工字鋼如名所示，是一種“工”字形截面型鋼，上下翼緣內(nèi)表面有傾斜度，一般為1：6，使得翼緣外薄而內(nèi)厚，因此造成工字鋼在兩個主平面的截面特性相差巨大，在應(yīng)用中難以發(fā)揮剛才的強(qiáng)度特性。型材既能單獨使用也能進(jìn)一步加工成其他制造品，常用于建筑結(jié)構(gòu)與制造安裝。雖然工字鋼市場上上也出現(xiàn)了加厚工字鋼，但工字鋼的結(jié)構(gòu)已經(jīng)決定了其抗扭性能短板。

I like the name suggests, is a kind of I-shaped section steel flange on the inner surface of slope is generally 1:6, the flange and the thickness of thin, resulting in two main characteristics of I-beam section plane is huge, just to play strength characteristics in the application. Although the I-steel market has also appeared to be thickened I-steel, the structure of I-steel has already determined its torsional performance.

不同于普通工字型的是H型鋼的翼緣進(jìn)行了加寬，且內(nèi)、外表面通常是平行的，這樣可便于用高強(qiáng)度螺栓和其他構(gòu)件連接。其尺寸構(gòu)成合理系列，型號齊全，便于設(shè)計選用。（除了吊車梁用工字型鋼）。

Unlike the ordinary I-type, the flange of H steel is widened, and the inner and outer surfaces are usually parallel, so that it can be easily connected with high-strength bolts and other components. Its size is a reasonable series, and the model is complete, which is convenient for the design. (except for crane girder with I-type steel)

槽鋼的原料鋼坯為含碳量不超過0.25%的碳結(jié)鋼或低合金鋼鋼坯。成品槽鋼經(jīng)熱加工成形、正火或熱軋狀態(tài)交貨。其規(guī)格以腰高*腿寬(b)*腰厚(d)的毫米數(shù)表示，如150*78*9。

The raw billet of the channel steel is a carbon steel or low alloy steel billet containing less than 0.25% carbon content. The finished channel steel is delivered by hot forming, normalizing or hot rolling. Its specificati are represented by the millimeter number of waist height (H) * leg width (b) * waist thickness (d), such as 150*78*9.