GOST 30753-2001 PDF

Full title and description

GOST 30753-2001 — Details of pipelines. Seamless butt-welded fittings from carbon and low-alloy steel. Sharply curved bends, type 2D (R ≈ DN). The standard specifies the construction (design) and main dimensional characteristics of steep (short-radius) welded bends intended for use in pipeline systems.

Abstract

This standard establishes design requirements, principal dimensions and configurations for seamless butt-welded sharply curved bends of type 2D (radius approximately equal to the nominal diameter). It covers typical bend angles (45°, 60°, 90° and 180°), general construction features and permitted manufacturing methods (for example hot drawing or stamping from pipe). GOST 30753-2001 is aligned with earlier international practice (noted correspondence with ISO 3419-81).

General information

• Status: In force (active / действующий).
• Publication date: Standard designation year 2001; approved in 2002 (May 27, 2002) and introduced into force on 01 January 2003.
• Publisher: Interstate (regional) standard — Межгосударственный стандарт; maintained/registered via national standards bodies (Rosstandart / related bodies).
• ICS / categories: 23.040.40 (Pipelines and their components); KGS classification G18 (fittings and pipeline connections).
• Edition / version: Original 2001 edition (first introduction; often cited as ГОСТ 30753-2001 or ГОСТ 30753-01).
• Number of pages: 10 pages (typical published text).

Scope

Applies to seamless butt-welded sharply curved pipe bends of type 2D manufactured from carbon and low-alloy steels. The standard defines design features and dimensional series for bends with radius R approximately equal to nominal diameter (R ≈ DN) and for standard bend angles (45°, 60°, 90° and 180°). Use is intended for a wide range of pipeline applications where such short-radius elbows are required.

Key topics and requirements

• Definition and designation of type 2D sharply curved bends (R ≈ DN) and standard bend angles (45°, 60°, 90°, 180°).
• Main dimensional parameters and tolerances (outside/inside diameters, wall thicknesses and mass for standard sizes).
• Materials: carbon steels and low-alloy steels specified by relevant technical requirements (material grades referenced to national steel standards).
• Manufacturing methods: typical production by hot drawing (stretching) or stamping from pipe; constructional notes for seamless welded items.
• Service application limits and typical operating parameters cited by users/manufacturers (examples: nominal pressures up to about 16 MPa and temperature ranges reported in product literature).
• Reference and cross-references to related GOSTs and general specifications for butt-welding fittings.

Typical use and users

Used by pipeline designers, fabricators and procurement engineers in oil & gas, petrochemical, power generation and industrial piping systems where compact direction changes are required. Typical users include pipework manufacturers, steelworks producing bends, EPC contractors, and maintenance/inspection teams specifying fittings to national/regulatory technical documentation. Manufacturers and suppliers reference GOST 30753-2001 when producing or certifying type 2D short-radius elbows.

Related standards

Closely related to general specifications for butt-welding fittings (for example GOST 17380 / GOST 17375 series) and other national/international standards for pipe fittings. The standard is noted as corresponding to ISO 3419-81 in some catalog records and is often used alongside other GOSTs that cover materials, testing and dimensional series for pipeline components.

Keywords

GOST 30753-2001; pipe bends; short-radius elbow; type 2D; R = DN; butt-welded fittings; carbon steel; low-alloy steel; construction; dimensions; pipeline fittings.

FAQ

Q: What is this standard?

A: GOST 30753-2001 is a regional (interstate) technical standard that specifies constructional design and dimensional requirements for seamless butt-welded sharply curved bends (type 2D, radius approximately equal to nominal diameter) made from carbon and low-alloy steels.

Q: What does it cover?

A: It covers the design (construction) features, principal dimensions, standard bend angles (45°, 60°, 90°, 180°), typical wall thicknesses and size series for type 2D short-radius bends and indicates applicable manufacturing approaches. It does not replace detailed material specifications or test procedures from separate normative documents.

Q: Who typically uses it?

A: Pipeline designers, manufacturers of pipe fittings, procurement specialists, EPC contractors and maintenance organisations in industries using steel piping (oil & gas, petrochemical, energy, utilities). Suppliers of GOST-compliant elbows cite it when marking and certifying product compliance.

Q: Is it current or superseded?

A: As of the latest available records, GOST 30753-2001 is listed as active (in force) and remains the valid reference for type 2D seamless butt-welded bends; updates and editorial notes were recorded in information bulletins (entries indicating amendments/notes in 2021 and 2022). Users should verify the current legal status with the national standards body before relying on the standard for regulatory compliance.

Q: Is it part of a series?

A: Yes — it is part of the family of GOST standards covering butt-welding fittings and pipeline components (related documents include general specifications for butt-welding fittings and other GOSTs addressing different bend radii and fittings types). It is often referenced alongside GOST 17375/17380 and other pipeline component standards.

Q: What are the key keywords?

A: Short-radius elbow; type 2D; R = DN; butt-welded fitting; carbon steel; low-alloy steel; pipeline fittings; construction; dimensions; ГОСТ 30753-2001.