Main products: square pipe, square rectangular pipe, seamless square pipe, galvanized square pipe, galvanized pipe
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Q355b square tube
1. The allowable deviation of the wall thickness of square pipe shall not exceed plus or minus 10% of the nominal wall thickness when the wall thickness is not greater than 10mm, and plus or minus 8% of the wall thickness when the wall thickness is greater than 10mm, except for the wall thickness of corner and weld area.
2. The usual delivery length of square rectangular pipe is 4000mm-12000mm, mostly 6000mm and 12000mm. The rectangular tube is allowed to deliver short and non fixed length products not less than 2000mm, or in the form of interface tube, but the Demander shall cut off the interface tube when using it. The weight of short length and non fixed length products shall not exceed 5% of the total delivery volume, and for square moment tubes with theoretical weight greater than 20kg / m, it shall not exceed 10% of the total delivery volume
3. The bending degree of square rectangular pipe shall not be greater than 2mm per meter, and the total bending degree shall not be greater than 0.2% of the total length
Application fields: it is widely used in machinery manufacturing, construction industry, metallurgical industry, agricultural vehicles, agricultural greenhouses, automobile industry, railways, highway guardrails, container skeleton, furniture, decoration and steel structure.
It is used for engineering construction, glass curtain wall, door and window decoration, steel structure, guardrail, machinery manufacturing, automobile manufacturing, household appliance manufacturing, shipbuilding, container manufacturing, electric power, agricultural construction, agricultural greenhouse, bicycle frame, motorcycle frame, shelf, fitness equipment, leisure and tourism supplies, steel furniture, various specifications of oil casing, oil pipe and pipeline pipe, water, gas Sewage, air, heating and other fluid transportation, fire fighting and support, construction industry, etc.