GB/T 10121 Steel products.Method of magnetic particle inspection of tower sample
GB/T 10561 Standard grading chart microscopic examination method for determination of non-metallic inclusion content in steel*, 2023-05-23 Update
GB/T 11261 Steel and lron - Determination of oxygen content - The pulse heating inert gas fusion-infra-red absorption method
GB/T 15711 Inspection of non-metallic inclusions of steel—Etching test method of tower samples
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 32548 Steel and iron.Determination of tin, antimony, cerium, lead and bismuth.Inductively coupled plasma mass spectrometric method
GB/T 36026 High-strength corrosion-resistant alloy bars for oil and gas engineering
GB/T 4162 Method for ultrasonic testing of forged and rolled steel bars*, 2022-04-15 Update
GB/T 4336 Determination of multi-element content in carbon steel and medium and low alloy steel Spark discharge atomic emission spectrometry (conventional method) Amendment No. 1
GB/T 6394 Determination of estimating the average grain size of metal
GB/T 702 Hot-rolled steel bars—Dimensions,shape,weight and tolerances
GB/T 905 Dimension, shape, weight and tolerance for cold-drawn round, square and hexagonal steels
GB/T 908 Forged bars for dimensions,shape,weight and tolerances
YB/T 4395 Steel.Determination of molybdenum, niobium and tungsten contents.Inductively coupled plasma atomic emission spectrometric method