GOST 14019-2003 PDF

Full title and description

GOST 14019-2003 — "Materials, metallic. Bend test method" (ГОСТ 14019-2003; based on ISO 7438). The standard specifies a standardized bend test procedure used to determine the ability of metallic materials to undergo plastic deformation in bending (test specimens of round, rectangular, square or polygonal section; specified formers, supports and fixtures; specified bend angles and acceptance criteria).

Abstract

This interstate (GOST) standard establishes the method for performing bend tests on metallic materials to assess their ductility and resistance to cracking or fracture during bending. It defines specimen types, test equipment (former, supports, V‑block, clamp), general test procedure and interpretation of results. GOST 14019-2003 supersedes GOST 14019-80 and is aligned with the ISO 7438 family of bend-test standards.

General information

• Status: Active / действующий (introduced as an interstate standard and adopted as a national standard by member states).
• Publication date: Designated 2003; introduced into effect 1 September 2004 (date of national introduction).
• Publisher: Interstate Council for Standardization, Metrology and Certification (adopted and introduced by Gosstandart of the Russian Federation / national bodies of participating states).
• ICS / categories: 77.040.10 — Metallurgy; testing of metals; mechanical testing of metals.
• Edition / version: GOST 14019-2003 (replaced GOST 14019-80). The standard text corresponds to ISO 7438 (series revisions exist at ISO level).
• Number of pages: Typically listed as 11–12 pages depending on publisher/translation/format.

Scope

GOST 14019-2003 specifies a method for determining the ability of metallic materials to undergo plastic deformation in bending. It applies to bend tests on specimens taken from metallic products where the bend test is the appropriate method specified by the relevant product standard. The standard is not intended for certain product types (for example some seamless tube sections or specific welded joints) where other specialized standards apply.

Key topics and requirements

• Principle of the bend test: plastically deform a test piece (round, square, rectangular or polygonal cross-section) by bending to a specified angle and assess for cracking or failure.
• Specification of test fixtures: former (mandrel), two-support former (3‑point style), V‑block + former, and clamp‑type devices; requirements for support spacing and former diameter where not otherwise specified by product standards.
• Requirements for specimen preparation, orientation and dimensional tolerances as required by the product or test specification.
• Test execution: controlled bending (rate, alignment and distance between supports) to specified angles (including 180° where required), with options for flat contact or spacing inserts when surfaces must be kept parallel after bending.
• Acceptance criteria and result interpretation: visual and/or microscopic inspection for cracks, separation or other failure modes; pass/fail criteria are defined or referenced by the product standard or agreed test protocol.
• Relationship to international standards: text is aligned with the ISO 7438 family (the GOST incorporates/reflects ISO requirements with national clarifications or annexes where applicable).

Typical use and users

Used by metallurgical and materials testing laboratories, quality control departments in metal manufacturing and fabrication, certification bodies, research institutions and standards organizations. Typical users perform bend testing for incoming inspection, production quality control, failure analysis and verification of material ductility for product acceptance.

Related standards

ISO 7438 (the international bend‑test standard series and its later revisions), the earlier national version GOST 14019-80 (superseded), and other mechanical testing standards for metals (e.g., tensile and hardness standards) and product‑specific standards that reference bend testing for acceptance criteria. GOST 14019-2003 is part of the body of test‑method standards used alongside ISO/GOST test families.

Keywords

bend test; bend method; metallic materials; ductility; plastic deformation; former; mandrel; support spacing; ISO 7438; mechanical testing; metallurgy.

FAQ

Q: What is this standard?

A: GOST 14019-2003 is an interstate standard that defines the method for conducting bend tests on metallic materials to evaluate their ability to undergo plastic deformation without cracking. It is aligned with the ISO 7438 bend‑test family.

Q: What does it cover?

A: It covers specimen types and preparation, test equipment (formers, supports, V‑blocks, clamps), test procedure (bending to specified angles under controlled conditions), and criteria for judging failure or acceptance; it does not replace product‑specific standards where those specify different procedures or exclusions.

Q: Who typically uses it?

A: Materials and metallurgical testing laboratories, factory quality control and inspection teams, product certification bodies and research or academic labs involved in mechanical testing of metals.

Q: Is it current or superseded?

A: GOST 14019-2003 replaced GOST 14019-80 and is listed as the operative interstate standard (introduced 1 September 2004). At the ISO level the corresponding ISO 7438 editions have been revised over time; users should confirm national adoption status and any later amendments or replacements for their country and application.

Q: Is it part of a series?

A: Yes — it is part of the mechanical testing family for metallic materials and corresponds to the international bend‑test standard (ISO 7438). It is commonly used together with other test standards (tensile, hardness, impact) referenced in product standards.

Q: What are the key keywords?

A: Bend test, bend method, metallic materials, ductility, former, mandrel, supports, V‑block, ISO 7438, mechanical testing.