H型钢，是一种截面面积分配更加优化、强重比更加合理的经济断面型材，因其断面与英文字母“H”相同而得名。H型钢的两条外边内侧没有斜度，是平直的。这使得H型钢的焊接拼接比工字钢操作简单，单位重量的力学性能更好，可以节省大量的材料和施工时间。

H steel is a more efficient and economical section with high section area distribution, because its section is the same as the English letter "H". The two sides of the H type steel h***e no slope inside the inner side, and they are straight. This makes the welding and splicing of H steel simpler than I-steel, better mechanical properties per unit weight, and can s***e a lot of material and ctruction time.

槽钢分普通槽钢和轻型槽钢。热轧普通槽钢的规格为5-40#。经供需双方协议供应的热轧变通槽钢规格为6.5-30#。槽钢主要用于建筑结构、车辆制造、其它工业结构和固定盘柜等，槽钢还常常和工字钢配合使用。

Channel steel is divided into ordinary channel steel and light channel steel. The specification of hot rolled ordinary channel steel is 5-40#. The specification of hot rolled and variable channel steel supplied by both suppliers and suppliers is 6.5-30#. Channel steel is mainly used in building structure, vehicle manufacturing, other industrial structure and fixed disk cabinet, and channel steel is often used in conjunction with I-steel.

板材是指一般的压型钢板\平板等,都是较薄的钢板,通常都作为屋面或围护墙等用型材是指热轧的\冷弯的如工字钢\H钢\C型钢Z型钢,通常都作主结构用。

Plate refers to the general profiled steel plate, flat plate, etc., which are thin steel plates, usually used as roofing or retaining walls.

Profiles refer to hot rolled cold-formed ones, such as I-steel, \H steel, \C steel and Z section steel, which are usually used for main structure.