Chongqing Renbang Company maintains a large inventory and strives for a comprehensive range of products, superior quality, and competitive prices. The company emphasizes customer and market orientation, continuously expanding its service scope, enhancing depth and accuracy, and has become the preferred supplier for numerous steel end-users.
Standard delivery lengths for square tubes are typically 4000mm to 12000mm, with 6000mm and 12000mm being the most common. Square tubes can be delivered in short lengths of not less than 2000mm or in non-standard lengths, and can also be supplied in the form of joint tubes, but the buyer must remove the joint tubes upon use. The weight of short lengths and non-standard products should not exceed 5% of the total delivery quantity, and for square tubes with a theoretical weight greater than 20kg/m, it should not exceed 10% of the total delivery quantity.
The bend radius of the square tube must not exceed 2mm per meter, and the total bend must not exceed 0.2% of the total length.
Square and rectangular cold-formed hollow sections, also known as square tubes and rectangular tubes, are abbreviated as F and J respectively.
Square and rectangular tube execution standard
GB/T 6728-2002, GB/T 6725-2002, GBT 3094-2000, JG 178-2005, ASTM A500, JIS G3466, EN 10210, or technical agreement.
GB/T3094-2000 (National Standard) Cold-Pressed Non-Standard Rectangular Tubing
GB/T6728-2002 (National Standard) Structural Cold-Formed Hollow Section Steel
ASTM A500 (U.S. Standard) Cold-Formed Welded Rectangular Tubing and Seamless Rectangular Tubing for Structural Carbon Steel
EN10219-1-2006 (European Standard) Non-alloy and Fine-grained Cold-Formed Welded Hollow Section Profiles
JIS G 3466 (Japanese Standard) general-purpose angular rectangular tube.
Square tubes are categorized by production process: hot-rolled seamless square tubes, cold drawn seamless square tubes, extruded seamless square tubes, and welded square tubes.
Among them, the welded square tubes are further divided into
1. By process - Arc Welded Square Pipe, Resistance Welded Square Pipe (Low Frequency), Gas Welded Square Pipe, Furnace Welded Square Pipe
2. By weld type - straight seam square tube, spiral seam square tube.
Chongqing Renbang Co., Ltd. produces and sells various specifications of stainless steel sheets. Standard full range. Large distribution warehouses are available for commonly used specifications, ensuring prompt availability of stock. Special specifications are available for customization.
