EN10305-1/4 Precision Steel Tube

  • Cold Rolled Shock Absorber Steel Tube

    Shock absorber precision steel tubes are suspension components that are responsible for absorbing the impact of avehicle’s movements. Through the shocks, the vehicle’s bounce cycle is cut short. If the car encounters abump on the road, it will still bounce; however, the shocks will shorten its bounce so that the driver and passengers will hardly feel it.

  • Black Phosphate Precision Tube

    Main Features: high accuracy, excellent brightness, no oxidization on the outer and inner walls after heat treatment, high cleanness inside wall. The steel tube is able to stand high pressure. No deformation after cold bending, no crack after flaring and flattening . The complicated geometrical forming and machining can be realized. bright black. Color is homogeneously distributed on the tube surface. The tube has good property of antirust.
    Main Application: to be used in hydraulic system, automobile and in the occasion where the high precision, brightness, cleanness and mechanical properties of the tube are required.

  • Olive Green Galvanized Steel Tube

    1. We use high quality raw materials for the olive green galvanized steel tube. All raw materials are supplied from internationally known steel makers.

    2. Each batch of raw material is checked for both chemical and mechanical properties, according to specifications.

    3. During the cold drawing process, our inspectors check every bundle three times: once at the beginning of the process, once during the middle, and finally, at the end of the cold drawing process.
    4. During the final heat treatment, every bundle has the surface checked, as well as mechanical properties through samplings.
    5. Non-destructive testing and manual inspection for each tube ensure the 100% quality rate before galvanization

  • Yellow Galvanized Steel Tube

    1. We use high quality raw materials. All raw materials are supplied from internationally known steel makers.

    2. Each batch of raw material is checked for both chemical and mechanical properties, according to specifications.

    3. During the cold drawing process, our inspectors check every bundle three times: once at the beginning of the process, once during the middle, and finally, at the end of the cold drawing process.
    4. During the final heat treatment, every bundle has the surface checked, as well as mechanical properties through samplings.
    5. Non-destructive testing and manual inspection for each tube ensure the 100% quality rate before galvanization

  • Black Phosphate Precision Tube

    Synopsis of Process Routing: quality carbon steel → cold drawing → bright heat treatment without oxidization (NBK status) → nondestructive testing. In the wall honing and inside flushing under the high pressure→ plastic capping on both ends→Phosphating→Antirust oiling outside surface→Bundles

    Main Features: high accuracy, excellent brightness, no oxidization on the outer and inner walls after heat treatment, high cleanness inside wall. The steel tube is able to stand high pressure. No deformation after cold bending, no crack after flaring and flattening . The complicated geometrical forming and machining can be realized. bright black. Color is homogeneously distributed on the tube surface. The tube has good property of antirust


    Main Application: to be used in hydraulic system, automobile and in the occasion where the high precision, brightness, cleanness and mechanical properties of the tube are required.

    Main grades:ST35,ST45,ST52,E215,E235,E355,etc

    Delivery Status:NBK(+N) +Black Phosphating

     Specifications: OD:6~100mm x WT:1~10m

  • Diesel Engine Fuel Injection Tube

    We supply the worldwide leading diesel engine manufacturers with high-pressure fuel injection pipes, common-rail piping systems. Such engines power off-road vehicles, ships, locomotives and electrical power generators.

    All of our common rail fuel injection steel tubes are ground exactly to your specifications. Our reputation as a provider of common rail fuel injection steel tubes was built on our ability to meet and exceed the expectations of both client and industry standards.

  • Seamless High Precision Tube

    Synopsis of Process Routing: quality carbon steel → cold drawing → bright heat treatment without oxidization (NBK status) → nondestructive testing. In the wall honing and inside flushing under the high pressure→. Antirust oiling outside surface→ plastic capping on both ends.
    Main Features: high accuracy, excellent brightness, no oxidization on the outer and inner walls after heat treatment, high cleanness inside wall. The steel tube is able to stand 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: gray with white.
    Main Application: to be used in hydraulic system, automobile and in the occasion where the high precision, brightness, cleanness and mechanical properties of the tube are required.

    Main grades:

    ST35,ST45,ST52,E215,E235,E355,etc

    Delivery Status:

    NBK(+N),Bright Annealed

    Specifications:

    Outer diameter x wall thickness
    3~89 x 0.5~10mm
  • Cold Rolled Precision Steel Tube

    Synopsis of Process Routing: quality carbon steel → cold rolling→ bright heat treatment without oxidization (NBK status) → nondestructive testing. In the wall honing and inside flushing under the high pressure→. Antirust oiling outside surface→ plastic capping on both ends.
    Main Features: high accuracy, excellent brightness, no oxidization on the outer and inner walls after heat treatment, high cleanness inside wall. The steel tube is able to stand 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: gray with white.
    Main Application: to be used in hydraulic system, automobile and in the occasion where the high precision, brightness, cleanness and mechanical properties of the tube are required.

    Main grades:

    ST35,ST45,ST52,E215,E235,E355,etc

    Delivery Status:

    BK(+C),NBK(+N),Bright Annealed;etc

    Specifications:

    Outer diameter x wall thickness
    15~160mm x 0.6~5mm
  • Seamless Hydraulic Steel Tubes

    Synopsis of Process Routing: quality carbon steel → cold drawing → bright heat treatment without oxidization (NBK status) → nondestructive testing. In the wall honing and inside flushing under the high pressure→. Antirust oiling outside surface→ plastic capping on both ends.
    Main Features: high accuracy, excellent brightness, no oxidization on the outer and inner walls after heat treatment, high cleanness inside wall. The steel tube is able to stand 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: gray with white.
    Main Application: to be used in hydraulic system, automobile and in the occasion where the high precision, brightness, cleanness and mechanical properties of the tube are required.

    Main grades:

    ST35,ST45,ST52,E215,E235,E355,etc

    Delivery Status:

    NBK(+N),Bright Annealed

    Specifications:

    Outer diameter x wall thickness
    3~89 x 0.5~10mm
  • Hydraulic Honed Steel Tubes

    Honed H8 ,these tubes are suitable for hydraulic cylinder manufacturer.

    Straightness:0.3~0.8mm/m

    Inside finish Roughness:0.3~0.8um

    Dimensional Accuracy:

    1.Tolerance on Inner Diameter:H9/H8

    2.Tolerance on Wall Thickness:

    Diameter:>40 +/-0.2mm

    Diameter:40<100 +/-0.3mm

    Diameter>100 +/-0.5mm

    3.Surface Roughness:Ra=0.3~0.4micron

    Length:Random length:2-6m or as per order confirmation

    4.Delivery condition:BKS

    5.Certificates:En10204/3.1B Mill certificates,with chemical analysis and mechanical tests can be issued and delivere

  • Bright Annealed Steel Tube

    Synopsis of Process Routing: quality carbon steel → cold drawing → bright heat treatment without oxidization (NBK status) → nondestructive testing. In the wall honing and inside flushing under the high pressure→. Antirust oiling outside surface→ plastic capping on both ends.
    Main Features: high accuracy, excellent brightness, no oxidization on the outer and inner walls after heat treatment, high cleanness inside wall. The steel tube is able to stand 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: gray with white.
    Main Application: to be used in hydraulic system, automobile and in the occasion where the high precision, brightness, cleanness and mechanical properties of the tube are required.

    Main grades:

    ST35,ST45,ST52,E215,E235,E355,etc

    Delivery Status:

    NBK(+N),Bright Annealed

    Specifications:

    Outer diameter x wall thickness
    3~89 x 0.5~10mm
  • White galvanized steel tubes

    When producing galvanized steel tubes, we utilize advanced technical processing and use a chemical liquid imported from Germany. Both the inner and outer surfaces of the high precision steel tubes can be galvanized, giving them a high homogeneity and an excellent rust resistant performance.
    Zinc wall thickness 8-12um, and customized as per customer requirements. Salt spray test: common requirements- 80-120 hours, high requirements- 120-300 hours Cr+6 free, environmental type

    Process Description

    Using a high precision, fine drawn bright seamless steel tube as the steel pipe for galvanizing, the outer wall of the steel pipe is cold-galvanized, and both ends are covered for dust protection.