X2CRNIMOCUN 25-6-3
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X2CrNiMoCuN 25-6-3 · EN 10088-1-2005
Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results
- Material category
- Stainless steel
- Subcategory
- Duplex stainless steel
- Material form
- Reference record
- Original record status
- Original standard verified
- Standard edition
- EN 10088-1-2005
- Table / clause
- Table 5, note a/b/c and asterisks, covering all 9 duplex corrosion-resistant steel grades
- PDF page references
- 1、3、13
Carbon-equivalent reference
Composition
| Element | Composition requirement |
|---|---|
| C | ≤ 0.03 (lower limit not stated) |
| Si | ≤ 0.7 (lower limit not stated) |
| Mn | ≤ 2.0 (lower limit not stated) |
| P | ≤ 0.035 (lower limit not stated) |
| S | ≤ 0.015 (lower limit not stated) |
| N | 0.2 ～ 0.3 |
| Cr | 24.0 ～ 26.0 |
| Cu | 1.0 ～ 2.5 |
| Mo | 3.0 ～ 4.0 |
| Ni | 6.0 ～ 8.0 |
Applicability and limitations
EN10088-1:2005 Table 5 duplex (austenitic-ferritic) corrosion-resistant stainless steels, heat analysis wt%; Official SIST adoption preview PDF13. ; Note a: unlisted elements must not be intentionally added without purchaser consent, except additions needed to finish the heat; Blanks shall not be filled with zero or guessed as residual limits. ; Note b: sulfur morphology/performance exceptions apply only to X3CrNiMoN27-5-2 and cannot be relaxed to .030 for all duplex steels. ; Note c: for X2CrNiMoN22-5-3 only, PRE>34 may be specified by agreement between both parties; the inequality is strict; PRE=Cr+3.3Mo+16N is the pitting resistance equivalent, which differs from carbon equivalents such as IIW. ; Asterisks in the original table indicate patented grades; no judgment is made on current patent validity or supply rights. ; A grade-listing standard does not independently establish delivery properties for a specific product, cold-heading suitability or the company’s ability to supply it; Adoptions of standards from other countries still require individual verification.
Verification notes
All 9 rows and footnotes in original Table 5 were visually checkedX2CrNiMoCuN 25-6-3 · EN 10250-4-1999
Original-source verification is incomplete; this is not a formal standard reference
- Material category
- Stainless steel
- Subcategory
- Duplex stainless steel
- Material form
- Reference record
- Verification status
- Reference data; original source not verified
Carbon-equivalent reference
Composition
| Element | Composition requirement |
|---|---|
| C | ≤ 0.03 (lower limit not stated) |
| Cr | 24 ～ 26 |
| Cu | 1 ～ 2.5 |
| Mn | ≤ 2 (lower limit not stated) |
| Mo | 2.7 ～ 4 |
| N | 0.15 ～ 0.3 |
| Ni | 5.5 ～ 7.5 |
| P | ≤ 0.035 (lower limit not stated) |
| S | ≤ 0.015 (lower limit not stated) |
| Si | ≤ 0.7 (lower limit not stated) |
Applicability and limitations
A match in the materials database does not establish suitability for cold heading or guarantee finished-product strength. Confirmation must consider wire condition, deformation, heat treatment and tests on actual parts.