--- title: "N08925 — Stainless steels" description: "N08925 in UNS: material number 1.4529, also listed as X1NiCrMoCuN25-20-7. Category: Stainless steels. Designations recorded for this grade: 28." canonical: https://steelequivalents.com/materials/uns/n08925 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/uns/n08925.md cs: https://steelequivalents.com/cs/materiály/uns/n08925.md de: https://steelequivalents.com/de/werkstoffe/uns/n08925.md es: https://steelequivalents.com/es/materiales/uns/n08925.md fr: https://steelequivalents.com/fr/matériaux/uns/n08925.md hu: https://steelequivalents.com/hu/anyagok/uns/n08925.md it: https://steelequivalents.com/it/materiali/uns/n08925.md nl: https://steelequivalents.com/nl/materialen/uns/n08925.md pl: https://steelequivalents.com/pl/materiały/uns/n08925.md pt: https://steelequivalents.com/pt/materiais/uns/n08925.md ru: https://steelequivalents.com/ru/материалы/uns/n08925.md tr: https://steelequivalents.com/tr/malzemeler/uns/n08925.md zh: https://steelequivalents.com/zh/材料/uns/n08925.md ja: https://steelequivalents.com/ja/材料/uns/n08925.md ar: https://steelequivalents.com/ar/المواد/uns/n08925.md ko: https://steelequivalents.com/ko/재료/uns/n08925.md pt-br: https://steelequivalents.com/pt-br/materiais/uns/n08925.md hi: https://steelequivalents.com/hi/सामग्री/uns/n08925.md content_hash: sha256:6a814bc4978d08144267826bab19840ada29c5cef9e5cc00698d7e1402a7eb6b generated: 2026-09-22 --- > **Machine-readable Markdown rendering.** This is a Markdown representation of a web page, > served for AI agents and crawlers as a token-efficient alternative to the full HTML. > Full interactive HTML version: https://steelequivalents.com/materials/uns/n08925 > Canonical URL: https://steelequivalents.com/materials/uns/n08925 > Available languages: en, cs, de, es, fr, hu, it, nl, pl, pt, ru, tr, zh, ja, ar, ko, pt-br, hi > Change detection: `content_hash` is the SHA-256 of this document's Markdown body — everything > below this block, whitespace-trimmed, excluding the front-matter. Compare it to detect a real > content change; `generated` moves on every render and is not a change signal. UNS · United States · 28 designations # N08925 N08925 is a designation in UNS for the material held under material number 1.4529, also listed as X1NiCrMoCuN25-20-7. It is a material in the category Stainless steels. We list 28 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE and ASTM. - [*Material no.* **1.4529**](/materials/material-no/1.4529 "Material no.: 1.4529") - [*Category* **Stainless steels · 468 grades**](/categories/stainless-steels "Category: Stainless steels · 468 grades") - *Designations* **28** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=6ffa0398-9a16-432e-b350-e06e46ce8258&designation=fd6ee3ab-e59d-4fb6-b8ef-61a2fda2030b "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/uns/n08925.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN X1NiCrMoCuN25-20-7 This grade’s own name](/materials/din-en/x1nicrmocun25-20-7 "DIN / EN X1NiCrMoCuN25-20-7") - [UNS N08367 This grade’s own name · 2 grades on that route](/materials/uns/n08367 "UNS N08367") ## About Stainless steels Stainless steels are corrosion-resistant alloy steels whose chromium content promotes a protective passive surface film. They are used for equipment, structures and components exposed to moisture, chemicals or hygienic service, with different alloy compositions selected for corrosion resistance, strength, formability or weldability. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Also known as 28 designations · 4 standards · nothing hidden This grade’s own name recorded in our sources as this grade’s own designation under that standard. Indicative taken from a published cross-reference table; a close match, not a guarantee of interchangeability. Verify against the mill certificate before ordering. Withdrawn designation no longer current — a separate column from the two above, so a name can be same grade and withdrawn at once. DIN / EN Europe · 3 - [NO8367 Indicative](/materials/din-en/no8367 "DIN / EN NO8367") - [X 1 NiCrMoCuN 25 20 6 This grade’s own name Withdrawn](/materials/din-en/x-1-nicrmocun-25-20-6 "DIN / EN X 1 NiCrMoCuN 25 20 6") - [X1NiCrMoCuN25-20-7 This grade’s own name](/materials/din-en/x1nicrmocun25-20-7 "DIN / EN X1NiCrMoCuN25-20-7") UNS United States · 4 - [N08367 This grade’s own name](/materials/uns/n08367 "UNS N08367") - **N08925 This grade’s own name** - [N08926 This grade’s own name](/materials/uns/n08926 "UNS N08926") - [S \_ 31254 Indicative](/materials/uns/s31254 "UNS S _ 31254") AISI / SAE United States · 3 - [N08926 Indicative](/materials/uns/n08926 "AISI / SAE N08926") - [NO8367 Indicative](/materials/din-en/no8367 "AISI / SAE NO8367") - [UNS N08925 Indicative](/materials/aisi-sae/uns-n08925 "AISI / SAE UNS N08925") ASTM United States · 18 - [26-3 Mo Indicative](/materials/astm/26-3-mo "ASTM 26-3 Mo") - [6 Mo Indicative](/materials/astm/6-mo "ASTM 6 Mo") - [A182 Indicative](/materials/aisi-sae/a182 "ASTM A182") - [A240 Indicative](/materials/astm/a240 "ASTM A240") - [A249 Indicative](/materials/astm/a249 "ASTM A249") - [A276 Indicative](/materials/astm/a276 "ASTM A276") - [A312 Indicative](/materials/astm/a312 "ASTM A312") - [A479 Indicative](/materials/astm/a479 "ASTM A479") - [B366 Indicative](/materials/astm/b366 "ASTM B366") - [B462 Indicative](/materials/astm/b462 "ASTM B462") - [B472 Indicative](/materials/astm/b472 "ASTM B472") - [B564 Indicative](/materials/astm/b564 "ASTM B564") - [B675 Indicative](/materials/astm/b675 "ASTM B675") - [B676 Indicative](/materials/astm/b676 "ASTM B676") - [B688 Indicative](/materials/astm/b688 "ASTM B688") - [B690 Indicative](/materials/astm/b690 "ASTM B690") - [B691 Indicative](/materials/astm/b691 "ASTM B691") - [B804 Indicative](/materials/astm/b804 "ASTM B804") Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 10 elements on file · weight % What this alloy is Fe Ni Cr Mo Iron — the balance, never listed by a standard — 45.7 % Ni — 25 % Cr — 20 % Mo — 6.5 % Traces & impurities · 2.8 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | ≤ 0.02 | | Si | ≤ 0.5 | | Mn | ≤ 1 | | P | 0.03 | | S | 0.01 | | Cr | 19–21 | | Mo | 6–7 — Unusual | | Ni | 24–26 — Unusual | | Cu | 0.5–1.5 | | N | 0.15–0.25 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Molybdenum Nickel Copper Nitrogen 0.01 % 0.1 % 1 % 10 % 100 % The scale is logarithmic, not the element’s raw share of the alloy — the only honest way to fit 0.01 % and 100 % in one picture, and it means every value here can be compared with every other. | Element | As published source text, verbatim | Min% by weight | Max% by weight | Bound | |---|---|---|---|---| | C | ≤0,02 | — | 0.020 | Max | | N | 0,15-0,25 | 0.150 | 0.250 | Range | | Si | ≤0,50 | — | 0.500 | Max | | P | 0,03 | 0.030 | 0.030 | Exact | | S | 0,01 | 0.010 | 0.010 | Exact | | Cr | 19,0-21,0 | 19.000 | 21.000 | Range | | Mn | ≤1,00 | — | 1.000 | Max | | Ni | 24,0-26,0 | 24.000 | 26.000 | Range | | Cu | 0,50-1,50 | 0.500 | 1.500 | Range | | Mo | 6,00-7,00 | 6.000 | 7.000 | Range | The published column is the source string byte-for-byte, decimal comma and all; Min and Max are the parsed bounds. Elements not listed have no value on file — they are omitted, never inferred. ## Predicted transformation temperatures This grade's composition falls outside the published model's validated range (a low-alloy composition window), so no transformation temperature is predicted here. ## Physical & mechanical properties Density 8 g/cm³ Exact An absent property means we hold no value for it — it is left out rather than estimated, interpolated from a neighbouring grade, or filled from a handbook. It does not mean the property is undefined for the material. ## Properties by condition 2 conditions · 2 values By delivery state**Soft annealed** source `steelnumber` | Delivery state | HB | |---|---| | Soft annealed | 250 | By delivery state**Solution annealed** source `steelnumber` | Delivery state | HB | |---|---| | Solution annealed | 220 | Every figure holds only for the condition on its own row. Values are never merged across conditions or across sources, never averaged, and never interpolated between two rows. An em dash means no value on file — never zero. Figures are converted to the unit in the column header; the source’s own wording is kept and shown where the two differ. ## Similar grades — and why Selection rule, stated so you can disagree with it: same number class 1.4, a shared category, and a published range for Ni / Cr that overlaps this grade’s. These are neighbours in composition space — they are not equivalents, and none is claimed to be interchangeable with this grade. [1.4539 1.4539 Ni 24,0-26,0 · Cr 19,0-21,0 - ΔNi 0.00 - ΔCr 0.00 - 23 designations](/materials/material-no/1.4539 "1.4539") ## Looking for this grade under another name? Search the catalogue by designation, material number or composition — every name on this page is itself a way in. [Search](/search "Steel grade search")[Inquiry](/inquiry?material=6ffa0398-9a16-432e-b350-e06e46ce8258&designation=fd6ee3ab-e59d-4fb6-b8ef-61a2fda2030b "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/uns/n08925.pdf "Datasheet as PDF")