DIN2391 Hydraulic Steel Tubing ST35 ST37.4 With High Precision For Industry

 DIN2391 Hydraulic Steel Tubing ST35 ST37.4 With High Precision For Industry

Quick Detail:

• Size:OD4mm-60mm,TH0.5mm-7mm
• Standard:/EN10305-4 /DIN2391/C
• Material:ST35,ST37.4,ST37,ST45,ST52,ST52.4,235,E255,E355,SAE1010,SAE1020.
• Delivery State:NBK
• Raw material:Bao Steel,Huai Steel,XingCheng Steel with good quality.
• Length:5.8m,6m.
• Package:Bundles or wooden cases,with caps of ends.

Features: 

• Surface Anti-rust:good property of antirust,both outside and internal tube surface flushing with anti-rust oil.
• Surface quality:very smooth without oxide scale,pock,strach,crack and other defects..
• Surface Cleaness:clean without iron scrap,dust,better for hydraulic system life.
• Mechanical properties:better extending rate and strength property,after bending with no deformation,after flattening and flaring process with no crack.
• Raw material: Precision tubes are made from carbon steel from quality Bao Steel,XingCheng Steel,and HuaiSteel.

Synopsis of Process Routing: Cold drawn and bright NBK seamless steel tube is used as the tube to be phosphated. The phosphated is realized with the imported chemical fluid to form a black film. The antirust oil is absorbed by means of the micro pore on the film to prevent from the rust. The caps are covered at two ends of tube to prevent from the dust.

Chemical Composition for Hydraulic Steel Tubing