This standard specifies the product classification, technical requirements, test methods, inspection rules, packaging, storage and transportation, marking and quality certificates of ferromanganese. This standard applies to ferromanganese as a deoxidizer and alloying element additive for steelmaking and foundry.
GB/T 3795-2014 Referenced Document
GB/T 13247 Methods for sampling and testing the grain size of ferroalloys products*, 2019-10-18 Update
GB/T 3650 The general rules for inspection,packing,storing,transportation,marking and certification of ferroalloy
GB/T 4010 Ferroallys sampling and preparation of samples for chemical analysis*, 2015-09-11 Update
GB/T 5686.1 Ferromanganese,ferromanganese-silicon,nitrogen-bearing ferromanganese and manganese metal—Determination of manganese content—Potentiometric method, titrimetric method after ammonium nitrate oxidation*, 2022-10-14 Update
GB/T 5686.2 Ferromanganese, ferromanganese-silicon, nitrogen-bearing ferromanganese and manganese metal—Determination of silicon content—Molybdenum blue spectrophotometric method, silicon potassium fluoride titri*, 2022-10-14 Update
GB/T 5686.4 Ferromanganese, ferromanganese-silicon, nitrogen-bearing ferromanganese and manganese metal—Determination of phosphorus content—Molybdenum blue spectrophotometric method and bismuth phosphomolybdate b*, 2022-10-14 Update
GB/T 5686.5 Determination of carbon content of ferromanganese, manganese-silicon alloy, ferromanganese nitride and metallic manganese by infrared absorption method, gas volume method, gravimetric method and coulometric method*, 2023-11-27 Update
GB/T 5686.7 Ferromanganese,ferromanganese-silicon,nitrogen-bearing ferromanganese and manganese metal—Determination of sulfur content—Infrared absorption method and combustion-neutralization method*, 2022-12-30 Update