Square Steel Tube Size

1. The allowable deviation of the wall thickness of the square steel tube, when the wall thickness is less than 10 mm, does not exceed 10% of the nominal wall thickness, and when the wall thickness is greater than 10 mm, it does not exceed 8% of the wall thickness.

2. The usual conveying length of square steel tubes is 4000 mm-12000 mm, of which 6000mm and 12000mm are the majority. Square steel tubes are allowed to transport short-length and non-cut-to-length products not less than 2000 mm, and can also be delivered in the form of mouthpieces, but the mouthpiece should be cut off when using the mouthpiece, and the weight of short-length and non-cut-to-length products should not exceed the total delivery 5% of the quantity, and the square tube with a theoretical weight greater than 20kg/m should not exceed 10% of the total delivery quantity.

3. The curvature of the square steel tube is not greater than 2mm per meter, and the total curvature is not greater than 0.2% of the total length.

Square steel tube use: Widely used in machinery manufacturing, construction, the metallurgical industry, agricultural vehicles, agricultural greenhouses, the automobile industry, railways, highway guardrails, container skeletons, furniture, decoration, steel structures, etc. 

Used for glass curtain walls, door and window decoration, steel structure, guardrails, machinery manufacturing, automobile manufacturing, home appliance manufacturing, shipbuilding, container manufacturing, electric power, agricultural construction, agricultural greenhouse, bicycle rack, motorcycle rack, shelf, fitness equipment, leisure and tourism products, steel furniture, oil casing, tubing, and line pipe.

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