Material Standards
Material standards are purchasing and inspection records linked to material records. They are intentionally separate from the material property cards.
The public standards catalog can link only to public material IDs and every public standard must have explicit open redistribution rights. Licensed EN tables and uncleared GOST extracts remain in the private overlay.
What a standard record contains
A standard detail page can include:
- Scope
- Minimum summary
- Chemical composition limits
- Row-level mechanical requirements
- Ordering and inspection requirements
- Applicable product forms
- Linked material records
- Source and validity metadata
- PDF summary export
Minimum summary table
The Minimum summary table uses one fixed layout across standards:
- Minimum tensile strength, Rm
- Minimum yield strength, Rp0.2
- Minimum elongation
- Minimum typical hardness
- Product standards
- Product families
- Tempers
- Mechanical rows
If a record has no value for a row, the value is shown as -. The table shape stays the same so different standards can be compared visually.
Chemical composition limits
Composition rows use mass percent limits. A range such as 3.8 - 4.9 means the listed element must stay inside that mass-percent interval. A value such as <= 0.5 is an upper limit.
Mechanical requirements
Mechanical rows are product-form specific. Always use the row matching:
- Product family
- Temper or delivery condition
- Dimension range
- Test direction when available
The Minimum summary is a search and review aid. It does not replace the row-specific requirement.
Purchasing use
When creating a purchase request, specify:
- Material grade or designation
- Product form
- Temper or heat treatment
- Dimensions and tolerances
- Quantity
- Required inspection document
- Additional drawing or project requirements
Substitution of grade, product form, temper, or certificate level requires engineering and quality review.