Materials
Material records are property records. They are separate from purchasing and inspection standards, even when both describe the same alloy or product.
PropLib has public and private editions. A public material must have explicit open redistribution rights and a source citation. The private edition inherits every public material and adds licensed, internal, and uncleared overlay records. An unknown license is never treated as public. Records derived from HSB-English-v0-7-0_Materials.pdf are restricted to the private overlay and are explicitly rejected by the public release gate.
The public catalog contains 1,653 solid cards:
- 26 selected pure-element cards from pinned MIT-licensed
mendeleev-data v1.2.0;
- 44 common inorganic phases from a pinned CC BY 4.0 JARVIS-DFT v11
subset;
- 1,077 amorphous-polymer models from a pinned BSD-3-Clause RadonPy
PI1070 snapshot;
- 312 CC BY 4.0 Matbench steel composition/yield observations;
- nine named public-use historical NASA alloy references;
- 87 condition-specific public-release MIL-HDBK-5H alloy references for
precipitation-hardening and low-alloy steels, AISI 301, multiple aluminium alloy families and castings, nickel/cobalt alloys, and titanium products.
- 12 public-release historical U.S. federal-specification references for
Aluminum 3003 rolled and extruded products in named O/H tempers.
- one CC BY 4.0 experimental AA6082-T6, 1.0 mm parent-sheet reference; and
- one public-use NASA 17-4PH H1050, 54 mm plate, short-transverse reference.
- three exact AA6008 U.S.-patent example cards for separate T7/T7/T6
mono-chamber hollow-profile routes, with one analyzed composition, measured tensile results and bounded axial-crush observations;
- two CC BY 3.0 secondary AA6463 references for annealed and T6 conditions,
retaining missing product/test context and the source's hardness-scale conflict;
- one CC BY 4.0 exact-grade AA6261 card with empirical composition, source-
reported density/modulus, and an unreinforced remelted/stir-cast base-control hardness/tensile result set, with the paper's internal conflicts disclosed;
- one public-use NASA/WWFE T300/913C unidirectional-tape card with ten
directional model inputs and explicit secondary-source semantics.
- one public-use NASA/WWFE T300/DFVLR BSL914C unidirectional-ply card with
organizer-provided pristine inputs; and
- one public-use NASA T300/F550 card with explicitly computational transverse
ply-strength estimates at -155, 21, and 95 degC.
- one CC BY 3.0 exact-product HexPly 913G-E-5-30 E-glass/913 UD card with
nominal cured ply thickness and longitudinal/transverse layer moduli; the source table's missing density unit is explicitly disclosed.
- one public-use NASA T300/Code 69 exact-system card with the documented
autoclaved laminate configurations, test conditions and star-punch damage geometry; no normalized plot values or inferred ply properties are imported.
- 38 MDPI CC BY condition-specific aluminium references for EN AW-2007,
AA2011 wire, AA3004, AA5005-H32, combined EN AW-5005/5005A-H14/H24, EN AW-4006 hard-anodized layers, EN AW-5019 fine wire, AA5182, AA5383 hot deformation, AA5754-H22, AA6005-T6, AA6005A, EN AW-6060-T6, AA6063-T6, EN AW-6106-T6, AA7003, AA7020, AA7005, AA7021, EN AW-7108-T7/T8, EN AW-1050A-H14, EN AW-1200, EN AW-2017A, EN AW-5251-H34 and EN AW-6014-T4;
- nine additional peer-reviewed CC BY references for AA3105 base sheet,
AA6016-T4 1.5 mm sheet constitutive/anisotropy parameters, EN AW-2618A T61/overaged forgings, EN AW-2014A TDCB model inputs, and qualified 6110A-T6 study-context model inputs, two exact EN AW-8011A industrial cold-rolling/annealing process chains, and one exact AA6351-T6 as-received 19.05 mm extruded-rod chemistry/microhardness reference; and
- three PLOS/IOP CC BY references for annealed EN AW-2030 square bar and
two statically tested EN AW-3103 thin-wall tube geometries; and
- eight additional CC BY references for cast/extruded EN AW-1080A hot-flow
models, fully annealed EN AW-5049-O seamless-tube tensile and bulge models, EN AW-6012 initial T3 and laboratory ECAP-plus-ageing states, source-labeled AA6262 base-plate inputs with an explicit chemistry-conflict warning, and AA7049A 50 mm commercial-extrusion composition; and
- six CSIC CC BY references for one exact AA3005 heat from continuously cast
strip through three hot-rolling stages, separated by reported direction; and
- one MDPI CC BY exact-grade composition card for a source-identified 2.7 mm
EN AW-1070A metallizing wire, with no inferred EN limits or mechanical data;
- one LAJSS CC BY exact-grade material-model card for a source-reported 10 mm
EN AW-7022 clamp frame, preserving density, elastic constants, yield input, and Cowper-Symonds inputs while exposing the missing temper and test context;
- one ASTRJ CC BY exact-grade card for explicitly assumed density and elastic
inputs used to model a source-identified 175 x 50 x 5 mm EN AW-6101A plate;
- two Materials Characterization CC BY exact-grade EN AW-7108A research-alloy
cards preserving separate A1/A2 compositions, process context and Al3Zr dispersoid populations; and
- five current public-release DLA armor-plate references for AA5059 and
AA7020, with exact thickness bands, longitudinal minima and no inferred temper.
The JARVIS and RadonPy values are computational. They are useful for screening and search-space exploration, but are not measured manufacturer grades or design allowables. All public solid cards remain explicitly design_release_allowed: false. The RadonPy import contains only computed CSV fields and excludes PoLyInfo experimental validation data.
The Matbench rows are experimental screening observations, not identified alloy grades. NASA and MIL-HDBK-5H cards are named historical references. The AA6082 and 17-4PH technical-paper cards are also experimental and preserve their exact sheet/plate thickness and loading or direction; neither is a product-standard minimum. The AA6008 cards likewise preserve three exact process/temper instances and profile geometry; publication supplies neither population statistics nor a patent license, so they are screening records and not generic grade allowables. The AA6463 annealed/T6 rows are also screening-only: they are secondary review tables with no form, size, direction, method, population statistics or test temperature, and their hardness heading/unit conflict is not silently resolved. The AA6261 card is likewise a laboratory research instance rather than an EN wrought-product minimum. It keeps both inconsistent source yield observations, does not infer a temper, and excludes every nano-reinforced composite result. The T300/913C and T300/914C cards are same-system ply references, but their WWFE inputs are reported through NASA rather than presented as NASA measurements; missing cure, batch, temperature and statistical context keeps them screening-only. The F550 card is more limited: NASA explicitly substituted generic ICAN constituents, so it remains a computational approximation rather than measured trademark-system data. The E-glass/913 card identifies the demonstrated product and panel cure cycle, but its values are research model inputs without batch statistics or test-method context; the source prints Density 1900 without a unit, so the card marks kg/m^3 as an interpretation rather than a source-printed unit. The Code 69 card does not fill the private lamina-property fields: its value is exact material/process/test context, with absolute strength plots deliberately left undigitized. The MIL-HDBK-5H importer preserves condition, bare/clad status, form, size range, direction, table basis, source value and SI conversion. These cards still require a current specification, certificate and project approval before use. The 3003 federal-specification cards additionally preserve historical minimum and maximum semantics and conservative full-thickness-band aggregation.
The private edition includes a checked coverage audit for every restricted record. exact_scope means that independently sourced public data covers the same grade, condition, form and private size band. partial_scope always states the remaining mismatch. Unmatched records remain unresolved; a similar alloy or different temper is not presented as an equivalent. The current audit reports 35 exact-scope, 112 partial-scope, and 22 unresolved restricted cards. It separately reports property-label semantics: 17 cards have complete scope and property-semantic coverage, while 130 remain partial. The partial set includes EN AW-1050A, 1070A, 1080A, 1200, 2007, 2011, 2014, 2014A, 2017A, 2024, 2030, 2618A, 3003, 3004, 3005, 3103, 3105, 4006, 5005, 5005A, 5019, 5052, 5059, 5049, 5083, 5086, 5182, 5251, 5383, 5454, 5754, 6005, 6005A, 6008, 6012, 6014, 6016, 6060, 6061, 6063, 6082, 6101A, 6106, 6110A, 7108A, 8011A, 6262, 6351, 6463, 7003, 7005, 7010, 7020, 7021, 7022, 7049A, 7075 and 7108, mapped by their registered international alloy number to explicit public temper/form/size cards. These are not substitutes for the licensed EN minimum tables or product-standard rows.
Official manufacturer datasheets are tracked separately. Their public URLs are useful references, but their values are not copied into the public catalog unless the copyright holder grants open-data or redistribution rights. See Manufacturer datasheet sources for the current register and promotion checklist.
Catalog page
Open Materials to search solids by name, category, summary, and property text. The main categories include metals, polymers, elastomers, insulation, glass and ceramic, construction materials, adhesives, gaskets, and composites.
The landing page is for searching and opening material cards. It does not expose developer JSON controls.
Material detail page
A material detail page shows:
- Physical properties
- Thermal properties
- Mechanical properties
- Composition rows when available
- Condition metadata
- Temperature-dependent rows when available
- Linked material standards
- Source and validity metadata
Mechanical properties
Mechanical records use standard engineering labels where possible:
- Young's modulus
- Shear modulus
- Poisson's ratio
- Yield strength
- Tensile strength
- Elongation at break
- Hardness
Shear modulus is derived when Young's modulus and Poisson's ratio are present:
G = E / (2 * (1 + nu))
Unit switching
Material detail pages can be shown in Common SI or Imperial units. PDF datasheets can also be exported in the selected unit system.
The raw material data remains stored in SI engineering units. Converted displays keep raw SI metadata in API responses.
Compare materials
Open Compare materials to compare 2 to 5 candidate materials. The comparison view explains missing values instead of silently showing a blank result.
Use comparison for early selection. Use the linked material pages and standards before release.
Comparison cells retain the original property label, unit, and condition notes. A tensile force or tensile modulus is not treated as tensile strength. Missing strength data remains explicitly missing. Unavailable material IDs are reported instead of being replaced with unrelated records.
Datasheet PDF
Each material page has a PDF datasheet action. The report includes:
- Material identity and category
- Selected unit system
- Condition metadata
- Property tables
- Source and validity section
Use datasheets for review packages, not as a replacement for project-specific approvals.