--- title: "4730 — Nickel and cobalt alloys" description: "4730 in SAE AMS: material number 2.4360, also listed as S-NiCu 30 Fe. Category: Nickel and cobalt alloys. Designations recorded for this grade: 21." canonical: https://steelequivalents.com/materials/ams/4730 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/ams/4730.md cs: https://steelequivalents.com/cs/materiály/ams/4730.md de: https://steelequivalents.com/de/werkstoffe/ams/4730.md es: https://steelequivalents.com/es/materiales/ams/4730.md fr: https://steelequivalents.com/fr/matériaux/ams/4730.md hu: https://steelequivalents.com/hu/anyagok/ams/4730.md it: https://steelequivalents.com/it/materiali/ams/4730.md nl: https://steelequivalents.com/nl/materialen/ams/4730.md pl: https://steelequivalents.com/pl/materiały/ams/4730.md pt: https://steelequivalents.com/pt/materiais/ams/4730.md ru: https://steelequivalents.com/ru/материалы/ams/4730.md tr: https://steelequivalents.com/tr/malzemeler/ams/4730.md zh: https://steelequivalents.com/zh/材料/ams/4730.md ja: https://steelequivalents.com/ja/材料/ams/4730.md ar: https://steelequivalents.com/ar/المواد/ams/4730.md ko: https://steelequivalents.com/ko/재료/ams/4730.md pt-br: https://steelequivalents.com/pt-br/materiais/ams/4730.md hi: https://steelequivalents.com/hi/सामग्री/ams/4730.md content_hash: sha256:61f2c04a6df294199c5ae0a7a2e285aa9d0aaf0523a0bbc89047f426fc59c1c5 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/ams/4730 > Canonical URL: https://steelequivalents.com/materials/ams/4730 > 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. SAE AMS · United States / Aerospace · 21 designations # 4730 4730 is a designation in SAE AMS for the material held under material number 2.4360, also listed as S-NiCu 30 Fe. It is a material in the category Nickel and cobalt alloys. We list 21 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE, ASTM, BS, ISO, SAE AMS and GOST. - [*Material no.* **2.4360**](/materials/material-no/2.4360 "Material no.: 2.4360") - [*Category* **Nickel and cobalt alloys · 87 grades**](/categories/nickel-and-cobalt-alloys "Category: Nickel and cobalt alloys · 87 grades") - *Designations* **21** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=995131ab-bd88-4806-aa91-fdcd5dd2bca5&designation=7da32393-cfdb-4616-ad52-72b43cf089bf "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/ams/4730.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN NiCu 30 Fe This grade’s own name](/materials/din-en/nicu-30-fe "DIN / EN NiCu 30 Fe") - [UNS N04400 This grade’s own name · 3 grades on that route](/materials/uns/n04400 "UNS N04400") ## 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 21 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 - [NiCu 30 Fe This grade’s own name](/materials/din-en/nicu-30-fe "DIN / EN NiCu 30 Fe") - [S-NiCu 30 Fe This grade’s own name](/materials/din-en/s-nicu-30-fe "DIN / EN S-NiCu 30 Fe") UNS United States · 2 - [N04400 This grade’s own name](/materials/uns/n04400 "UNS N04400") - [N04405 Indicative](/materials/uns/n04405 "UNS N04405") AISI / SAE United States · 1 - [4544 Indicative](/materials/aisi-sae/4544 "AISI / SAE 4544") ASTM United States · 5 - [B 127 Indicative](/materials/astm/b-127 "ASTM B 127") - [B 164 Indicative](/materials/astm/b-164 "ASTM B 164") - [B 185 Indicative](/materials/astm/b-185 "ASTM B 185") - [B165 Indicative](/materials/astm/b165 "ASTM B165") - [B564 Indicative](/materials/astm/b564 "ASTM B564") BS United Kingdom · 2 - [3072-76 Indicative](/materials/bs/3072-76 "BS 3072-76") - [NA13 Indicative](/materials/bs/na13 "BS NA13") ISO International · 3 - [N04400 Indicative](/materials/uns/n04400 "ISO N04400") - [NiCu30 Indicative](/materials/iso/nicu30 "ISO NiCu30") - [NW4400 Indicative](/materials/iso/nw4400 "ISO NW4400") SAE AMS United States / Aerospace · 5 - [4574 Indicative tube](/materials/ams/4574 "SAE AMS 4574") - [4575 Indicative tube](/materials/ams/4575 "SAE AMS 4575") - [4674 Indicative bar rod](/materials/ams/4674 "SAE AMS 4674") - [4675 Indicative bar forging](/materials/ams/4675 "SAE AMS 4675") - **4730 Indicative wire** GOST Russia / CIS · 1 - [NMZhMts28-2,5-1,5 Indicative](/materials/gost/nmzhmts28-2-5-1-5 "GOST NMZhMts28-2,5-1,5") 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 Mn Iron — the balance, never listed by a standard — 2.5 % Ni — 63 % Cu — 31 % Mn — 2 % Traces & impurities · 1.5 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | ≤ 0.15 | | Si | ≤ 0.5 | | Mn | ≤ 2 | | S | 0.02 | | Ni | ≥ 63 | | Cu | 28–34 — Unusual | | Al | ≤ 0.5 | | Ti | ≤ 0.3 | | Fe | 1–2.5 | 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 | ≤0,15 | — | 0.150 | Max | | Al | ≤0,50 | — | 0.500 | Max | | Si | ≤0,50 | — | 0.500 | Max | | S | 0,02 | 0.020 | 0.020 | Exact | | Ti | ≤0,30 | — | 0.300 | Max | | Mn | ≤2,00 | — | 2.000 | Max | | Fe | 1,00-2,50 | 1.000 | 2.500 | Range | | Ni | ≥63,0 | 63.000 | — | Min | | Cu | 28,0-34,0 | 28.000 | 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 8,8 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. ## 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. [LC-NiCu 30 Fe 2.4361 Ni ≥63,0 · Cu 28,0-34,0 - ΔNi 0.00 - ΔCu 0.00 - 8 designations](/materials/din-en/lc-nicu-30-fe "LC-NiCu 30 Fe")[NiCu 30 Al 2.4375 Ni ≥63,0 · Cu 27,0-34,0 - ΔNi 0.00 - ΔCu 0.50 - 11 designations](/materials/din-en/nicu30al "NiCu 30 Al") ## 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=995131ab-bd88-4806-aa91-fdcd5dd2bca5&designation=7da32393-cfdb-4616-ad52-72b43cf089bf "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/ams/4730.pdf "Datasheet as PDF")