Metals & alloys · Ferrous alloys
AISI H21
AISI H21 is a reference-depth tungsten hot-work tool steel record for classification, search, comparison and later condition-specific enrichment.
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01
Overview
This entry identifies and classifies the material. Verified composition and engineering properties have not yet been added.
- Material class
- Metals & alloys
- Category
- Ferrous alloys
- Family
- Tungsten hot-work tool steel
- Product forms
- Bar/rod, Sheet/plate
02
Properties and conditions
Engineering properties
No verified engineering-property values are listed for this material.
Conditions
H21
Condition embedded in the canonical material designation.
03
Processing and use
Processing
- Properties depend on grade, condition, product form and processing route.
Applications
- Tooling, dies, bearings or high-wear components
Selection considerations
- Reference-depth identity record. Verify the governing specification and condition-specific data before engineering use.
Open in an analysis tool
04
Standards and related materials
Standards and designations
No standard designation is listed.
Other names
- AISI H21
05
Sources and context
Sources
- ASM International and public alloy designation referencesIdentity reference
- NASA materials selection resourcesApplication reference
- U.S. Department of Energy lightweight materials programApplication reference
- U.S. Department of Energy critical materials programStrategic reference
Confirm the applicable specification, product form and condition before using values for design or procurement.
Supply and sustainability
Availability depends on grade, product form, heat-treatment condition and certification route.
Segregated recycling and alloy-control practices improve recovery quality.
Strategic context
Included in a strategic or critical-material collection; supply risk depends on grade, source and jurisdiction.
Critical inputs: AISI H21
Basis: Public critical-mineral and energy-material assessments should be checked for the target jurisdiction and year.