--- title: "Z7CNU15-05 — Stainless steels" description: "Z7CNU15-05 in AFNOR: material number 1.4542, also listed as X5CrNiCuNb16-4. Category: Stainless steels. Designations recorded for this grade: 48." canonical: https://steelequivalents.com/materials/afnor/z7cnu15-05 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/afnor/z7cnu15-05.md cs: https://steelequivalents.com/cs/materiály/afnor/z7cnu15-05.md de: https://steelequivalents.com/de/werkstoffe/afnor/z7cnu15-05.md es: https://steelequivalents.com/es/materiales/afnor/z7cnu15-05.md fr: https://steelequivalents.com/fr/matériaux/afnor/z7cnu15-05.md hu: https://steelequivalents.com/hu/anyagok/afnor/z7cnu15-05.md it: https://steelequivalents.com/it/materiali/afnor/z7cnu15-05.md nl: https://steelequivalents.com/nl/materialen/afnor/z7cnu15-05.md pl: https://steelequivalents.com/pl/materiały/afnor/z7cnu15-05.md pt: https://steelequivalents.com/pt/materiais/afnor/z7cnu15-05.md ru: https://steelequivalents.com/ru/материалы/afnor/z7cnu15-05.md tr: https://steelequivalents.com/tr/malzemeler/afnor/z7cnu15-05.md zh: https://steelequivalents.com/zh/材料/afnor/z7cnu15-05.md ja: https://steelequivalents.com/ja/材料/afnor/z7cnu15-05.md ar: https://steelequivalents.com/ar/المواد/afnor/z7cnu15-05.md ko: https://steelequivalents.com/ko/재료/afnor/z7cnu15-05.md pt-br: https://steelequivalents.com/pt-br/materiais/afnor/z7cnu15-05.md hi: https://steelequivalents.com/hi/सामग्री/afnor/z7cnu15-05.md content_hash: sha256:f4ec03d41576838602782f19177e4a6b9c7c09fdd5eed739e6ce2cad10491e98 generated: 2026-09-24 --- > **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/afnor/z7cnu15-05 > Canonical URL: https://steelequivalents.com/materials/afnor/z7cnu15-05 > 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. AFNOR · France · 48 designations # Z7CNU15-05 Z7CNU15-05 is a designation in AFNOR for the material held under material number 1.4542, also listed as X5CrNiCuNb16-4. It is a material in the category Stainless steels. We list 48 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE, ASTM, AFNOR, SAE AMS, JIS and GOST. - [*Material no.* **1.4542**](/materials/material-no/1.4542 "Material no.: 1.4542") - [*Category* **Stainless steels · 468 grades**](/categories/stainless-steels "Category: Stainless steels · 468 grades") - *Designations* **48** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=b507b357-ab77-4356-b492-a71ac658f57f&designation=2d0e4cd8-d796-4d98-8658-d082a1c0d435 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/afnor/z7cnu15-05.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN X5CrNiCuNb16-4 This grade’s own name](/materials/din-en/x5crnicunb16-4 "DIN / EN X5CrNiCuNb16-4") - [UNS S17400 This grade’s own name · 3 grades on that route](/materials/uns/s17400 "UNS S17400") - [AISI / SAE 17-4 PH This grade’s own name · 2 grades on that route](/materials/aisi-sae/17-4ph "AISI / SAE 17-4 PH") - [ASTM A 564 630 This grade’s own name](/materials/astm/a-564-630 "ASTM A 564 630") - [AFNOR Z7CNU17-04 This grade’s own name · 2 grades on that route](/materials/afnor/z7cnu17-04 "AFNOR Z7CNU17-04") ## 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 48 designations · 8 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 · 2 - [1.4542 Indicative](/materials/material-no/1.4542 "DIN / EN 1.4542") - [X5CrNiCuNb16-4 This grade’s own name](/materials/din-en/x5crnicunb16-4 "DIN / EN X5CrNiCuNb16-4") UNS United States · 1 - [S17400 This grade’s own name](/materials/uns/s17400 "UNS S17400") AISI / SAE United States · 4 - [17-4 PH This grade’s own name](/materials/aisi-sae/17-4ph "AISI / SAE 17-4 PH") - [630 Indicative](/materials/aisi-sae/630 "AISI / SAE 630") - [AISI630 This grade’s own name](/materials/aisi-sae/aisi630 "AISI / SAE AISI630") - [S17400 Indicative](/materials/uns/s17400 "AISI / SAE S17400") ASTM United States · 17 - [17-4 PH Indicative](/materials/aisi-sae/17-4ph "ASTM 17-4 PH") - [A 484 Indicative](/materials/astm/a484 "ASTM A 484") - [A 564 Indicative](/materials/astm/a564 "ASTM A 564") - [A 564 630 This grade’s own name](/materials/astm/a-564-630 "ASTM A 564 630") - [A 564 T 630 Indicative](/materials/astm/a-564-t-630 "ASTM A 564 T 630") - [A 693 Indicative](/materials/astm/a693 "ASTM A 693") - [A1028 Indicative](/materials/astm/a1028 "ASTM A1028") - [A56 Indicative](/materials/astm/a56 "ASTM A56") - [A564 Grade 630 Indicative](/materials/astm/a564-grade-630 "ASTM A564 Grade 630") - [A564 Type 630 Indicative](/materials/astm/a564-type-630 "ASTM A564 Type 630") - [A705 Indicative](/materials/astm/a705 "ASTM A705") - [A982 Indicative](/materials/astm/a982 "ASTM A982") - [F593 Indicative](/materials/astm/f593 "ASTM F593") - [F594 Indicative](/materials/astm/f594 "ASTM F594") - [F738 Indicative](/materials/astm/f738 "ASTM F738") - [F836 Indicative](/materials/astm/f836 "ASTM F836") - [F899 Indicative](/materials/astm/f899 "ASTM F899") AFNOR France · 8 - [17-4 DP Indicative](/materials/afnor/17-4-dp "AFNOR 17-4 DP") - [174 PH Indicative](/materials/aisi-sae/17-4ph "AFNOR 174 PH") - [X17U4 Indicative](/materials/afnor/x17u4 "AFNOR X17U4") - [Z67CNU15.05 Indicative](/materials/afnor/z67cnu15-05 "AFNOR Z67CNU15.05") - [Z6CNU1704 Indicative](/materials/afnor/z6cnu1704 "AFNOR Z6CNU1704") - **Z7CNU15-05 This grade’s own name** - [Z7CNU16-04 Indicative](/materials/afnor/z7cnu16-04 "AFNOR Z7CNU16-04") - [Z7CNU17-04 This grade’s own name](/materials/afnor/z7cnu17-04 "AFNOR Z7CNU17-04") SAE AMS United States / Aerospace · 6 - [5604 Indicative plate sheet strip](/materials/ams/5604 "SAE AMS 5604") - [5622 Indicative bar forging ring tubing wire](/materials/ams/5622 "SAE AMS 5622") - [5642 Indicative bar](/materials/ams/5642 "SAE AMS 5642") - [5643 Indicative bar](/materials/ams/5643 "SAE AMS 5643") - [5825 Indicative](/materials/ams/5825 "SAE AMS 5825") - [5827 Indicative](/materials/ams/5827 "SAE AMS 5827") JIS Japan · 4 - [SCS 24 This grade’s own name](/materials/jis/scs24 "JIS SCS 24") - [SUS 630 This grade’s own name](/materials/jis/sus-630 "JIS SUS 630") - [SUS 630FB Indicative](/materials/jis/sus630fb "JIS SUS 630FB") - [SUS F 630 Indicative](/materials/jis/susf630 "JIS SUS F 630") GOST Russia / CIS · 6 - [05Ch16N4D2B Indicative](/materials/gost/05ch16n4d2b "GOST 05Ch16N4D2B") - [05Х16Н4Д2Б Indicative](/materials/gost/05kh16n4d2b "GOST 05Х16Н4Д2Б") - [07Ch14N4DB Indicative](/materials/gost/07ch14n4db "GOST 07Ch14N4DB") - [07Ch16N4D4B-Sh Indicative](/materials/gost/07ch16n4d4b-sh "GOST 07Ch16N4D4B-Sh") - [07Х14Н4ДБ Indicative](/materials/gost/07kh14n4db "GOST 07Х14Н4ДБ") - [07Х16Н4Д4Б-Ш Indicative](/materials/gost/07kh16n4d4b-sh "GOST 07Х16Н4Д4Б-Ш") Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 9 elements on file · weight % What this alloy is Fe Cr Ni Cu Iron — the balance, never listed by a standard — 73.1 % Cr — 16 % Ni — 4 % Cu — 4 % Traces & impurities · 2.9 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | ≤ 0.07 | | Si | ≤ 0.7 | | Mn | ≤ 1.5 | | P | 0.04 | | S | 0.015 | | Cr | 15–17 | | Mo | ≤ 0.6 | | Ni | 3–5 | | Cu | 3–5 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Molybdenum Nickel Copper 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 | ≤0,07 | — | 0.070 | Max | | Si | ≤0,70 | — | 0.700 | Max | | P | 0,04 | 0.040 | 0.040 | Exact | | S | 0,015 | 0.015 | 0.015 | Exact | | Cr | 15,0-17,0 | 15.000 | 17.000 | Range | | Mn | ≤1,50 | — | 1.500 | Max | | Ni | 3,00-5,00 | 3.000 | 5.000 | Range | | Cu | 3,00-5,00 | 3.000 | 5.000 | Range | | Mo | ≤0,60 | — | 0.600 | Max | - 5xC-0,45 - 5xC-0,45 - 5xC-0,45 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 7,8 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 · 4 values By delivery state**Solution annealed** source `steelnumber` | Delivery state | HB | |---|---| | Solution annealed | 360 | By delivery state**no delivery state stated** source `steeljis` | Delivery state | Rm N/mm² | Re N/mm² | A% | |---|---|---|---| | Casting Precipitation hardening treatment | 850 – 1240 | 665 – 1030 | 6 – 10 | 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 Cr / Ni 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. [X2CrMnNiN17-7-5 1.4371 Cr 16,0-17,0 · Ni 3,50-5,50 - ΔCr 0.50 - ΔNi 0.50 - 5 designations](/materials/din-en/x2crmnnin17-7-5 "X2CrMnNiN17-7-5")[1.4418 1.4418 Cr 15,0-17,0 · Ni 4,00-6,00 - ΔCr 0.00 - ΔNi 1.00 - 8 designations](/materials/material-no/1.4418 "1.4418")[X 5 CrNiMo 16 5 1.4405 Cr 15,0-16,5 · Ni 4,50-6,00 - ΔCr 0.25 - ΔNi 1.25 - 1 designations](/materials/din-en/x-5-crnimo-16-5 "X 5 CrNiMo 16 5") ## 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=b507b357-ab77-4356-b492-a71ac658f57f&designation=2d0e4cd8-d796-4d98-8658-d082a1c0d435 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/afnor/z7cnu15-05.pdf "Datasheet as PDF")