Data Sources & Standards References

Last updated: July 2026

All structural steel section data published on SectionLib is sourced directly from primary engineering standards — not from secondary aggregators or estimated from partial data. The following tables list every standard referenced on this platform, grouped by origin and scope.

For details on how data is verified and maintained, see the Editorial Policy. To report a data error, use the contact form.

🇪🇺 European Standards (EN)

Section Dimensions & Properties

Reference values — verify against the current edition of the applicable standard or manufacturer's table before design use.

Standard	Title	Applies To
EN 10365:2017	Hot-rolled steel channels, I and H sections — Dimensions and masses	IPE, HEA, HEB, HEM, IPN, UPN, UAP beams and channels
EN 10034:1993	Structural steel I and H sections — Tolerances on shape and dimensions	Dimensional tolerances for I and H profiles
EN 10056-1:1998	Structural steel equal and unequal leg angles — Dimensions	Equal angles (L), unequal angles (L)
EN 10056-2:1993	Structural steel equal and unequal leg angles — Tolerances on shape and dimensions	Angle section tolerances
EN 10210-2:2019	Hot-finished structural steel hollow sections — Tolerances, dimensions and sectional properties	RHS, SHS, CHS — hot-finished
EN 10219-2:2019	Cold-formed welded structural steel hollow sections — Tolerances, dimensions and sectional properties	RHS, SHS, CHS — cold-formed
EN 10058:2003	Hot-rolled flat steel bars for general purposes — Dimensions and tolerances on shape and dimensions	Flat bars
EN 10060:2003	Hot-rolled round steel bars for general purposes — Dimensions and tolerances	Round bars

Material Grades

Reference values — verify against the current edition of the applicable standard or manufacturer's table before design use.

Standard	Title	Grades Covered
EN 10025-2:2019	Hot-rolled products of structural steels — Technical delivery conditions for non-alloy structural steels	S235, S275, S355, S450
EN 10025-3:2019	Normalised/normalised rolled weldable fine grain structural steels	S275N/NL, S355N/NL, S420N/NL, S460N/NL
EN 10025-4:2019	Thermomechanical rolled weldable fine grain structural steels	S275M/ML, S355M/ML, S420M/ML, S460M/ML
EN 10088-1:2014	Stainless steels — List of stainless steels	304, 316, duplex grades

Design Codes

Reference values — verify against the current edition of the applicable standard or manufacturer's table before design use.

Standard	Title	Used For
EN 1993-1-1:2005	Eurocode 3: Design of steel structures — General rules	Section classification, beam design, LTB
EN 1993-1-8:2005	Eurocode 3: Design of steel structures — Design of joints	Bolt design, weld design
EN 10204:2004	Metallic products — Types of inspection documents	Mill certificate references (3.1, 3.2)

🇮🇳 Indian Standards (IS / BIS)

Reference values — verify against the current edition of the applicable standard or manufacturer's table before design use.

Standard	Title	Applies To
IS 808:2021	Hot-rolled steel beam, column, channel and angle sections — Dimensions and properties	ISMB, ISLB, ISWB, ISHB, ISMC, ISA sections
IS 811:1987	Cold-formed light gauge structural steel sections — Specification	Cold-formed Indian sections
IS 1161:2014	Steel tubes for structural purposes — Specification	Indian structural steel tubes
IS 2062:2011	Hot rolled medium and high tensile structural steel — Specification	E250, E300, E350, E410 grades
IS 800:2007	General construction in steel — Code of practice	IS section classification (b/tf, d/tw limits)

🇺🇸 American Standards (ASTM / AISC / ASME / API)

Sections & Material

Reference values — verify against the current edition of the applicable standard or manufacturer's table before design use.

Standard	Title	Applies To
ASTM A6/A6M-19	Standard specification for general requirements for rolled structural steel bars, plates, shapes, and sheet piling	W, S, M, HP, C, MC, L shapes
AISC Steel Construction Manual, 16th Ed.	American Institute of Steel Construction Steel Construction Manual	W, S, HP, C, L section properties
ASTM A36/A36M	Standard specification for carbon structural steel	General structural use, Fy = 250 MPa
ASTM A572/A572M	Standard specification for high-strength low-alloy columbium-vanadium structural steel	Grade 50 (Fy = 345 MPa), Grade 60, Grade 65
ASTM A193/A193M	Standard specification for alloy-steel and stainless steel bolting for high temperature or high pressure service	B7 stud bolts (SAES/ARAMCO)
ASTM A194/A194M	Standard specification for carbon steel, alloy steel, and stainless steel nuts for bolts for high pressure or high temperature service	2H heavy hex nuts

Pipe & Tubular

Reference values — verify against the current edition of the applicable standard or manufacturer's table before design use.

Standard	Title	Applies To
API 5L:2018	Specification for line pipe	API pipe grades X42–X80, seamless and welded
ASME B36.10M:2018	Welded and seamless wrought steel pipe	Carbon steel pipe schedules (SCH 40, 80, 160, XXH)
ASME B36.19M:2018	Stainless steel pipe	Stainless pipe schedules

Offshore & Structural Design

Reference values — verify against the current edition of the applicable standard or manufacturer's table before design use.

Standard	Title	Used For
API RP 2A-WSD:2014	Recommended practice for planning, designing and constructing fixed offshore platforms — Working stress design	Offshore jacket design, pile design, wave load
API RP 2GEO:2011	Geotechnical and foundation design considerations	Pile axial and lateral capacity
ASME PCC-1:2019	Guidelines for pressure boundary bolted flange joint assembly	Bolt torque and preload
AWS D1.1/D1.1M:2020	Structural welding code — Steel	Weld design, fillet weld capacity
ISO 19902:2020	Petroleum and natural gas industries — Fixed steel offshore structures	Offshore structural design

🇸🇦🇶🇦 GCC Regional Standards

Reference values — verify against the current edition of the applicable standard or manufacturer's table before design use.

Standard	Title	Applies To
SAES-Q-007	Structural Design Requirements — Saudi Aramco Engineering Standard	Structural design for ARAMCO projects (KSA)
SAES-L-109	Selection of Flanges, Bolting, Gaskets and Flange Tightening — Saudi Aramco	Flange bolt specs for ARAMCO piping
SAES-H-001	Coating Requirements for Equipment & Structural Piping — Saudi Aramco	Corrosion protection paint systems
SBC 301	Saudi Building Code — Loads and Forces Requirements	Structural loads — Saudi Arabia
SBC 306 (steel structures)	Saudi Building Code — Steel Structures Requirements	Steel structural design — Saudi Arabia
QCS 2024	Qatar Construction Specifications (Technical Guide), QS 27:2024; first edition 03/03/2024	Check the applicable project contract and current QCS provisions — Qatar

Corrosion & Surface Protection

Reference values — verify against the current edition of the applicable standard or manufacturer's table before design use.

Standard	Title	Applies To
ISO 12944-1 to 9:2018	Paints and varnishes — Corrosion protection of steel structures by protective paint systems	Corrosion categories C1–C5-M, paint DFT requirements
ISO 1461:2022	Hot dip galvanized coatings on fabricated iron and steel articles — Specifications and test methods	Hot-dip galvanizing coating thickness
DNVGL-ST-0126:2018	Support structures for wind turbines	Offshore structural fatigue reference

How to Report a Data Issue

If you identify a value on SectionLib that does not match the source standard, please use the contact form and include: the page URL, the specific value in question, the standard and table/clause you are referencing, and the correct value. We will investigate and correct promptly. See the Editorial Policy for our full corrections process.