20 Years of Experience in Seamless Steel Tube Production

Black Phosphated Hydraulic Tube In High Precision

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.

Main Application

Used in hydraulic system, shipment industry, nested card connector (pipe joints) with matching.
Main Features
High precision
  • Great property of anti-rust
Color is homogeneously
distributed on the tube surface
High cleanness 
of inside wall
The steel tube is able to withstand high pressure. No deformation after cold bending, no crack after flaring and flattening. The complicated geometrical forming and machining can be realized. 
Color of tube:
bright black

Customer Question

Additional Services
Pipe cutting service
End planing
Spray mark
Surface treatment
Sourcing hard-to-find products

Product Inquiry
Building B, GaoQiao Industry Park, Chengdong Road,HouCheng JinGang Town,ZhangJiaGang City,JiangSu Province,China.

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