This standard specifies the grade, size, shape and allowable deviation, technical requirements, test methods, inspection rules, packaging, marks and quality certificates of iron-cobalt-vanadium permanent magnet alloys. This standard applies to iron-cobalt-vanadium alloy cold-drawn wires and cold-rolled strips (hereinafter referred to as alloy materials) for making small-section permanent magnets and recording materials.
GB/T 13012 Methods of measurement of d.c magnetic properties of magnetically soft materials
GB/T 20066 Steel and iron.Sampling and preparation of samples for the determination of chemical composition
GB/T 20123 Steel and iron - Determination of total carbon and sulfur content Infrared absorption method after combustion in an induction furnace (routine method)
GB/T 223.13 Methods for chemical analysis of iron,steel and alloy The ammonium ferrous sulfate titration method for the determination of vanadium content
GB/T 223.20 Methods for chemical analysis of iron steel and alloy.The Potentiometric titration method for the determination of cobalt content
GB/T 223.23 Iron,,steel and alloy.Determination of nickel content.The dimethylglyoxime spectrophotometric method
GB/T 223.5 Steel and iron.Determination of acid-soluble silicon and total silicon content.Reduced molybdosilicate 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 223.64 Iron,steel and alloy.Determination of manganese content.Flame atomic absorption spectrometric method
GB/T 223.68 Methods for chemical analysis of iron, steel and alloy. The potassium iodate titration method after combustion in the pipe furnace for the determination of sulfur content
GB/T 223.69 Iron,steel and alloy.Determination of carbon contents.Gas-volumetric method after combustion in the pipe furnace
YB/T 5242 General rules of packaging, marking and quality certification for precision alloys