Technical knowledge of square tubes and rectangular tubes


Shandong Jinan New Era specializes in the production of square tubes and rectangular tubes. Our company has professional technicians and strong production capacity, and is favored by enterprises with fast delivery, large inventory and many models. Our company's square tube relies on High quality and competitive prices are widely used by companies. Our company's engineers have summed up some technical knowledge about square tube and tube according to their usual work experience, and share it with the company. If you have any questions, please consult Shandong Jinan New Era.

Square tube is also known as square and rectangular cold-formed hollow steel, referred to as square tube and rectangular tube, codenamed F and J respectively.

1. The allowable deviation of the wall thickness of the rectangular tube shall not exceed 10% of the nominal wall thickness when the wall thickness is not more than 10 mm, and the positive and negative 8% of the wall thickness when the wall thickness is greater than 10 mm, the angle and the weld area Except for wall thickness.

2. The normal delivery length of the rectangular tube is 4000mm-12000mm, which is mostly 6000mm and 12000. The square tube allows the delivery of short and non-scheduled products of not less than 2000 mm, and can also be delivered in the form of an interface tube, but the interface tube should be removed during use. The weight of short and non-scheduled products shall not exceed 5% of the total delivery volume, and the square tube with theoretical weight greater than 20kg/m shall not exceed 10% of the total delivery volume.

3. The bending of the rectangular tube shall not exceed 2 mm per meter, and the total bending shall not exceed 0.2% of the total length.



Executable standard

GB/T6728-2002, GB/T6725-2002, GBT3094-2000, JG 178-2005, ASTM A500 JIS G3466, EN10210 or technical agreement Application areas: widely used in machinery manufacturing, construction, metallurgical industry, agricultural vehicles, agricultural greenhouses , automotive industry, railways, highway guardrails, container skeletons, furniture, decoration and steel structure.



Jinan New Era specializes in the production of various materials, various specifications, various types of square tubes and rectangular tubes, and provides professional technical services, welcome to come to consult.



Keywords: square tube, square tube, rectangular tube, Jinan square tube, mountain oriental tube



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