Reference data
Verified reference datasets, built into Accumath alongside the engine.
Part of Accumath version 1 · updated 2026-10-20
We decided a math engine isn't a math engine without data to use in that math engine. So we included these 25 datasets for you to use with Accumath — and we also included our Equation Bank. We hope this moves you forward in your studies, your research, and your work efforts throughout your career.
The data is drawn from public sources — NIST and other United States government publications, and openly published industry tables — recorded as published facts, with the source named on every row.
For the working engineer or inspector, it is the reference shelf that usually sits behind the calculation: material properties, steel shapes, flange and pipe dimensions. For the STEM classroom, it is reference data a student can use knowing where every number came from.
Complete · datasheet published
Properties and constants for 52 engineering materials: pure metals, carbon and alloy steels, stainless steels, copper and nickel alloys, aluminum alloys, titanium, and cast irons.
Complete · datasheet published
All 118 elements: atomic mass, electron configuration, ionization energy, density, melting and boiling points, and more, anchored on NIST reference data.
Complete · datasheet published
151 common industrial and laboratory chemicals: molar mass, phase-change data, enthalpies of formation, and hazard summaries, anchored on the NIST Chemistry WebBook and PubChem.
Complete · datasheet published
Clear-wood properties for 36 species and engineered products from the USDA Forest Products Laboratory Wood Handbook, plus NDS reference design values for structural lumber and glulam.
Complete · datasheet published
Dimensions and section properties for 1,172 wide-flange, HSS, channel, and angle shapes, from the AISC Shapes Database.
Complete · datasheet published
Flange dimensions and bolting data for ASME B16.5 and API 6A flanges, from openly published manufacturer catalog tables.
Complete · datasheet published
Dimensions, weights, and published pressure ratings for carbon steel, stainless steel, copper, PVC, CPVC, and HDPE pipe.
Complete · datasheet published
Fundamental physical constants from the NIST CODATA listing.
Complete · datasheet published
Thread dimensions, bolt grades, and tightening torque data from published manufacturer charts.
Complete · datasheet published
Rockwell, Brinell, and Vickers hardness conversions from published producer tables.
Complete · datasheet published
Galvanic compatibility of metals and alloys in seawater, from MIL-STD-889.
Complete · datasheet published
ITS-90 reference tables for thermocouple types, from NIST.
Complete · datasheet published
Standard reinforcing bar sizes: diameters, cross-sectional areas, and weights.
Complete · datasheet published
Reinforcing bar grades and types, with their published mechanical requirements.
Complete · datasheet published
Typical published reference values for concrete properties and mixes.
Complete · datasheet published
Conductor sizes, resistances, and ampacities from published manufacturer tables.
Complete · datasheet published
Breaking strengths and working load limits for wire rope and rigging hardware, from published manufacturer catalogs.
Complete · datasheet published
The 1976 US Standard Atmosphere: temperature, pressure, and density against altitude.
Complete · datasheet published
Conversion factors to SI units, from NIST Special Publication 811.
Complete · datasheet published
131 minerals with their chemical formulas, crystal systems, Mohs hardness, specific gravity, and other identifying properties, from published mineralogy data.
Complete · datasheet published
52 igneous, sedimentary, and metamorphic rocks, classified by origin, texture, and mineral composition, from published geology sources.
Complete · datasheet published
170 eons, eras, periods, epochs, and ages with their boundary ages, from the International Chronostratigraphic Chart (ICS), version 2026/06.
Complete · datasheet published
The USGS Modified Mercalli intensity scale, I through XII: the observed effects that define each level.
Complete · datasheet published
All 24 groups of the Unified Soil Classification System, with classification criteria and typical engineering properties, from FHWA and USDA publications.
Complete · datasheet published
Seismic wave velocities for common materials and the layers of the Earth, and moment magnitude to energy tables, from published tables.