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invar

alloy of nickel and iron with low coefficient of thermal expansion
Thing iron_nickel_alloy Q898215
invar
U.S. Research center · Public Domain · Wikimedia
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invar

Summary

invar is an iron-nickel alloy[1]. invar draws 922 Wikipedia views per month (iron_nickel_alloy category, ranking #1 of 1).[2]

Key Facts

  • invar is credited with the discovery of Charles Édouard Guillaume[3].
  • invar's instance of is recorded as iron-nickel alloy[4].
  • invar is made of iron[5].
  • invar is made of nickel[6].
  • invar is made of manganese[7].
  • invar is made of carbon[8].
  • invar's Commons category is recorded as Invar[9].

Body

Definition and Type

invar's instance of is recorded as iron-nickel alloy[4].

Why It Matters

invar draws 922 Wikipedia views per month (iron_nickel_alloy category, ranking #1 of 1).[2] invar has Wikipedia articles in 22 language editions, a strong signal of global cultural recognition.[10] invar is known by 15 alternative names across languages and contexts.[11]

Related Entities

Charles Édouard Guillaume

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [4] ↑ . wikidata.org.
  2. [3] ↑ . wikidata.org.
  3. [5] ↑ . wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [10] ↑ . Wikidata sitelinks. wikidata.org.
  3. [11] ↑ . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). invar. Retrieved May 3, 2026, from https://4ort.xyz/entity/invar
MLA “invar.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/invar.
BibTeX @misc{4ortxyz_invar_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{invar}}, year = {2026}, url = {https://4ort.xyz/entity/invar}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): invar — https://4ort.xyz/entity/invar (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/invar · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 3d ago · Baum64 · 2026-08-23 view diff on Wikidata ↗
    Instance of → iron-nickel alloy
    Great russian encyclopedia online id (2017) → 2007192
    Local thumb → —
    Discoverer or inventor → Charles Édouard Guillaume
    + 4 other properties edited (see Wikidata diff for full list)
    "/* wbcreateclaim-create:1| */ [[Property:P279]]: [[Q1985623]], [[:toollabs:quickstatements/#/batch/269323|batch #269323]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.