What are the main standards of high quality carbon structural steel

The impurity content of S and P in high quality carbon structural steel is lower than that in general carbon structural steel, generally below 0.035%. According to the carbon content from low to high, it can be divided into low carbon steel, medium carbon steel and high carbon steel; according to the manganese content, it can be divided into general Mn content and high Mn content steel. The steel is mostly rolled (or forged) into long products (round, square and flat steel), or made into plate, strip, tube and wire. Users usually use it after normalizing or tempering, and it is used as the structural part of machinery or machine.

The basic standard of high quality carbon structural steel is GB / T 699, and the relevant plate and strip standards mainly include: GB / T 710, GB / T 711, GB / T 13237, GB / T 3522, GB / T 8749 and relevant special standards, such as GB / T 713, GB / T 5213, etc.; the relevant pipe standards include: GB / T 3087, GB / T 7094, GB 5310, GB / T 6479, GB / T 8162, GB / T 8163, etc. The foreign standards similar to GB are: ASTM A29, ASTM A20, ASTM A53, ASTM A556; JIS G 3106, JIS G 3444; EN 10083-1 (2), EN 10111, EN 10130, EN 10132, EN 10028-2 ~ 6, EN 10296, EN 10216; ISO 4996, ISO 4950, ISO 9328-2 ~ 6, ISO 9329-1 ~ 3, etc.