X2CRNIMOSI18-5-3
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X2CrNiMoSi18-5-3 · EN 10088-1-2005
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
- 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 | 1.4 ～ 2.0 |
| Mn | 1.2 ～ 2.0 |
| P | ≤ 0.035 (lower limit not stated) |
| S | ≤ 0.015 (lower limit not stated) |
| N | 0.05 ～ 0.1 |
| Cr | 18.0 ～ 19.0 |
| Mo | 2.5 ～ 3.0 |
| Ni | 4.5 ～ 5.2 |
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.