In building materials industry, the development of all kinds of pipes is different, because of its own characteristics different, the connection between the pipes also has certain distance.Square steel tube is one of many pipes in the buildi...英国华人论坛
ASTM steel pipe is carbon steel pipe that has been created by ASTM and meets certain performance requirements. Manufacturers follow ASTM standard voluntarily.ASTM International is an organization that publishes documents and develops standa...英国华人论坛
For the astm standard, different material with different steel grade,besides, their mechanical properties and chemical composition, metallurgical properties are all different. There are list for astm standard with different steel grade.ASTM...英国华人论坛
ASTM A252 standard specification for welded steel pipe piles. This specification covers nominal wall cylindrical structural steel pipe piles in which the steel cylinder acts as a permanent load-carrying member or as a shell to form cast-in...英国华人论坛