很多人认为工字钢是国内的叫法，H型钢是国外的叫法，其实这个认知是错误的。H型钢和工字钢从形状上来说是不一样的，下面
济南型钢厂家来讲讲H型钢与工字钢的区别和用途说明。
Many people think that I-beam is a domestic term and H-beam is a foreign term. In fact, this cognition is wrong. H-beam and I-beam are different from each other in terms of shape. Next, Jinan section steel manufacturer will talk about the differences and uses of H-beam and I-beam.
1、工字型钢不论是普通型还是轻型的，由于截面尺寸均相对较高、较窄，故对截面两个主轴的惯性矩相差较大，因此，一般仅能直接用于在其腹板平面内受弯的构件或将其组成格构式受力构件。对轴心受压构件或在垂直于腹板平面还有弯曲的构件均不宜采用，这就使其在应用范围上有着很大的局限。
1. The moment of inertia of the two principal axes of the section is relatively different due to the relatively high and narrow section size of the I-shaped steel, whether it is ordinary or light, so it can only be directly used for members bent in the plane of its web or to form a lattice load-bearing member. It is not suitable for axial compression members or members with bending perpendicular to the plane of the web, which limits its application.
2、H型钢属于高效经济截面型材(其它还有冷弯薄壁型钢、压型钢板等)，由于截面形状合理，它们能使钢材更高地发挥效能，提高承裁能力。不同于普通工字型的是H型钢的翼缘进行了加宽，且内、外表面通常是平行的，这样可便于用高强度螺栓和其他构件连接。其尺寸构成合理系列，型号齐全，便于设计选用（除了吊车梁用工字型钢） 。
2. H-shaped steel is an efficient and economical section profile (other cold-formed thin-walled steel, profiled steel, etc.). Because of the reasonable section shape, they can make the steel more efficient and improve the cutting capacity. What is different from the common I-shaped steel is that the flange of H-shaped steel is widened, and the inner and outer surfaces are usually parallel, which makes it easy to connect with other components with high-strength bolts. Its size composition is reasonable and its model is complete, which is convenient for design and selection (except for I-shaped steel for crane beam).
3、H型钢的翼缘都是等厚度的，有轧制截面，也有由3块板焊接组成的组合截面。工字钢都是轧制截面，由于生产工艺差，翼缘内边有1：10坡度。Ｈ型钢的轧制不同于普通工字钢仅用一套水平轧辊，由于其翼缘较宽且无斜度(或斜度很小)，故须增设一组立式轧辊同时进行辊轧，因此，其轧制工艺和设备都比普通轧机复杂。国内可生产的大轧制H型钢高度为800ｍｍ，超过了只能是焊接组合截面。
3. The flange of H-beam is of equal thickness, with rolling section and combined section composed of three plates welded. All I-beams are rolled sections. Due to poor production technology, the inner edge of the flange has a 1:10 slope. The rolling of H-beam is different from that of ordinary I-beam with only one set of horizontal rollers. Because of its wide flange and no slope (or small slope), it is necessary to add a set of vertical rollers to roll at the same time. Therefore, its rolling process and equipment are more complex than ordinary rolling mill. The height of the large rolled H-shaped steel that can be produced in China is 800mm, which is more than the welded composite section.
4.工字钢的边长小，高度大，只能承受单方向的力。
4. The side length of I-beam is small and the height is large, and it can only bear the force in one direction.
5.H型钢槽深，厚度大，可以承受两个方向的力。
5. The H-shaped steel groove is deep and thick, and can bear the force in two directions.
6.随着钢结构建筑的发展需要，只有工字钢是不行的，还要加厚工字钢，用于承重柱容易失稳。
6. With the development of steel structure buildings, only I-beam is not feasible, and I-beam should be thickened, which is easy to lose stability when used for load-bearing columns.
7.工字钢只能用于横梁，而H型钢才能用于结构的承重柱。
7. I-beams can only be used for beams, while H-beams can only be used for load-bearing columns of structures.
8.H型钢是一种断面力学性能较工字钢优良的经济型断面钢材，因其断面的形状与英文字母“H”相同而得名。热轧H型钢的翼缘比工字钢宽、侧向刚度大、抗弯能力强。同等规格下H型钢理重较工字钢轻。
8. H-shaped steel is an economic section steel with better mechanical properties than I-shaped steel. It is named because its section shape is the same as the English letter "H". The flange of hot-rolled H-beam is wider than that of I-beam, with large lateral stiffness and strong bending resistance. The weight of H-shaped steel is lighter than I-shaped steel under the same specification.
9.工字钢翼缘是变断面靠腹板部厚，外部薄；H型钢的翼缘是等断面。
9. The flange of I-beam is thick at the web of variable section and thin at the outside; The flange of H-shaped steel is of equal section.
This is the difference between H-shaped steel and I-shaped steel and the use description. If you have any doubts or needs about this, please come to our website http://jyjfsj.com Ask!
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