There is a wide range of hot-rolled structural steel sections in the Chinese GB standards. Today we prepare some tables to show the "H" steels and their sectional properties.
Chinese GB Standards for structural steel
The group of Chinese (GB) standard specifications covers iron and carbon and alloy steel within different delivery conditions such as plates, strips, shits, bars, wires, castings, forgings etc. All character set standards that originate in the PRC have designations that begin with "GB". GB is an abbreviation of Guojia Biaozhun, meaning "national standard".
The GB designations for non-alloy common steels and high strength low-alloy (HSLA) steels use the prefix letter Q, followed by the yield strength value (MPa). For example, Q235, Q345, Q390 denote non-alloy common steels and HSLA steels with a yield strength of 235, 355, and 390 MPa, respectively.
In the cases that Chinese steel substitutions are needed for Australian projects, builders or engineers can select from a wide range of materials and steel sections, most of which have little deviation from the Australian Standards. Here is an example: steel grade 350 requirements from AS3679.1 comparing to an SGS lab report on a Q355B beam.
You can consult your engineers about the possibility to use Chinese GB "equivalent" steel.
