GOST 8639-82 PDF

Full title and description

GOST 8639-82 — "Square steel tubes. Assortment" (Russian: "Трубы стальные квадратные. Сортамент"). The standard defines the nominal sizes, wall-thickness ranges, manufacturing methods and basic technical requirements for square-profile steel tubes used in construction, mechanical engineering and general-purpose fabrication.

Abstract

GOST 8639-82 establishes the assortment (range) of square steel tubes — including seamless hot- and cold-formed, electric-welded (including cold‑formed and hot‑calibrated welded) and furnace‑welded products — and specifies their permitted sizes, wall thicknesses, marking and length categories. It is a dimensional and product‑definition standard (sortament) intended to ensure interchangeability and to standardize ordering and production.

General information

• Status: Active / In force (standard introduced and applied since 01 January 1983; limitation of term withdrawn by Gosstandart resolution).
• Publication date: Original designation GOST 8639-82; put into effect 01 January 1983.
• Publisher: Approved by the USSR State Committee for Standards (Gosstandart); developed with participation of the Ministry of Ferrous Metallurgy; currently maintained within the post‑Soviet standards system (Rosstandart / interstate catalogues).
• ICS / categories: OKS/ICS classification for this document is listed under industrial pipe categories (OKS 23.040.10 / profile and structural steel pipes).
• Edition / version: Original 1982 standard (GOST 8639-82) — introduced 1983 — with amendments published (Amend. No.1 — 1987; No.2 — 1990; No.3 — 1992; Change/Amend. No.4 applied in 2010).
• Number of pages: 11 pages (typical publication / reprints list 11 pages).

Scope

The standard applies to square steel tubes manufactured by multiple methods: seamless hot‑deformation and cold‑deformation, electric‑welding (including cold‑drawn welded and hot‑calibrated welded), and furnace welding. Defined external side (A) and wall thickness (s) ranges include (typical ranges per method): cold‑formed seamless tubes A = 10–120 mm, s = 1.0–8.0 mm; hot‑deformed seamless A = 60–180 mm, s = 4.0–14.0 mm; electric‑welded A = 10–100 mm, s = 0.8–5.0 mm. The standard sets dimensional tables, sectional properties (area, mass per metre, moments) and rules for lengths (measured, unmeasured, multiple lengths), tolerances and marking.

Key topics and requirements

• Definition of tube types covered (seamless hot/cold, electric‑welded, furnace‑welded) and permitted manufacturing methods.
• Dimensional assortment tables: external side (A) sizes and corresponding wall‑thickness (s) options with calculated cross‑section area, mass per metre, moments of inertia and resistance.
• Allowed size and wall‑thickness ranges by production method and associated tolerances for sides and wall thickness.
• Length classification and permissible deviations (measured — merna, unmeasured — nemerna, and multiple lengths) and typical standard production lengths.
• Marking, labeling and requirements for acceptance: marking of nominal size, steel grade, manufacturer identification and length; references to steel‑grade standards (e.g., GOST 13663 series) for material selection.
• References to related normative documents and amendments that modify or clarify production and inspection practices.

Typical use and users

Used by pipe manufacturers, steel mills, fabricators, procurement departments, structural and mechanical engineers, construction contractors and suppliers of profile tubing. Typical applications include structural framing, furniture and railing manufacture, scaffolding, supports, enclosures, and other load‑bearing or fabricated components where standardized square profile tubing is required.

Related standards

Commonly referenced documents include GOST 13663‑86 (steel grades for profile pipes), related profile‑pipe standards such as GOST 8645‑68 (rectangular profile tubes), and more recent national/international standards and normative documents on pipe testing and steel grades (various GOST/R and ISO references used in conjunction with GOST 8639‑82). Amendments and changes published in IUS bulletins and Rosstandart orders apply to interpretation and current use.

Keywords

GOST 8639-82, square steel tubes, square profile pipe, assortment, profile tubing, dimensions, wall thickness, welded tube, seamless tube, tube tolerances, pipe marking.

FAQ

Q: What is this standard?

A: GOST 8639-82 is the Soviet/Russian standard that defines the assortment (range) and basic dimensional/marking rules for square steel tubes — covering seamless and welded products produced by several manufacturing methods. It was introduced into force on 01 January 1983.

Q: What does it cover?

A: It covers form and nominal sizes (side A and wall thickness s), sectional properties (area, mass per metre, moments), permitted methods of manufacture (hot and cold seamless, electric‑welded, furnace welded), length categories and dimensional tolerances, plus marking and references to material standards.

Q: Who typically uses it?

A: Producers of profile tubing, steel mills, traders and distributors of structural square tubes, engineers and designers specifying standard square profiles for construction, mechanical and furniture applications, and procurement/specification teams that require standardized product definitions.

Q: Is it current or superseded?

A: The standard is listed as active (in force) in Russian normative catalogs; its formal limitation of validity was removed by a Gosstandart resolution and it has received amendments (last administrative change noted in 2010). However, users should verify current national/regional applicability for specific regulated applications and check whether a more recent national or industry standard is required for a particular project.

Q: Is it part of a series?

A: Yes — GOST 8639-82 is part of the family of GOST standards covering steel pipes and profiles (related documents include standards for rectangular/profile pipes, steel grades and testing—e.g., GOST 8645‑68, GOST 13663‑86 and others). It replaced GOST 8639-68 and is cross‑referenced with other pipe‑related standards.

Q: What are the key keywords?

A: Square steel tubes; assortment; profile pipe; welded and seamless; dimensions; wall thickness; GOST 8639‑82; marking; length categories; pipe tolerances.