerances are given in Table 4, which has not been obtained.. Clause 5.1.2 requires killed steel. Carbide spheroidizing annealing conditions required for cold-heading/cold-extrusion are covered separately by ISO 4954; cold-heading applicability cannot be determined solely by composition.
Verification notes
All rows, merged cells and footnotes in the publicly available official-edition excerpt, Table 3 were visually checked item by item; Only ordinary-grade heat composition has been confirmed20MnCr5 · Ovako Product Catalogue CO-117 ENG 24:07 (2024)
Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results
- Material category
- Alloy steel
- Subcategory
- Alloy steel
- Material form
- Bars, tubes, rings and precomponents
- Composition basis
- Manufacturer typical/nominal values, not guaranteed ranges
- Original record status
- Manufacturer source verified
- Document edition
- CO-117 ENG 24:07 ©Ovako 2024
- Document title
- Ovako Product Catalogue
- PDF page references
- 43
- Unit
- Interpreted as mass fraction (%) using other documents from the same manufacturer; the unit is not explicitly stated in this table
- Analysis type
- Typical composition analysis
- Manufacturer
- Ovako
Carbon-equivalent reference
Manufacturer typical single values are composition references only; no range estimate is made. They are neither standard guarantees nor measured heat results; Formula applicability requires review against the intended use and process.
Composition
| Element | Composition requirement |
|---|---|
| C | Typical/nominal value 0.2 (not a guaranteed range) |
| Si | Typical/nominal value 0.2 (not a guaranteed range) |
| Mn | Typical/nominal value 1.3 (not a guaranteed range) |
| Cr | Typical/nominal value 1.2 (not a guaranteed range) |
Applicability and limitations
Ovako 2024 product catalogue PDF, page 43. Manufacturer Typical analysis typical values are composition references only. Units are not explicitly stated in the original header and are interpreted as mass fraction % from the manufacturer's documentation. These are neither standard-guaranteed values nor measured heat-analysis results. They are excluded from limit-based reverse lookup and carbon-equivalent calculations. Blank entries, and Other given only as an element name, are not assigned 0. Manufacturer codes: 236, 4326.
Conditional requirement
- Footnote
- Units
- Source conditions
- The original table header does not state units explicitly; interpreted as mass fraction % using the manufacturer’s official chemistry information. This table does not itself print wt%.
- Footnote
- Typical analysis
- Source conditions
- All values are manufacturer’s typical single values, not limits or measured heat analysis; not used for limit-based reverse search or standard-range carbon equivalent.
- Footnote
- Grade designation
- Source conditions
- An asterisk after the original grade indicates a non-official EN standard designation, named only according to EN10027. This does not complete verification of the cited standard originals or editions.
Verification notes
All 170 rows of the 2021 original table were visually checked. Values in corresponding 2024 cells are unchanged; recognition differences were reviewed separately. Rows with conflicting values under the same code are excluded; values are not mixed across sections.Source notes
For small-sized transmission components, moderate core hardness.20MnCr5 · Ovako Product Catalogue CO-117 ENG 24:07 (2024)
Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results
- Material category
- Alloy steel
- Subcategory
- Alloy steel
- Material form
- Bars, tubes, rings and precomponents
- Composition basis
- Manufacturer typical/nominal values, not guaranteed ranges
- Original record status
- Manufacturer source verified
- Document edition
- CO-117 ENG 24:07 ©Ovako 2024
- Document title
- Ovako Product Catalogue
- PDF page references
- 66
- Unit
- Interpreted as mass fraction (%) using other documents from the same manufacturer; the unit is not explicitly stated in this table
- Analysis type
- Typical composition analysis
- Manufacturer
- Ovako
Carbon-equivalent reference
Manufacturer typical single values are composition references only; no range estimate is made. They are neither standard guarantees nor measured heat results; Formula applicability requires review against the intended use and process.
Composition
| Element | Composition requirement |
|---|---|
| C | Typical/nominal value 0.2 (not a guaranteed range) |
| Si | Typical/nominal value 0.2 (not a guaranteed range) |
| Mn | Typical/nominal value 1.3 (not a guaranteed range) |
| Cr | Typical/nominal value 1.2 (not a guaranteed range) |
Applicability and limitations
Ovako 2024 product catalogue, PDF page 66; manufacturer’s typical analysis, for composition reference only. The original header does not explicitly state units; interpreted using the manufacturer’s mass-fraction % information. Neither standard guaranteed values nor measured heat analysis. Excluded from limit-based reverse search and carbon-equivalent calculation; blanks and element names alone in the other-elements field are not filled with 0. Manufacturer code: 236.
Conditional requirement
- Footnote
- Units
- Source conditions
- The original table header does not state units explicitly; interpreted as mass fraction % using the manufacturer’s official chemistry information. This table does not itself print wt%.
- Footnote
- Typical analysis
- Source conditions
- All values are manufacturer’s typical single values, not limits or measured heat analysis; not used for limit-based reverse search or standard-range carbon equivalent.
- Footnote
- Grade designation
- Source conditions
- An asterisk after the original grade indicates a non-official EN standard designation, named only according to EN10027. This does not complete verification of the cited standard originals or editions.
Verification notes
All 170 rows of the 2021 original table were visually checked. Values in corresponding 2024 cells are unchanged; recognition differences were reviewed separately. Rows with conflicting values under the same code are excluded; values are not mixed across sections.Source notes
For small-sized transmission components, moderate core Hardness, available as IQ20MnCr5 · 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
- Alloy steel
- Subcategory
- Alloy 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.3
- PDF page references
- 45
- Unit
- mass fraction (wt%)
- Analysis type
- Heat analysis (informative reference)
Carbon-equivalent reference
Composition
| Element | Composition requirement |
|---|---|
| C | 0.17 ～ 0.22 |
| Si | 0.15 ～ 0.4 |
| Mn | 1.1 ～ 1.4 |
| P | ≤ 0.025 (lower limit not stated) |
| S | ≤ 0.035 (lower limit not stated) |
| Cr | 1.0 ～ 1.3 |
| Cu | ≤ 0.4 (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.
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 reference: EN ISO 683-3 (undated reference; applicable edition 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.