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Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, Uzbekistan, Austria, Germany, Hungary, Liechtenstein, Poland, Slovakia, Switzerland, The Czech Republic, Chad, Central African Republic, Cameroon, Equatorial Guinea, Gabon, The Republic of Congo , The Democratic Republic of the Congo, The Democratic Republic of Sao Tome and Principe, Belize, Costa Rica, Guatemala, Honduras, Nicaragua, Panama, Salvador, China, Hong Kong-China, Japan, Mongolia, Macao-China, North Korea, South Korea, Taiwan-China, Belarus, Estonia, Kosovo, Latvia, Lithuania, Moldova, Russia, Ukraine, Burundi, Djibouti, Ethiopia, Eritrea, Kenya, Mayotte, Mauritius, Rwanda, Reunion, Somalia, Seychelles, South Sudan, Tanzania, Uganda, Aland Islands, Bonaire,SaintEustatiusAndSaba, Denmark, Finland, Faroe Islands, Iceland, Norway, Sweden, Algeria, Egypt, Libya, Morocco, Sudan, Tunisia, Antigua and Barbuda, Anguilla, Aruba, Bahamas, Barbados, Bermuda, Canada, Cuba, Commonwealth of Dominica, Cayman Islands, Dominican, Grenada, Greenland, Guadeloupe, Haiti, Jamaica, Jersey, Mexico, Martinique, Montserrat, Puerto Rico, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Saint Pierre And Miquelon, Sint Maarten, Trinidad and Tobago, United States, United States Minor Outlying Islands, U.S.Virgin Islands, Australia, American Samoa, Cocos Islands, Fiji, French Polynesia, Guam, Kiribati, Micronesia, Marshall Islands, New Zealand, Nauru, Niue, Northern Mariana Islands, New Caledonia, Papua New Guinea, Palau, Solomon Islands, Samoa, Tuvalu, Tonga, The Cook Islands, Tokelau, Vanuatu, Wallis And Futuna, Brunei, Cambodia, East Timor, Indonesia, Laos, Myanmar, Malaysia, Philippines, Singapore, Thailand, Vietnam, Bhutan, Bangladesh, India, Maldives, Nepal, Pakistan, Sri Lanka, Andorra, Albania, Bulgaria, Bosnia and Herzegovina, Croatia, French Southern Territories, Greece, Italy, Malta, Macedonia, Montenegro, Portugal, Romania, Spain, San Marino, Slovenia, Serbia, Vatican, Angola, Botswana, Comoros, Lesotho, Malawi, Mozambique, Madagascar, Namibia, South Africa, Swaziland, Saint Helena, Zambia, Zimbabwe, Argentina, Brazil, Colombia, Chile, Curacao, Ecuador, Falkland Islands, French Guiana, Guyana, Llívia, Peru, Paraguay, Suriname, Uruguay, Venezuela, Azerbaijan, Armenia, Afghanistan, Bahrain, Cyprus, Georgia, Iran, Iraq, Israel, Jordan, Kuwait, Lebanon, Oman, Qatar, Syria, State of Palestine, Saudi Arabia, Turkey, United Arab Emirates, Yemen, Belgium, France, Guernsey, Ireland, Isle Of Man, Luxembourg, Monaco, Netherlands, United Kingdom, Burkina Faso, Benin, Cape Verde, Côte d'Ivoire, Gambia, Guinea, Guinea-Bissau, Ghana, Liberia, Mauritania, Mali, Niger, Nigeria, Senegal, Sierra Leone, Togo, Western SaharaHot - rolled H - shaped steel is a commonly - used section steel material and has the following characteristics:
Reasonable cross - sectional shape
The cross - sectional shape of hot - rolled H - shaped steel is similar to the letter "H" and consists of two flange plates and a web plate. This cross - sectional shape enables the steel to have relatively uniform mechanical properties in all directions and can effectively utilize the mechanical properties of the steel. When subjected to axial compression or tension, the flange mainly bears bending moment and the web mainly bears shear force. The division of labor is clear and the material utilization rate is high.
For example, when hot - rolled H - shaped steel is used as columns in building structures, it can well bear the vertical loads of buildings and evenly transfer the pressure to the foundation.
Superior mechanical properties
High strength: It has relatively high yield strength and tensile strength and can bear large loads. This enables it to be widely used in engineering projects such as large - scale buildings and bridges that have high requirements for structural strength. In the construction of heavy - duty industrial plants, hot - rolled H - shaped steel can bear the weight of cranes, the self - weight of equipment and dynamic loads during the production process.
Good toughness: It has good toughness and is not prone to brittle fracture when subjected to impact loads or accidental overloading, thus ensuring the safety of the structure. For example, in the building structures in earthquake - prone areas, its good toughness can enable the structure to have better energy - dissipation capacity under the action of an earthquake and reduce the risk of structural damage.
Strong stability: Due to the characteristics of its cross - sectional shape, hot - rolled H - shaped steel has relatively good stability when under compression. Under the condition of a reasonable slenderness ratio, it can effectively resist the instability of components. For example, in the frame structure of multi - storey buildings, the hot - rolled H - shaped steel used as columns can still remain stable at a relatively high height.
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