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Rockwell scale

Rockwell hardness scale based on indentation hardness of a material with a 120° diamond spheroconical under 150 kgf
Thing measure Q502723
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Rockwell scale

Summary

Rockwell scale is a measure[1]. It has Wikipedia articles in 24 language editions, a strong signal of global cultural recognition.[2]

Key Facts

  • Rockwell scale's instance of is recorded as measure[3].
  • Rockwell scale is a type of ordinal scale[4].
  • Rockwell scale's Commons category is recorded as Rockwell hardness test[5].

Body

Definition and Type

Rockwell scale's instance of is recorded as measure[3]. It is a type of ordinal scale[4].

Why It Matters

Rockwell scale has Wikipedia articles in 24 language editions, a strong signal of global cultural recognition.[2] It is known by 37 alternative names across languages and contexts.[6]

References

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

Direct Wikidata claims

  1. [3] ↑ . wikidata.org.
  2. [4] ↑ . wikidata.org.
  3. [5] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikidata sitelinks. wikidata.org.
  2. [6] ↑ . 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). Rockwell scale. Retrieved May 3, 2026, from https://4ort.xyz/entity/rockwell-scale
MLA “Rockwell scale.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/rockwell-scale.
BibTeX @misc{4ortxyz_rockwell-scale_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Rockwell scale}}, year = {2026}, url = {https://4ort.xyz/entity/rockwell-scale}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Rockwell scale — https://4ort.xyz/entity/rockwell-scale (retrieved 2026-05-03)

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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. 6h ago · Nyuhn · 2026-07-10 view diff on Wikidata ↗
    P14541 → GhGJO
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/40849|batch #40849]]: ZGBK ID"
  2. 6w ago · Twofivesixbot bot · 2026-05-25 view diff on Wikidata ↗
    Instance of → measure
    Subclass of → —
    Aliases → —
    Subclass of → ordinal scale
    + 1 other property edited (see Wikidata diff for full list)
    "/* wbsetclaim-update-qualifiers:1||1|1 */ [[Property:P8189]]: 987007543783305171, mv to monolingual text names on J9U statements"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.