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
