GOST 17378-2001 PDF

Full title and description

GOST 17378-2001 — "Carbon and low-alloy steel butt-welding fittings. Reducers. Design". The standard specifies design characteristics for seamless butt-weld reducers used in steel pipeline systems made of carbon and low-alloy steels.

Abstract

This standard defines the constructive requirements, main dimensional characteristics and general design rules for concentric and eccentric seamless butt-welding reducers for pipelines made of carbon and low-alloy steels (intended for typical pressure ranges covered by related GOSTs). It is intended to harmonize manufacture, marking and interchangeability of reducers used in industrial and utility piping.

General information

• Status: Active (designated GOST 17378-2001 / national/interstate standard).
• Publication date: Published (entered into force) on 1 January 2003 (designation year retained as 2001).
• Publisher: National standard (GOST) framework of the Russian Federation; norms published under the national/interstate GOST system administered by the Federal Agency on Technical Regulating and Metrology (Rosstandart).
• ICS / categories: 23.040.40 — Metal fittings; pipeline components (pipe fittings / reducers).
• Edition / version: GOST 17378-2001 (original adoption in 2001; published entry dated 1.1.2003); includes later amendments recorded in document listings.
• Number of pages: Typical published copies list 16–19 pages depending on publisher/format (standard commercial reproductions commonly show 19 pages).

Key bibliographic and status details summarized from public standards listings and the adopted GOST text.

Scope

Specifies design (construction) and dimensional characteristics for seamless butt-welding reducers made of carbon and low-alloy steels used in pipeline systems. The scope covers typical nominal diameters and geometric parameters for concentric and eccentric reducers and is intended for pipeline components operating within the nominal pressure classes addressed by related GOSTs (commonly up to about 10 MPa in related series). The standard was prepared as an interstate / national standard to align production and interchangeability of reducers.

Key topics and requirements

• Design and constructive provisions for seamless butt-welding reducers (concentric and eccentric).
• Main dimensional characteristics and tolerances (nominal diameters, end dimensions, lengths and wall thickness relationships).
• Material scope limited to carbon and low-alloy steels; references to material grades and related mechanical/chemical requirements are handled via cross-referenced GOSTs.
• Manufacturing and acceptance principles for seamless fittings (including basic requirements for welding ends and finishing).
• Marking, packaging and documentation requirements to ensure traceability and interchangeability.
• References to applicable normative documents and amendments incorporated into the adopted text.

Typical use and users

Manufacturers of pipe fittings and steel pipeline components, procurement and quality departments in oil & gas, petrochemical, power generation and utility companies, piping designers and engineering contractors, inspection and certification bodies working with GOST-based specifications. The standard is used wherever GOST series pipe fittings are specified for carbon and low-alloy steel pipeline systems.

Related standards

Closely related GOSTs in the butt-welding fittings series include GOST 17376-2001, GOST 17379-2001 (elliptical caps), GOST 17380-2001 (general specifications for butt-welding fittings) and other pipeline-component standards. The standard also indicates alignment with earlier international items (e.g., references to ISO documents in the adoption record).

Keywords

GOST 17378-2001; reducers; butt-welding fittings; carbon steel; low-alloy steel; concentric reducer; eccentric reducer; design; dimensions; pipeline fittings; 23.040.40.

FAQ

Q: What is this standard?

A: GOST 17378-2001 is a Russian / interstate standard that sets design requirements for seamless butt-weld reducers made of carbon and low-alloy steels (designation year 2001; entered in published catalogs with an effective date listed as 1 January 2003).

Q: What does it cover?

A: It covers constructive design rules and main dimensional characteristics for concentric and eccentric seamless reducers, plus related marking, packaging and reference requirements necessary to ensure interchangeability and manufacture to a common specification.

Q: Who typically uses it?

A: Pipe-fittings manufacturers, piping designers and engineers, procurement and inspection teams in industries using GOST-based equipment (oil & gas, petrochemical, utilities, power plants), and standards/quality organizations that reference GOST pipeline component series.

Q: Is it current or superseded?

A: Public listings show GOST 17378-2001 as an adopted/active standard in GOST catalogues; several commercial reproductions note amendments recorded against the text. Users should always check the national standards register or the issuing body for the absolute current status before specifying (national status can change with revisions or replacements).

Q: Is it part of a series?

A: Yes — it belongs to a family of GOSTs addressing butt-welding pipe fittings (reducers, caps, general specifications and related items). Related documents include GOST 17376-2001, GOST 17379-2001, GOST 17380-2001 and other pipeline-component standards in the 23.040.40 ICS grouping.

Q: What are the key keywords?

A: Reducer; butt-welding fitting; carbon steel; low-alloy steel; concentric; eccentric; design; dimensions; GOST 17378-2001; pipeline fittings; 23.040.40.