GOST 10704-91 PDF

Full title and description

GOST 10704-91 — Electrically welded steel pipes. Assortment. This interstate standard specifies the assortment (range), dimension series, and general marking/identification rules for electrically welded (straight-seam) steel tubes, and is published with Amendments No. 1 and No. 2.

Abstract

Sets the standardised sizes, wall‑thickness options, manufacturing accuracy classes, basic tolerances, length types (random or fixed), and marking conventions for electrically welded steel line‑weld tubes used in general engineering, construction and pipelines. The standard was developed under the USSR Ministry of Metallurgy and introduced for use from 1 January 1993; it has been reprinted and amended subsequently.

General information

• Status: In force with recorded amendments (noted modifications / reprints; maintained on the Russian/Interstate GOST catalogue).
• Publication date: Original designation year 1991; introduced 1 January 1993.
• Publisher: Interstate standard (approved by the Committee for Standardization and Metrology of the USSR; administered in the Russian Federation by Rosstandart; adopted and amended via the Interstate Council process).
• ICS / categories: ICS 23.040.10 (Tubes; piping) — OKP classifications also referenced in the standard record.
• Edition / version: GOST 10704-91 (1991); reprinted 2007; includes Amendments No.1 (adopted 2011/introduced 2012) and No.2 (approved 2015/introduced 2015).
• Number of pages: 24 pages (typical published version / catalogue entry).

Scope

This standard establishes the assortment (range) of electrically welded straight‑seam steel tubes — nominal outside diameters, wall thicknesses, allowable tolerances, length options and general designation/marking rules for tubes produced for general industrial, structural and pipeline use. It covers a multiplicity of size series (examples in the normative tables range from small diameters to very large diameters and corresponding wall thicknesses) and applies to both random‑length and fixed‑length deliveries.

Key topics and requirements

• Standard title and scope: electrically welded (straight‑seam) steel line‑weld tubes — assortment and designation.
• Dimension series: normative tables specify outside diameters and corresponding theoretical weights at listed wall thicknesses (table-driven assortment). Example entries cover a wide range of diameters in the normative tables.
• Typical OD / WT ranges (supplier and catalogue summaries): commonly quoted commercially as outside diameters from about 12 mm up to larger sizes and wall thicknesses from about 0.9 mm upward (specific table values depend on the nominal size series in the standard). Tolerances on OD and wall thickness are specified per size groups.
• Lengths and delivery: random lengths (typical ranges) and fixed lengths (multiples of standard units) are defined; class/accuracy options for dimensional control and ovality are given.
• Material/grades and heat treatment notation: the standard refers to steel grades and to marking conventions — e.g., adding letter T for pipes heat treated through the whole section and L for local weld heat treatment.
• Quality control: welded seam quality is controlled including by non‑destructive methods where required; testing and referencing to related GOST documents for steel and testing methods are included.

Typical use and users

Used by steel tube manufacturers, metal traders and distributors, mechanical and structural engineers, pipeline and plant designers, procurement and quality‑assurance personnel who need a standardised assortment and dimensional/tolerance basis for electrically welded steel tubes. It is referenced in technical specifications, purchase orders and inspection documentation where GOST conformity is required.

Related standards

Normative references and related documents cited in GOST 10704‑91 include GOST 10705‑80 and GOST 10706‑76 (related tubular product standards), GOST 19903‑74 (steel grades), and other GOSTs covering testing and supplementary requirements; the standard is part of the family of GOST documents for steel tubes and pipe products.

Keywords

GOST 10704-91; electrically welded pipes; straight‑seam steel tubes; assortment; dimensions; tolerances; wall thickness; pipe lengths; marking; GOST tubular standards.

FAQ

Q: What is this standard?

A: GOST 10704-91 is an interstate (GOST) standard that defines the assortment (range) and basic technical and dimensional rules for electrically welded (straight‑seam) steel tubes.

Q: What does it cover?

A: It covers nominal outside diameters and wall thickness series, theoretical weights, allowable tolerances by size group, length options (random and fixed), basic manufacturing accuracy classes, marking rules (including heat‑treatment notation), and references to relevant steel and testing standards.

Q: Who typically uses it?

A: Manufacturers and suppliers of welded steel tubes, purchasers and specifiers in construction, mechanical engineering and pipeline works, and QA/inspection laboratories that verify conformity to GOST tubular product requirements.

Q: Is it current or superseded?

A: The standard GOST 10704‑91 remains listed in GOST catalogues and has recorded amendments (reprint 2007; Amendments No.1 and No.2 introduced via Interstate/Rosstandart orders in 2011/2012 and 2015). It is therefore treated as the active GOST text with those amendments unless a later replacement has been officially published; users should verify the latest status with the national standards body or an official GOST catalogue before relying on it for compliance.

Q: Is it part of a series?

A: Yes — it is part of the family of GOSTs governing steel pipes and tubes and references companion standards such as GOST 10705‑80 and GOST 10706‑76 and other normative documents for steels and testing methods.

Q: What are the key keywords?

A: Electrically welded pipes; straight‑seam tubes; assortment; dimensions; wall thickness; tolerances; GOST 10704‑91; pipe marking.