GOST 10160-75 PDF

Full title and description

GOST 10160-75 — "Сплавы прецизионные магнитно-мягкие. Технические условия" / "Magnetically soft precision alloys. Specifications". Interstate (GOST) standard that sets classification, technical requirements, dimensional and magnetic property limits, testing and marking rules for precision magnetically soft alloys (binary and selected ternary iron‑base alloys used in high‑permeability, low‑coercivity applications).

Abstract

This standard defines the technical conditions for precision magnetically soft alloys (iron‑nickel, iron‑cobalt, iron‑chromium and selected iron‑nickel‑cobalt ternary alloys). It covers permitted alloy grades and marks, forms of supply (sheets, strips, ribbons, wire, rods, etc.), classes of precision and magnetic-property levels, dimensional tolerances and surface quality, required magnetic characteristics (permeability, coercive force, induction under specified field), methods of sampling and testing, marking, packaging and acceptance rules. The document was approved in 1975 and introduced 1 January 1976, with a series of amendments incorporated in subsequent reprints.

General information

• Status: Listed in national GOST databases and commercial standards collections as a standing (historical/interstate) standard with integrated amendments; commonly indicated as "in force" in reference catalogs (users should verify current legal status with the national standards body for procurement or regulatory purposes).
• Publication date: Approved 9 April 1975; introduced 1 January 1976 (designation year shown as 1975).
• Publisher: Approved by the State Committee for Standards of the USSR (Gosstandart); published in print by Izdatel'stvo Standartov (Moscow) in reprints (notably a May 1986 reissue incorporating amendments).
• ICS / categories: 77.080.20 (Metallurgy — steels / magnetic alloys; precision alloys).
• Edition / version: Original designation GOST 10160-75 (1975). Texts commonly found incorporate Amendments No.1–No.4 (issued ca. 1980–1990) and later editorial corrections; several reprints exist (1986 reprint noted).
• Number of pages: Varies by printing and edition (commonly reported between ~47 and 77 pages); a typical reprint edition is about 71 pages. Electronic versions and commercial extracts may differ in page count.

Scope

Applies to precision magnetically soft alloys used where high magnetic permeability and low coercive force are required. The standard covers unalloyed and alloyed binary iron‑nickel, iron‑cobalt and iron‑chromium alloys, plus selected ternary iron‑nickel‑cobalt compositions. It addresses allowed product forms (cold‑ and hot‑rolled sheet, strips and ribbons, wire, bars and rods), classification by precision and magnetic classes, dimensional and surface requirements, acceptance tests and magnetic property verification methods, and requirements for marking and packaging for delivery.

Key topics and requirements

• Classification of precision magnetic alloys by chemical composition, grade (mark) and application class.
• Specified magnetic-property levels (e.g., relative permeability ranges, reversible permeability parameters, coercive force limits and induction values under defined magnetizing fields) for different classes.
• Forms of supply and permitted geometries: strips, ribbons (coils and cut lengths), sheets (hot/cold), wire and rods; tolerances for thickness, width and length.
• Dimensional tolerances and edge conditions (cut or uncut edges), including tables for allowable width and thickness deviations by form and class.
• Surface quality, defects acceptance criteria, and requirements for annealing or other heat treatments to achieve required magnetic performance.
• Sampling, test methods and measurement procedures for magnetic properties (ballistic, induction or bridge methods referenced), mechanical and metallurgical tests, and how to report results.
• Marking, documentation, packaging and transport conditions for delivered batches, plus rules for nonconforming material handling and supplier/customer agreement items.

Typical use and users

Used by alloy producers, rolling and metallurgical mills, manufacturers of magnetic cores, transformers, inductors, sensors and precision electrical equipment, quality and testing laboratories, procurement and standards compliance teams. Engineers and material scientists selecting soft‑magnetic materials for circuit cores, precision instruments, magnetic shields and specialised electromagnetic components commonly consult this standard.

Related standards

Closely associated GOSTs and reference documents include prior version GOST 10160-62 (replaced), standards on precision alloy grades and composition (for example standards listing alloy marks and chemical requirements), and referenced test/measurement standards used for magnetic-property determination (for example national GOSTs on magnetic testing methods and general measurement practice). Typical cross‑references in the text include measurement and testing standards (e.g., standards on ballistic and induction methods), corrosion and metallurgical norms, and standards defining dimensional/inspection procedures.

Keywords

GOST 10160-75; magnetically soft; precision alloys; iron‑nickel; iron‑cobalt; iron‑chromium; iron‑nickel‑cobalt; permeability; coercive force; magnetic properties; sheets; ribbons; wire; technical conditions; Gosstandart; metallurgy.

FAQ

Q: What is this standard?

A: GOST 10160-75 is an interstate (GOST) technical standard specifying requirements for precision magnetically soft alloys — their grades, forms, magnetic and dimensional properties, testing and marking rules. It was approved in April 1975 and introduced on 1 January 1976.

Q: What does it cover?

A: It covers classification and marking of magnetically soft precision alloys (binary and selected ternary iron‑base alloys), permitted product forms (sheets, strips/ribbons, wire, rods), dimensional tolerances and surface requirements, required magnetic characteristics (permeability, coercive force, induction under defined fields), testing and sampling procedures, marking, packaging and acceptance conditions.

Q: Who typically uses it?

A: Alloy manufacturers, metallurgical mills, component manufacturers (cores, transformers, sensors), engineering and design teams specifying magnetic materials, and testing/quality laboratories use the standard as a technical reference for production and acceptance of magnetically soft precision alloys.

Q: Is it current or superseded?

A: The standard was introduced 1 January 1976 and has known integrated amendments (Amendments No.1–No.4 issued ca. 1980–1990) and later editorial corrections in some collections. Many national GOST catalogs and document collections list it as an active/in‑force standard or as a valid historical interstate standard; however, legal status and applicability for regulatory or procurement purposes should be confirmed with the current national standards registry (national standards body) because national adoption, replacement or supersession can change over time.

Q: Is it part of a series?

A: Yes — it is part of the wider family of precision alloy and metallurgical GOSTs (standards that classify precision alloy marks, composition and test methods). It replaced an earlier version (GOST 10160-62) and cross‑references a number of testing and measurement GOSTs used for verifying magnetic and dimensional properties.

Q: What are the key keywords?

A: Magnetically soft, precision alloys, iron‑nickel, iron‑cobalt, iron‑chromium, permeability, coercive force, ribbons, strips, sheets, GOST 10160-75.