Project Description

ASTM A53 GR.B Seamless Steel Pipe

ASTM A53 GR.B Seamless Steel Pipe,Black Phosphated Hydraulic Tubes with High Precision,EN10305-1, EN10305-4, DIN2391,E235, E355, ST37.0, ST44.0, ST52.0

  • High Technical Production Line
  • Cmpetitive price
  • Any sizes seamless steel pipe
  • Certification: SGS、BV、API、CE、ISO
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Product Details

1.Quick Detail:   ASTM A53 GR.B Seamless Steel Pipe

Black Phosphated Hydraulic Tubes with High Precision

EN10305-1, EN10305-4, DIN2391,

E235, E355, ST37.0, ST44.0, ST52.0

Steel Pipes with high precision for Hydraulic Systems Black Phosphating


2.Production process:

DIN series tubes, cold drawn and bright annealed precision seamless steel tube is used as the tube to be phosphated. The phosphorization is realized with the imported chemical fluid to form a black film. The antirust oil is absorbed by means of the micropore on the film to prevent the tubes from getting rust.


3.Main Features:

Bright black color is homogeneously distributed on the tube surface. The tube has good property of antirust.


4.Main Application:

Phosphated hydraulic tube is mainly used in hydraulic system.


5.Our products are widely used in:

Engineering machinery Machine tool industry Hydraulic industry Special vehicle

Automobile pipeline Heavy machinery Compressor Shipbuilding industry

Railway locomotive Diesel engine Utility boiler Injection molding machine

Power equipment Heavy duty automobile Forging and stamping machine


6.Main Characteristics:

No Oxidation Layer on the Outer and Inner Walls

No Crack under Flaring and Flattening

No Leakage under High Pressure

No Distortion after Cold Bending

High Precision High Cleanness Excellent Brightness


Material 10#,20#,45#,A53A,A53B,A106Gr.A,A106Gr.B,A106A,A106B,St52,St358,16Mn,

Q235, Q195, Q345, Q215, API 5L Gr.B,Gr.65,Gr.60,Gr.70,


Specification Outer Diameter: 15mm-1626mm

Wall Thickness: 2mm-30mm

Length: 6m-12m Or As Requested

Surface Black Painted, PE/PVC/Pp Coated, Galvanized, Color Coated, Anti Rust Varnished,

Anti Rust Oiled, Checkered, Epoxy Coating, Etc.

End Plain End, Spigot & Socket Joint, Beveled, Cut Square, FLANGED, Piling Shoes
End Protector 1) Plastic Pipe Cap

2) Iron Protector

Package Standard Export Package, Suit For All Kinds Of Transport Or As Required.
Price Term EXW, Fob, CFR, CIF, Etc.
Payment Term T/T, L/C At Sight, Etc.
Application 1) General Service For Industries ( Petroleum, Chemical, Aviation, Etc.)

2) Fluid, Gas And Oil Transport,

3) Press And Heat Transmission,

4) City Construction, Etc.



Q: Can provide OEM/ODM service?

A: Yes. Please feel free to contact us for more details discuss.

Q: How is your Payment Term?

A:One is 30% deposit by TT before production and 70% balance against copy of B/L; the other is Irrevocable L/C 100% at sight.

Q:  Can we visit your factory?

A: Warmly welcome. Once we have your schedule, we will arrange the professional sales team to follow up your case.

Q: Can you provide sample?

A: Yes, for regular sizes sample is free but buyer need to pay freight cost.

Q.Surface coating?

A:Antirusted painting, varnish painting, galvanized, 3LPE, 3PP,Zinc oxide yellow primer,Zinc phosphate primer and as per customers’ request.

Production Process

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