--- title: "B719 — Nickel and cobalt alloys" description: "B719 in ASTM: material number 2.4608, also listed as NiCr26MoW. Category: Nickel and cobalt alloys. Designations recorded for this grade: 7." canonical: https://steelequivalents.com/materials/astm/b719 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/astm/b719.md cs: https://steelequivalents.com/cs/materiály/astm/b719.md de: https://steelequivalents.com/de/werkstoffe/astm/b719.md es: https://steelequivalents.com/es/materiales/astm/b719.md fr: https://steelequivalents.com/fr/matériaux/astm/b719.md hu: https://steelequivalents.com/hu/anyagok/astm/b719.md it: https://steelequivalents.com/it/materiali/astm/b719.md nl: https://steelequivalents.com/nl/materialen/astm/b719.md pl: https://steelequivalents.com/pl/materiały/astm/b719.md pt: https://steelequivalents.com/pt/materiais/astm/b719.md ru: https://steelequivalents.com/ru/материалы/astm/b719.md tr: https://steelequivalents.com/tr/malzemeler/astm/b719.md zh: https://steelequivalents.com/zh/材料/astm/b719.md ja: https://steelequivalents.com/ja/材料/astm/b719.md ar: https://steelequivalents.com/ar/المواد/astm/b719.md ko: https://steelequivalents.com/ko/재료/astm/b719.md pt-br: https://steelequivalents.com/pt-br/materiais/astm/b719.md hi: https://steelequivalents.com/hi/सामग्री/astm/b719.md content_hash: sha256:4482ef51cf0ab5858728b445e274f42cf9bb2a8e1c7c02402edccfd204bd18d8 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/astm/b719 > Canonical URL: https://steelequivalents.com/materials/astm/b719 > 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. ASTM · United States · 7 designations # B719 B719 is a designation in ASTM for the material held under material number 2.4608, also listed as NiCr26MoW. It is a material in the category Nickel and cobalt alloys. We list 7 designations recorded for this grade, in the standards DIN / EN, UNS, ASTM and SAE AMS. - [*Material no.* **2.4608**](/materials/material-no/2.4608 "Material no.: 2.4608") - [*Category* **Nickel and cobalt alloys · 87 grades**](/categories/nickel-and-cobalt-alloys "Category: Nickel and cobalt alloys · 87 grades") - *Designations* **7** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=076fd4ed-b3e5-446b-b2bd-04496e4028ca&designation=6c445bbc-f6df-4bab-ad00-6fba066a50bd "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/astm/b719.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN NiCr26MoW This grade’s own name](/materials/din-en/nicr26mow "DIN / EN NiCr26MoW") - [UNS N06333 This grade’s own name](/materials/uns/n06333 "UNS N06333") ## 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 7 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 · 1 - [NiCr26MoW This grade’s own name](/materials/din-en/nicr26mow "DIN / EN NiCr26MoW") UNS United States · 1 - [N06333 This grade’s own name](/materials/uns/n06333 "UNS N06333") ASTM United States · 4 - [B718 Indicative](/materials/astm/b718 "ASTM B718") - **B719 Indicative** - [B722 Indicative](/materials/astm/b722 "ASTM B722") - [B723 Indicative](/materials/astm/b723 "ASTM B723") SAE AMS United States / Aerospace · 1 - [5593 Indicative](/materials/ams/5593 "SAE AMS 5593") Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 12 elements on file · weight % What this alloy is Fe Ni Cr Mo Iron — the balance, never listed by a standard — 16 % Ni — 45.5 % Cr — 25 % Mo — 3.3 % Traces & impurities · 10.2 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 0.03–0.08 | | Si | 0.7–1.5 — Unusual | | Mn | ≤ 2 | | P | 0.02 | | S | 0.03 | | Cr | 24–26 | | Mo | 2.5–4 | | Ni | 44–47 | | W | 2.5–4 | | Co | 2.5–4 | | Cu | ≤ 0.5 | | Fe | Balance | Carbon Silicon Manganese Phosphorus Sulfur Chromium Molybdenum Nickel Tungsten Cobalt Copper 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 | 0,03-0,08 | 0.030 | 0.080 | Range | | Si | 0,70-1,50 | 0.700 | 1.500 | Range | | P | 0,02 | 0.020 | 0.020 | Exact | | S | 0,03 | 0.030 | 0.030 | Exact | | Cr | 24,0-26,0 | 24.000 | 26.000 | Range | | Mn | ≤2,00 | — | 2.000 | Max | | Fe | Rest/Bal. | 10.870 | 23.720 | Balance | | Co | 2,50-4,00 | 2.500 | 4.000 | Range | | Ni | 44,0-47,0 | 44.000 | 47.000 | Range | | Cu | ≤0,50 | — | 0.500 | Max | | Mo | 2,50-4,00 | 2.500 | 4.000 | Range | | W | 2,50-4,00 | 2.500 | 4.000 | 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 7,85 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 / 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. [NiCr28FeSiCe 2.4889 Ni ≥45,0 · Cr 26,0-29,0 - ΔNi 0.50 - ΔCr 2.50 - 1 designations](/materials/din-en/nicr28fesice "NiCr28FeSiCe") ## 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=076fd4ed-b3e5-446b-b2bd-04496e4028ca&designation=6c445bbc-f6df-4bab-ad00-6fba066a50bd "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/astm/b719.pdf "Datasheet as PDF")