Standard No.:	GB/T 6983-2022
English Name:	Magnetic iron
Chinese Name:	电磁纯铁
Chinese Classification:	H59    Other special alloys
Professional Classification:	GB    National Standard
ICS Classification:	77.140.40 77.140.40    Steels with special magnetic properties 77.140.40
Source Content Issued by:	SAMR; SAC
Issued on:	2022-10-12
Implemented on:	2023-5-1
Status:	valid
Superseding:	GB/T 6983-2008 Soft magnetic iron
Target Language:	English
File Format:	PDF
Word Count:	5500 words
Translation Price(USD):	165.0
Delivery:	via email in 1 business day

GB/T 6983-2022 Magnetic iron 1 Scope This document specifies the classification, dimension, shape and weight, technical requirements, test methods, inspection rules, packaging, marking, and quality certificate of magnetic iron. This document is applicable to hot-rolled (forged) bars (square, round, flat), hot-rolled wire rods, cold-drawn round bars, hot-rolled plates (strips), and cold-rolled plates (strips) of magnetic iron. Note: Magnetic iron is also known as soft magnetic iron internationally. 2 Normative references The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 223.5 Steel and iron - Determination of acid-soluble silicon and total silicon content - Reduced molybdosilicate spectrophotometric method GB/T 223.8 Methods for chemical analysis of iron, steel and alloy - The sodium fluoride separation-EDTA titration method for the determination of aluminium content GB/T 223.9 Iron, steel and alloy - Determination of aluminium content - Chrom azurol S photometric method GB/T 223.12 Methods for chemical analysis of iron, steel and alloy - The sodium carbonate separation-diphenyl carbazide photometric method for the determination of chromium content GB/T 223.19 Methods for chemical analysis of iron, steel and alloy - The neocuproine-chloroform extraction photometric method for the determination of copper content GB/T 223.23 Iron, steel and alloy - Determination of nickel content - The dimethylglyoxime spectrophotometric method GB/T 223.53 Methods for chemical analysis of iron, steel and alloy - The flame atomic absorption spectrophotometric method for the determination of copper content GB/T 223.54 Iron, steel and alloy - Determination of nickel content - Flame atomic absorption spectrometric method GB/T 223.59 Iron, steel and alloy - Determination of phosphorus content - Bismuth phosphomolybdate blue spectrophotometric method and antimony phosphomolybdate blue spectrophotometric method GB/T 223.62 Methods for chemical analysis of iron, steel and alloy - The butyl acetate extraction photometric method for the determination of phosphorus content GB/T 223.63 Iron, steel and alloy - Determination of manganese content - Sodium (potassium) periodate spectrophotometric method GB/T 223.64 Iron, steel and alloy - Determination of manganese content - Flame atomic absorption spectrometric method GB/T 223.79 Iron and steel - Determination of multi-element contents - X-ray fluorescence spectrometry (Routine method) GB/T 223.81 Iron, steel and alloy - Determination of total aluminum and total boron contents - Microwave digestion-inductively coupled plasma mass spectrometric method GB/T 223.84 Steel and iron - Determination of titanium content - Diantipyrylmethane spectrophotometric method GB/T 223.85 Steel and iron - Determination of sulfur content - Infrared absorption method after combustion in an induction furnace GB/T 223.86 Steel and iron - Determination of total carbon content - Infrared absorption method after combustion in an induction furnace GB/T 226 Test method for macrostructure and defect of steel by etching GB/T 228.1 Metallic materials - Tensile testing - Part 1: Method of test at room temperature GB/T 232 Metallic materials - Bend testing method GB/T 247 General rule of package, mark and certification for steel plates (sheets) and strips GB/T 699 Quality carbon structure steels GB/T 701 Hot rolled low carbon steel wire rods GB/T 702 Hot-rolled steel bars - Dimensions, shape, weight and tolerances GB/T 708 Dimension, shape, weight and tolerance for cold-rolled steel strip and sheet GB/T 709 Dimension, shape, weight and tolerances for hot-rolled steel plates and sheets GB/T 711 Hot-rolled quality carbon structural steel plates sheets and strips GB/T 905 Dimension, shape, weight and tolerance for cold-drawn round, square and hexagonal steels GB/T 908 Forged bars - Dimensions, shape, weight and tolerances GB/T 1979 Standard diagrams for macrostructure and defect of structural steels GB/T 2101 General requirement of acceptance, packaging, marking and certification for section steel GB/T 2975 Steel and steel products - Location and preparation of samples and test pieces for mechanical testing GB/T 3078 Quality structural steel cold drawn bars GB/T 3656 Methods of coercivity measurement of magnetic iron and magnetically soft alloy by pulling out procedure GB/T 4336 Carbon and low-alloy steel - Determination of multi-element contents - Spark discharge atomic emission spectrometric method (routine method) GB/T 4340.1 Metallic materials - Vickers hardness test - Part 1: Test method GB/T 13012 Methods of measurement of d.c. magnetic properties of magnetically soft materials

Contents Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Classification 5 Order information 6 Dimension, shape and weight 7 Technical requirements 8 Test methods 9 Inspection rules 10 Packaging, marking and quality certificate Annex A (Informative) Reference values of chemical composition (melting analysis) for magnetic iron