--- title: "2.4375 — Nickel and cobalt alloys" description: "2.4375 is the material number of the grade also listed as NiCu 30 Al. Category: Nickel and cobalt alloys. Designations recorded for this grade: 11." canonical: https://steelequivalents.com/materials/material-no/2.4375 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/material-no/2.4375.md cs: https://steelequivalents.com/cs/materiály/číslo-materiálu/2.4375.md de: https://steelequivalents.com/de/werkstoffe/werkstoff-nr/2.4375.md es: https://steelequivalents.com/es/materiales/número-de-material/2.4375.md fr: https://steelequivalents.com/fr/matériaux/numéro-de-matériau/2.4375.md hu: https://steelequivalents.com/hu/anyagok/anyagszám/2.4375.md it: https://steelequivalents.com/it/materiali/numero-materiale/2.4375.md nl: https://steelequivalents.com/nl/materialen/materiaalnummer/2.4375.md pl: https://steelequivalents.com/pl/materiały/numer-materiału/2.4375.md pt: https://steelequivalents.com/pt/materiais/número-do-material/2.4375.md ru: https://steelequivalents.com/ru/материалы/номер-материала/2.4375.md tr: https://steelequivalents.com/tr/malzemeler/malzeme-numarası/2.4375.md zh: https://steelequivalents.com/zh/材料/材料编号/2.4375.md ja: https://steelequivalents.com/ja/材料/材料番号/2.4375.md ar: https://steelequivalents.com/ar/المواد/رقم-المادة/2.4375.md ko: https://steelequivalents.com/ko/재료/재료번호/2.4375.md pt-br: https://steelequivalents.com/pt-br/materiais/número-do-material/2.4375.md hi: https://steelequivalents.com/hi/सामग्री/सामग्री-संख्या/2.4375.md content_hash: sha256:55d689bb4b0fcb86865c69aad63443ac20dbdc2cc2b8282c2b78f9cb4aa99dab 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/material-no/2.4375 > Canonical URL: https://steelequivalents.com/materials/material-no/2.4375 > 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. Material number · Europe · 11 designations # 2.4375 2.4375 is the material number of the grade also listed as NiCu 30 Al. It is a material in the category Nickel and cobalt alloys. We list 11 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE, ASTM, BS, ISO and GB. - ***Material no.* **2.4375**** - [*Category* **Nickel and cobalt alloys · 87 grades**](/categories/nickel-and-cobalt-alloys "Category: Nickel and cobalt alloys · 87 grades") - *Designations* **11** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=96a1b7b7-f70c-4390-ad32-6cce50c506f6 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/material-no/2.4375.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN NiCu 30 Al This grade’s own name · 2 grades on that route](/materials/din-en/nicu30al "DIN / EN NiCu 30 Al") - [UNS N05500 This grade’s own name](/materials/uns/n05500 "UNS N05500") ## About Nickel and cobalt alloys Nickel and cobalt alloys are metallic materials whose properties are developed through nickel-, cobalt-, or combined alloying systems. They are characterised by strong resistance to corrosion, oxidation, wear, and loss of strength at elevated temperatures, making them suitable for turbine components, chemical-processing equipment, and other demanding high-temperature applications. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Also known as 11 designations · 7 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 · 1 - [NiCu 30 Al This grade’s own name](/materials/din-en/nicu30al "DIN / EN NiCu 30 Al") UNS United States · 1 - [N05500 This grade’s own name](/materials/uns/n05500 "UNS N05500") AISI / SAE United States · 1 - [4676 Indicative](/materials/aisi-sae/4676 "AISI / SAE 4676") ASTM United States · 1 - [B 865 Indicative](/materials/astm/b-865 "ASTM B 865") BS United Kingdom · 3 - [3072-76 Indicative](/materials/bs/3072-76 "BS 3072-76") - [3146 Indicative](/materials/bs/3146 "BS 3146") - [NA18 Indicative](/materials/bs/na18 "BS NA18") ISO International · 2 - [N05500 Indicative](/materials/uns/n05500 "ISO N05500") - [NW5500 Indicative](/materials/iso/nw5500 "ISO NW5500") GB China · 2 - [H05500 Indicative](/materials/gb/h05500 "GB H05500") - [NS6500 Indicative](/materials/gb/ns6500 "GB NS6500") 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 Ni Cu Al Iron — the balance, never listed by a standard — 0.8 % Ni — 63 % Cu — 30.5 % Al — 2.9 % Traces & impurities · 2.9 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | ≤ 0.2 | | Si | ≤ 0.5 | | Mn | ≤ 1.5 | | S | 0.015 | | Ni | ≥ 63 | | Cu | 27–34 — Unusual | | Al | 2.2–3.5 | | Ti | 0.3–1 | | Fe | 0.5–2 | Carbon Silicon Manganese Sulfur Nickel Copper Aluminium Titanium Iron 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 | ≤0,20 | — | 0.200 | Max | | Al | 2,20-3,50 | 2.200 | 3.500 | Range | | Si | ≤0,50 | — | 0.500 | Max | | S | 0,015 | 0.015 | 0.015 | Exact | | Ti | 0,30-1,00 | 0.300 | 1.000 | Range | | Mn | ≤1,50 | — | 1.500 | Max | | Fe | 0,50-2,00 | 0.500 | 2.000 | Range | | Ni | ≥63,0 | 63.000 | — | Min | | Cu | 27,0-34,0 | 27.000 | 34.000 | 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 Not enough recorded composition to predict a transformation temperature for this grade — missing: Ni, Cr, Mo. ## Physical & mechanical properties Density 8,46 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. ## Similar grades — and why Selection rule, stated so you can disagree with it: same number class 2.4, a shared category, and a published range for Ni / Cu 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. [NiCu 30 Fe 2.4360 Ni ≥63,0 · Cu 28,0-34,0 - ΔNi 0.00 - ΔCu 0.50 - 21 designations](/materials/din-en/nicu-30-fe "NiCu 30 Fe")[LC-NiCu 30 Fe 2.4361 Ni ≥63,0 · Cu 28,0-34,0 - ΔNi 0.00 - ΔCu 0.50 - 8 designations](/materials/din-en/lc-nicu-30-fe "LC-NiCu 30 Fe") ## 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=96a1b7b7-f70c-4390-ad32-6cce50c506f6 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/material-no/2.4375.pdf "Datasheet as PDF")