GB/T 14986.2-2025Soft magnetic alloys - Part 2: Nickel-iron alloys (English PDF)

1 Scope

This document provides the classification of iron-nickel soft magnetic alloy materials, and specifies the order content, manufacturing process, technical requirements, inspection rules, packaging, labeling, etc.

The corresponding test methods are described in the label, storage and quality certificate.

This document applies to the production, procurement and application of the following iron-nickel soft magnetic alloy materials (hereinafter referred to as alloy materials).

--- Corrosion-resistant iron-nickel alloy 1J336 cold-rolled strip, hot-rolled (forged) bar and plate;

---Higher magnetic permeability and higher saturation magnetic induction strength iron-nickel alloy 1J346, 1J348, 1J350, 1J354 cold rolled strip, cold drawn wire, cold drawn (rolled) tubes, hot-rolled (forged) bars and plates;

---High magnetic permeability iron-nickel alloy 1J476, 1J477, 1J479, 1J480, 1J485, 1J486 cold-rolled strip, cold-drawn wire, cold-drawn (rolled) tube

Hot-rolled (forged) bars and plates, 1J476, 1J479, 1J485 cold-rolled plates;

---Cold-rolled strips of nickel alloys 1J334, 1J350J, 1J352, 1J465, 1J467, 1J483 and 1J340;

---Cold-rolled strip of magnetic temperature-compensated iron-nickel alloys 1J330, 1J331, 1J332, 1J333, and 1J338;

---Cold-rolled strip of constant permeability iron-nickel alloy 1J466;

---Cold rolled strip of high hardness and high resistance iron-nickel alloys 1J487 and 1J488.

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document.

For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to

This document.

GB/T 223 (all parts) Chemical analysis methods for steel and alloys

GB/T 3658 Measurement of magnetic properties of soft magnetic metal materials and powder metallurgy materials in the frequency range of 20 Hz to 100 kHz using annular specimens method

GB/T 4340.1 Metallic materials Vickers hardness test Part 1.Test method

GB/T 6146 Test method for resistivity of precision resistance alloys

GB/T 8170 Rules for rounding off values and expression and determination of limit values

GB/T 13012 Measurement method of DC magnetic properties of soft magnetic materials

GB/T 13297 General provisions for packaging, marking and quality certificates of precision alloys

GB/T 14986.1-2025 Soft magnetic alloys Part 1.General requirements

GB/T 20066 Sampling and preparation of samples for determination of chemical composition of steel and iron

GB/T 20123 Determination of total carbon and sulfur content of steel - Infrared absorption method after combustion in a high-frequency induction furnace (conventional method)

GB/T 36164 High alloy steel - Determination of multi-element content - X-ray fluorescence spectrometry (conventional method)

GB/T 38939 Nickel-based alloys - Determination of multi-element content - Spark discharge atomic emission spectrometry (routine method)

3 Terms and Definitions

The terms and definitions defined in GB/T 14986.1-2025 and the following apply to this document.

GB/T 14986.5 | GB/T 14986.4 | GB/T 14986.3 | GB/T 14986.1 | GB/T 14986.1 | […]