I-beam
I-beam, also known as a steel beam (English name Universal Beam), is a long steel material with an I-shaped cross-section. It is mainly divided into ordinary I-beams, light I-beams, and wide-flange I-beams. At the same height, light I-beams have narrower flanges, thinner webs, and lighter weight. Wide-flange I-beams are also known as H-beams, and the cross-sectional feature is that the two legs are parallel and there is no slope on the inside of the legs. Ordinary I-beams and light I-beams have formed national standards.
Details Introduction
I-beam, also known as steel beam (English name Universal Beam), is a long steel material with an I-shaped cross-section. It is mainly divided into ordinary I-beams, light I-beams, and wide-flange I-beams. At the same height, light I-beams have narrow flanges, thin webs, and light weight. Wide-flange I-beams are also known as H-beams, and their cross-sectional feature is that the two legs are parallel and there is no slope on the inside of the legs. Ordinary I-beams and light I-beams have formed national standards.
The characteristics of I-beams include:
- Light weight, convenient and fast engineering construction.
- Anti-aging, long service life.
- Strong design scheme, easy to laser cut and weld, and the length of the I-beam can be adjusted as needed.
- It has the characteristics of dielectric strength, good magnetic permeability, fire safety and flame retardancy, and insulation and heat preservation.
- The front and rear are symmetrical, which meets people's aesthetic.
I-beams are widely used in construction, bridges, machinery manufacturing, mining and other fields. In the construction field, it can be used to build roofs, construct bridges, and support building structures. In the field of machinery manufacturing, it can be used to manufacture machine parts, forming molds, etc. In the mining field, it can be used to manufacture mine supports, mining lifting equipment, etc.
The production process of I-beams mainly includes chemical composition analysis and physical performance testing, rolling, cutting, processing, spraying and quality inspection. Among them, rolling is a key production link, including hot rolling and cold rolling. Hot rolling is to send the heated billet into the pre-rolling mill for rough rolling, and then through the re-heating mill for finish rolling, so that the billet reaches the required size and shape. Cold rolling is to anneal the hot-rolled billet, and then cold-roll it through a cold-rolling mill to make the size and shape of the I-beam more accurate.
In general, I-beam is an important building material, and its unique shape and excellent performance make it play an important role in various fields.
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ASTM A53 is the 'Standard Specification for Black and Hot-Dipped, Zinc-Coated, Welded and Seamless Steel Pipe' established by the American Society for Testing and Materials (ASTM), primarily used in pressure piping and mechanical structure fields.
This standard is issued under the fixed designation A500/A500M; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (ε) indicates an editorial change since the last revision or reapproval.
Applicable to: construction, machinery manufacturing, photovoltaic, furniture, special vehicle frame manufacturing, container manufacturing, decoration, etc.
This standard specifies the manufacturing requirements for seamless and welded pipes for pipeline transportation systems in the petroleum and natural gas industries, including two product specification levels (PSL1 and PSL2). This specification does not apply to cast iron pipes.
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