alloy
Let an agent handle alloys by composition, designation, properties, uses and safety.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify
Researched by: Claude
Purpose and description
Let an agent handle alloys by composition, designation, properties, uses and safety.
A metallic material made by combining a metal with other metals or elements, such as steel (iron and carbon), bronze, brass, solder, aluminium alloys and dental amalgam, to improve strength, corrosion resistance or other properties.
What it is for: Engineering, construction, tools, electronics, coins and medicine.
It can be identify alloys by designation; compare mechanical properties; choose alloys for corrosion or temperature; check hazards such as lead or mercury content.
Distinguishing features
Mixture based on a metal
Tailored properties
Standardised designations
Some contain hazardous elements
What it looks like
Metallic solids, colours ranging from grey steel to golden brass and bronze.
How it is recognised
Designations such as 304 stainless or 6061 aluminium
Colour and density
Pure metals are not alloys
Related models
is a kind of - category
is made from - component
includes - example
is designated by - standards
In practice
Families and kinds
steels and stainless steels
copper alloys such as bronze and brass
aluminium alloys
solders and fusible alloys
dental alloys and amalgam
Identifiers
UNS number letter plus five digits unified numbering system
Standards and regulation
EN 10027 steel designation
RoHS restrictions on lead in electronics
EU Mercury Regulation on dental amalgam
Failure modes and hazards
Corrosion and stress cracking
Lead and cadmium exposure
Wrong alloy substitution
Also called
+141
Where this came from
wikidata · CC0 1.0
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Identity Which alloy.
Designations identify.
Designation
Grade.
Designation
Designation.
- What is the alloy designation and composition? provenance
- Which standard defines it? provenance
Equivalents
Cross-reference.
Equivalents
Equivalent grades.
- What are equivalent grades in other standards? provenance
- Are they truly interchangeable? boundary
Properties Performance.
Properties guide selection.
Mechanical
Strength.
Mechanical
Mechanical properties.
- What are its strength, hardness and ductility? measurement
- In which temper or condition? definition
Corrosion
Resistance.
Corrosion
Corrosion resistance.
- How does it resist corrosion in this environment? provenance
- Is galvanic corrosion a risk with other metals? boundary
Safety Hazards.
Some alloys are hazardous.
Toxic elements
Lead, cadmium, mercury.
Toxic elements
Toxic elements.
- Does the alloy contain lead, cadmium or mercury? provenance
- What rules restrict its use? provenance
Fumes
Welding and soldering.
Fumes
Fumes.
- What fume controls are needed when welding or soldering it? provenance
- What does the safety data sheet say? provenance
Use Applications.
Uses depend on properties.
Selection
Choosing.
Selection
Alloy selection.
- Which alloy suits this application? action
- Should an engineer confirm the choice? action
Recycling
End of life.
Recycling
Recycling.
- How is this alloy recycled? provenance
- Must it be separated from other metals? boundary
What the second pass must settle
- Should alloy families be separate entries?
- How should designations be cross-referenced?
- How should hazardous alloys be flagged?