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China, Japan, South Korea, North Korea, Mongolia, Hong Kong-China, Macao-China, Taiwan-China, Vietnam, Laos, Cambodia, Thailand, Myanmar, Malaysia, Singapore, Indonesia, Brunei, Philippines, East Timor, Nepal, Bhutan, India, Pakistan, Bangladesh, Sri Lanka, Maldives, Kazakhstan, Kyrgyzstan, Tajikistan, Uzbekistan, Turkmenistan, Iran, Iraq, Azerbaijan, Georgia, Armenia, Turkey, Syria, Jordan, Israel, State of Palestine, Saudi Arabia, Bahrain, Qatar, Yemen, Oman, United Arab Emirates, Kuwait, Lebanon, Cyprus, Afghanistan, Norway, Sweden, Finland, Denmark, Iceland, Aland Islands, Bonaire,SaintEustatiusAndSaba, Faroe Islands, Estonia, Latvia, Lithuania, Belarus, Russia, Ukraine, Moldova, Kosovo, Germany, Poland, The Czech Republic, Slovakia, Hungary, Austria, Liechtenstein, Switzerland, United Kingdom, Ireland, Netherlands, Belgium, Luxembourg, France, Monaco, Guernsey, Isle Of Man, Spain, Portugal, Andorra, Italy, Greece, Malta, Vatican, San Marino, Slovenia, Croatia, Albania, Romania, Bulgaria, Serbia, Macedonia, Bosnia and Herzegovina, Montenegro, French Southern Territories, Egypt, Sudan, Tunisia, Algeria, Libya, Morocco, Ethiopia, Somalia, Eritrea, Djibouti, Uganda, Tanzania, Rwanda, Burundi, Seychelles, Kenya, South Sudan, Reunion, Mayotte, 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, Mauritania, Western Sahara, Senegal, Gambia, Mali, Burkina Faso, Guinea, Guinea-Bissau, Cape Verde, Sierra Leone, Liberia, Republic of Côte d'Ivoire, Ghana, Togo, Benin, Niger, Nigeria, Angola, Zambia, Malawi, Zimbabwe, Mozambique, Republic of Botswana, Namibia, Republic of South Africa, Swaziland, Lesotho, Madagascar, Mauritius, Comoros, Saint Helena, Australia, New Zealand, Papua New Guinea, Solomon Islands, Vanuatu, Micronesia, Marshall Islands, Palau, Fiji, Kiribati, Nauru, Tuvalu, Samoa, Tonga, Niue, The Cook Islands, American Samoa, Cocos Islands, Guam, Northern Mariana Islands, New Caledonia, French Polynesia, Tokelau, Wallis And Futuna, Canada, United States, Mexico, Bahamas, Cuba, Jamaica, Haiti, The Dominican Republic, Saint Kitts and Nevis, Antigua and Barbuda, Commonwealth of Dominica, Saint Lucia, Saint Vincent and the Grenadines, Barbados, Grenada, Trinidad and Tobago, Anguilla, Bermuda, Greenland, Guadeloupe, Jersey, Cayman Islands, Martinique, Montserrat, Saint Pierre And Miquelon, Puerto Rico, Sint Maarten, United States Minor Outlying Islands, U.S.Virgin Islands, Guatemala, Belize, Salvador, Honduras, Nicaragua, Costa Rica, Panama, Colombia, Venezuela, Guyana, Suriname, Ecuador, Peru, Llívia, Brazil, Chile, Argentina, Uruguay, Paraguay, Curacao, Falkland Islands, French GuianaSquare cross-section with stable structure
The cross-section is square, with side lengths typically ranging from 5mm to 200mm and uniform wall thickness (2mm to 30mm). It features high bending and torsional stiffness, suitable for withstanding multi-directional loads (e.g., mechanical guides, frame columns).
Balanced mechanical properties
Tensile strength ≥345MPa (Q345 square steel). With the same cross-sectional area, its bending resistance is 15%~20% higher than round steel, making it ideal for structures requiring planar support (e.g., shelf beams, bridge tie rods).
Strong processing adaptability
Smooth surface allows direct machining such as cutting, drilling, and tapping (e.g., manufacturing mold guide pillars), or welding into complex components (high-precision splicing for square steel frames).
Facilitates surface treatment: Galvanizing and chrome plating ensure uniform coating, with better anti-corrosion effect than special-shaped steel (e.g., hot-dip galvanized square steel for outdoor guardrails).
Diversified application scenarios
Construction engineering: Steel structure purlins, curtain wall keels (square steel welded with embedded parts to form a support system).
Mechanical manufacturing: Industrial robot arms, machine tool columns (utilizing rigidity to ensure motion accuracy).
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