brinell hardness number: meaning, definition, pronunciation and examples
Technical-LowTechnical/Engineering/Scientific
Quick answer
What does “brinell hardness number” mean?
A numerical scale representing the hardness of a material, determined by forcing a hard steel or carbide ball into the material under a specified load.
Audio
Pronunciation
Definition
Meaning and Definition
A numerical scale representing the hardness of a material, determined by forcing a hard steel or carbide ball into the material under a specified load.
In materials science, a standardized value indicating a material's resistance to permanent indentation, used to classify and compare materials like metals and alloys.
Dialectal Variation
British vs American Usage
Differences
No significant lexical differences. Spelling of related terms may follow regional norms (e.g., BrE 'metallurgy' vs. AmE 'metallurgy' [same]).
Connotations
Identical technical connotations in both dialects.
Frequency
Equally low-frequency outside specific engineering contexts in both regions.
Grammar
How to Use “brinell hardness number” in a Sentence
The [material] has a Brinell hardness number of [value].The Brinell hardness number is [value].Vocabulary
Collocations
Examples
Examples of “brinell hardness number” in a Sentence
verb
British English
- The lab will Brinell-test the sample tomorrow.
- The metal was Brinelled to ascertain its properties.
American English
- We need to Brinell test the prototype.
- They Brinelled the alloy and recorded the data.
adjective
British English
- The Brinell hardness figure was surprisingly low.
- We require a Brinell hardness certificate.
American English
- The Brinell hardness reading exceeded specs.
- Check the Brinell hardness specification on the drawing.
Usage
Meaning in Context
Business
Used in procurement or quality assurance specifications for metal components.
Academic
Central term in materials science, metallurgy, and mechanical engineering papers and textbooks.
Everyday
Virtually never used.
Technical
Primary register. Used in lab reports, material datasheets, engineering drawings, and manufacturing standards.
Vocabulary
Synonyms of “brinell hardness number”
Strong
Neutral
Weak
Vocabulary
Antonyms of “brinell hardness number”
Watch out
Common Mistakes When Using “brinell hardness number”
- Pronouncing 'Brinell' as /ˈbraɪnəl/ instead of /brɪˈnɛl/ or /brəˈnɛl/.
- Using it as a countable plural ('hardness numbers') without the definite article when referring to the general concept.
- Confusing it with Rockwell or Vickers hardness numbers without specifying the test method.
FAQ
Frequently Asked Questions
Brinell uses a spherical indenter and measures the diameter of the impression, suitable for coarse materials. Rockwell uses various indenters (like a diamond cone) and measures the depth of penetration, offering faster, direct reading results.
BHN is the standard abbreviation for Brinell Hardness Number.
Soft aluminum might be around 15-20 BHN, mild steel around 120-180 BHN, and hardened tool steel can exceed 600 BHN.
Its large indenter averages out local variations, making it ideal for testing materials with non-uniform structures like cast iron or forgings, giving a representative bulk hardness value.
A numerical scale representing the hardness of a material, determined by forcing a hard steel or carbide ball into the material under a specified load.
Brinell hardness number is usually technical/engineering/scientific in register.
Brinell hardness number: in British English it is pronounced /brɪˈnɛl ˈhɑːdnəs ˈnʌmbə/, and in American English it is pronounced /brəˈnɛl ˈhɑːrdnəs ˈnʌmbər/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think of a BRINe ball making a dent in a hard surface, and the number tells you how deep it went.
Conceptual Metaphor
HARDNESS IS RESISTANCE TO INVASION (The material's surface resists the invading ball; the number quantifies that resistance).
Practice
Quiz
What does the Brinell hardness number primarily measure?