Stainless Steel square tube classification: square tube is divided into Seamless Steel Pipe and Welded Steel Pipe (seam pipe). According to the shape of the section, it can be divided into square and rectangular tubes. Round steel tubes are widely used, but there are also some semi-circular, hexagonal, equilateral triangle, octagonal and other special-shaped steel tubes. For stainless steel square pipes that are subjected to fluid pressure, hydraulic tests are required to check their pressure resistance and quality. No leakage, wetting or expansion under the specified pressure is qualified. Some steel pipes are also rolled according to standards or demander requirements Side test, flaring test, flattening test, etc.
Material | 304:0cr18ni9, 0cr17ni8 201:1cr17mn6ni5n,1cr13mn9ni1n 316:0cr17ni12 or as customer`s request |
Size(round pipe) | 9.5, 12.7, 15.9, 17, 18, 19.1, 20, 21, 22.2, 23, 25.4, 28, 318, 35, 60, 63.5, 73, 76.2, 88.9, 101.6,114.3, 127, 133, 159, 168, 219 mm or customized |
Size (square pipe) | 10×10,12×12,18×18,23×23,38×38,50×50,70×70,100×100,20×10,23×10, 24×12, 25×13,36×23,40×20,50×20,60×15,75×45,80×60,95×45,100×60, 150×100 mm or customized |
Size (oval pipe) | 30×15,80×40 mm os customized |
Process method | Code drawn, annealed with nitrogen protection, ultrasonic,automatic shape, polished |
Finishing | A: sanded B: 400#-600# mirror C: hairline brushed D: TIN titanlum E : HL brushed & mirror (two kinds of finishing for one pipe) |
Test and Inspection | - Mechanical Test - Tension Test - Flattening Test - Hardness Test - Bend Test - Hydrostatic Test - Nondestructive Electric Test |
304 Stainless Steel Round Rod, 316 Stainless Steel Rod, 316 Stainless Steel Round Rod, Astm Stainless Steel Bar, Copper , Mirror Stainless Steel Round Bar