Material: It is produced by steel strip and the main elements such as nickel, chromium and copper are of high purity and stability.
Features: good extension performance, strong welding, High precision.flaring, shrinking, bending, taping within the standard range of processing.
Specification as follow：
|Product name||Black Steel Square Pipe|
|Technique||Longitudinal Electronic Resistance Welding(ERW) High Frequency Welding(HFW)|
|Steel Grade||Q195 similar to a283 GR.B, 040a10, ss330, sphcQ235 similar to a283 GR.D, 080a15,CS type BQ345 similar to a737 GR.B, SS400, S235JR|
|Surface||Galvanized, 3PE, painting, coating oil, steel stamp, drilling, etc|
|Ends||Plain ends, cutting, threading, beveled, flange, etc|
|Packing||Packing in bundle with steel strips; with seaworthy package at the end; could be done with your requirement.|
|Inspection||With Chemical Composition and Mechanical Properties Testing; Hydrostatic Test, Dimensional and Visual Inspection, With Nondestructive Inspection|