1.black steel tube and pipe 2.good mechanical properties 3.percentage elongation and the strength are ideal 4.NBK 5.NDT
black steel tube and pipe
the manufacturing standard adopted for this product is DIN2391 standard series.This type of steel tube enjoys good wear resistance and high concentricity and the interior(exterior)surface of the steel tube looks like a mirror ,which saves the user's work for downstream processing and cutting &grinding processing during the use .therefor it is the ideal tube for hydraulic system and mechannical structure device.
specification: Outside Diameter:4-114mm Wall Thickness:0.5-6mmStandard:Din2391 Din17175 Din-EN-10305-1 Din1629 Din73000 etc. Astm A106(179,192,199,200,210,213,333,335,500,519,556,587) etc.
black steel tube and pipe
