GB/T 1591-2018 Translated English of Chinese Standard. (GBT 1591-2018, GB/T1591-2018, GBT1591-2018): High strength low alloy structural steels
https://www.chinesestandard.net, 2018 M08 10 - 30 pages
This standard specifies the grade indication method, ordering content, size, shape, weight, technical requirements, test methods, inspection rules, packaging, marking and quality certificate of high strength low alloy structural steel. This standard is applicable to high strength low alloy structural steel plates, steel strips, steel sections, steel bars, etc. for general structural and engineering purposes. Its chemical composition is also applicable to steel billets.
allowable deviation alloy structural steel analysis of iron applicable to steel as-rolled Bending test carbon content carbon equivalent value chemical analysis Chemical composition mass composition mass fraction content GB/T crack sensitivity index delivery status code designation comparison Designations and chemical deviation of hot-rolled diameter mm Steel furnace-number heat treatment impact test iron oxide least element Longitudinal Transverse Longitudinal low alloy structural Methods for chemical niobium Nominal thickness Non-destructive testing normalized/normalizing rolling normalizing rolling steel ordering content phase transition Pinyin provisions of GB/T quality certificate Quality grade quality-grade requirements of Table requirements see clause sections and steel shock absorption energy spectrophotometric method GB/T Standard steel and alloy steel bars steel plate steel sections steel shall comply steel strip steel-grade supplier surface quality tempering status Tensile properties Tensile strength tensile test test methods thermomechanical processed TMCP thickness or diameter titanium total aluminium Transverse Longitudinal Transverse upper yield strength vanadium weld crack sensitivity