CHINA GALVANIZED PIPE MANUFACTURERS

Short Description:

Product name: hot galvanized steel pipe

Materials: Q235, Q345B, Gr.B, S195T, ST35 etc.

Standard: ASTM A153, A123M, A513, A53, EN ISO1461 etc.

Outer diameter: 1/4″ – 12″ .

Wall thickness: Sch5 – Sch80(1.0mm – 12mm).

Length: 2m – 12m.

Application: construction, fire control, pipeline etc.


Product Detail

Process

Standard

Size

Galvanized Round Pipe, Galvanized Square Tube

 

Materials: Q235, Q345B, Gr.B, S195T, ST35 etc.

Standard: ASTM A153, A123M, A513, A53, EN ISO1461 etc.

Outer diameter: 1/4″ – 12″ .

Wall thickness: Sch5 – Sch80(1.0mm – 12mm).

Length: 2m – 12m.

Application: construction, fire control, pipeline etc.

镀锌管31

Length of galvanized tubes

- in diameter 4-16 mm 6000 + 100 mm

- in diameter 18-42 mm 6000 + 50 mm

Surface condition of the galvanized tubes

First layer–electrolitically leached zinc(Zn)-acts as anode and in a corrosive environment it corrodes first and base metal is cathodically protected against corrosion. The zinc layer thickness may be in the range of 30 to 60 micrometers (μm)

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Tolerances of the zinc coated tubes

- tolerances of the outside diameter

- diameter between 4- 30 mm±0.08 mm

- diameter between 35-38 mm±0.15 mm

- diameter up to 42 mm±0.20 mm

- tolerances of the inside diameter are according to EN 10305-4

-tolerances of the wall thickness ±10%

The Steel grades for the zinc coated tubes

E 235+N and E 355+N


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    ASTM A153-03–This specification covers zinc coatings applied by the hot-dip process on iron and steel hardware

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