H型鋼，是一種截面面積分配更加優(yōu)化、強重比更加合理的經(jīng)濟斷面型材，因其斷面與英文字母“H”相同而得名。H型鋼的兩條外邊內(nèi)側(cè)沒有斜度，是平直的。這使得H型鋼的焊接拼接比工字鋼操作簡單，單位重量的力學(xué)性能更好，可以節(jié)省大量的材料和施工時間。

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 have 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 save a lot of material and ctruction time.

H型鋼屬于經(jīng)濟裁面型材(其它還有冷彎薄壁型鋼、壓型鋼板等)，由于截面形狀合理，它們能使鋼材更高地發(fā)揮效能，提高承裁能力。

H steel is an efficient and economical cutting section (other cold-formed thin-walled steel and profiled steel sheets). Because of the reasonable shape of the section, they can make the steel play a more effective role and improve the bearing capacity.

型材按使用部門分類有鐵路用型材（鋼軌、魚尾板、道岔用軌、車輪、輪箍）、汽車用型材（輪輞、輪胎擋圈和鎖圈）、造船用型材（L型鋼、球扁鋼、Z字鋼、船用窗框鋼）、結(jié)構(gòu)和建筑用型材（H型鋼、工字鋼、槽鋼、角鋼、吊車鋼軌、窗框和門框用材、鋼板樁等）、礦山用鋼（U型鋼、槽幫鋼、礦用工字鋼、刮板鋼等）、機械制造用異型材等。Itcanonlybeartheforceofthesingledirection。按斷面尺寸大小分類。

板材是指一般的壓型鋼板平板等,都是較薄的鋼板,通常都作為屋面或圍護墻等用型材是指熱軋的冷彎的如工字鋼H鋼C型鋼Z型鋼,通常都作主結(jié)構(gòu)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.