25MN4
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 25MN4 →25Mn4 · EN 10132-3-2000
Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results
- Material category
- Carbon steel
- Subcategory
- Carbon steel
- Material form
- Cold-rolled narrow strip; dimensions and delivery condition subject to applicable conditions
- Original record status
- Original standard verified
- Standard edition
- EN 10132-3:2000
- Table / clause
- Table 1; Table 2; clauses 1,4,7.3–7.5
- PDF page references
- 1、4、5、8
- Unit
- Mass fraction (wt%)
- Analysis type
- Heat analysis
Carbon-equivalent reference
Composition
| Element | Composition requirement |
|---|---|
| C | 0.23 ～ 0.28 |
| Si | ≤ 0.4 (lower limit not stated) |
| Mn | 0.95 ～ 1.15 |
| P | ≤ 0.035 (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) |
Applicability and limitations
Actually based on the official English text of EN 10132-3:2000; This standard covers cold-rolled narrow steel strip intended for heat treatment; it does not constitute a supply guarantee for cold-heading wire.. Table 1 is for heat analysis; Permissible deviations for finished product analysis in Table 2 are registered independently; finished product permissible deviations shall not be used to relax heat analysis. Table 1 Footnote: Elements not listed shall not be intentionally added without the buyer's consent, except additions needed to finish steelmaking; Prevent scrap or other raw materials from introducing elements that could impair properties or intended use; unlisted elements must not be assumed zero.. Values in Mechanical Table 3 are applicable only for 0.30 mm≤t<3.00 mm; Mechanical properties for thicker steel strips shall be agreed upon during inquiry and ordering and cannot be directly extrapolated. Footnote a of Table 3 requires a choice between tensile indicators and hardness; Unless otherwise specified, tensile requirements apply. This page presents the alternatives separately and does not treat both as simultaneous guaranteed requirements.. For cold-rolled +CR, agree a tensile-property interval 150 MPa wide when tensile requirements are selected, or a hardness interval 50 HV wide when hardness is selected.; The outer boundaries of this table do not automatically generate actual ordering windows. Sampling, test methods, microstructure, dimensions, inspection, and other general delivery requirements shall also be verified in conjunction with EN10132-1 and applicable agreements; composition reverse-check does not replace full-item acceptance. This part covers cold-rolled narrow steel strip for quenching and tempering; strip supplied for heat treatment has thickness up to 6mm.; The +QT condition is within the range of 0.30 to 3.00mm, but the values in Table 3 are strictly limited to 0.30≤t<3.00mm.. +QT is used only for grades with explicitly listed values in Table 3.; The actual ordering range for tensile strength or hardness shall be agreed upon based on the 150MPa or 50HV width respectively; the entire optional interval in the table cannot be treated as a single supply guarantee.. +AC spheroidizing annealing condition may be adopted by agreement, but spheroidization and mechanical limits must be separately agreed upon.; +A/+LC values shall not be applied.. The +CR mechanical properties for 25Mn4 and CrMo grades must be agreed upon during ordering..
Verification notes
The complete original English Table 1 was transcribed; Table 2 product-analysis tolerances and Table 3 condition/thickness and alternative tensile-or-hardness requirements have been checkedPermitted product-analysis deviations
- C
- Permitted deviation
- 0.02
- Deviation direction
- Positive or negative deviation; only one direction is permitted for the same heat
- Applicable conditions
- Product analysis; For the same heat, deviations may be above the upper limit or below the lower limit, but not both; Heat-analysis limits remain unchanged
- Si
- Permitted deviation
- 0.03
- Deviation direction
- Only positive deviations are permitted
- Applicable conditions
- Product analysis; For the same heat, deviations may be above the upper limit or below the lower limit, but not both; Heat-analysis limits remain unchanged
- Mn
- Permitted deviation
- 0.05
- Deviation direction
- Positive or negative deviation; only one direction is permitted for the same heat
- Applicable conditions
- Product analysis; For the same heat, deviations may be above the upper limit or below the lower limit, but not both; Heat-analysis limits remain unchanged
- P
- Permitted deviation
- 0.005
- Deviation direction
- Only positive deviations are permitted
- Applicable conditions
- Product analysis; For the same heat, deviations may be above the upper limit or below the lower limit, but not both; Heat-analysis limits remain unchanged
- S
- Permitted deviation
- 0.005
- Deviation direction
- Only positive deviations are permitted
- Applicable conditions
- Product analysis; For the same heat, deviations may be above the upper limit or below the lower limit, but not both; Heat-analysis limits remain unchanged
- Cr
- Permitted deviation
- 0.03
- Deviation direction
- Positive or negative deviation; only one direction is permitted for the same heat
- Applicable conditions
- Product analysis; For the same heat, deviations may be above the upper limit or below the lower limit, but not both; Heat-analysis limits remain unchanged
- Mo
- Permitted deviation
- 0.02
- Deviation direction
- Positive or negative deviation; only one direction is permitted for the same heat
- Applicable conditions
- Product analysis; For the same heat, deviations may be above the upper limit or below the lower limit, but not both; Heat-analysis limits remain unchanged
- Ni
- Permitted deviation
- 0.04
- Deviation direction
- Positive or negative deviation; only one direction is permitted for the same heat
- Applicable conditions
- Product analysis; For the same heat, deviations may be above the upper limit or below the lower limit, but not both; Heat-analysis limits remain unchanged