20 Years of Experience in Seamless Steel Tube Production

Compression-ignition Engine High Pressure Fuel Pipe Series

Synopsis of Process Routing

Using German standard high-quality steel as raw materials, ST35, ST3.7.4, ST52.4, fine drawing, no oxidation and bright heat treatment (NBK state), and non-destructive testing.

Main Application

Automotive. The working technical indexes of the high pressure tubing series for compression ignition engine produced by the company can fully meet the standards of the international brand steel pipe, and can completely replace the imported tubing products, which can greatly save and reduce the cost for the majority of users.
Main Features
High precision
Good roughness on
the surface and high
cleanness of inside wall
No oxidization on the
outer and inner walls after
heat treatment
Outer diameter, inner hole dimension tolerance ±0.05mm, advanced inner cavity surface quality Q grade. The normal working pressure is 2000kg, and the test pressure is 6000kg undeformed. The cold bending of a rod with the same diameter as its outer diameter is 180 °, and its surface is smooth and crack-free.
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:
Light gray belt white

Customer Question

  • Q: What is precision tolerance tolerance of tube?


    Specification Specification Specification Specification Specification
    Out diameter In diameter Out diameter In diameter Out diameter In diameter Out diameter In diameter Out diameter In diameter
    D 6mm Φ1.0 D 6.35mm Φ1.0 D 7mm Φ1.0 D 8mm Φ2.0 D 15mm Φ3.0
    Φ1.2 Φ1.2 Φ1.2 Φ3.0 Φ4.0
    Φ1.4 Φ1.4 Φ1.4 D 9mm Φ2.0 Φ5.0
    Φ1.5 Φ1.5 Φ1.5 Φ3.0 D 16mm Φ4.0
    Φ1.6 Φ1.6 Φ1.6 D 10mm Φ2.0 Φ5.0
    Φ1.8 Φ1.8 Φ1.8 Φ3.0 Φ6.0
    Φ2.0 Φ2.0 Φ2.0 D 12mm Φ2.0

    Φ2.2 Φ2.2 Φ2.2 Φ3.0
    Φ2.4 Φ2.4 Φ2.4 Φ4.0
    Φ2.6 Φ2.6 Φ2.6 D 14mm Φ3.0
    Φ3.0 Φ3.0 Φ3.0 Φ4.0

  • Q: What is the pressure resistance of the tube?

    A: The pressure table of tube   Download
  • Q: What is the delivery time of tube?

    A: Our products will be delivered within 30 days.
  • Q: How long can the tube be stored?

         NBK 1 years without rust

         NBK+Phosphated 2 years without rust

         NBK+Galvanized 3 years without rust

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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