Standards

ASTM A53, BS1387, DIN2440

SGS,ASTM-A53A, BS1387-1985

GB/T3091-2001,GB/T8162,GB/T8163:20#,45#

16MN(Q345B)GR. A , GR. B, GR. C,

ASTM A106  GR. A , GR. B, GR. C;

API 5L  A B X42,X46, X52, X60, X65, X70, X80  

Certificates

API 5L , API 5CT, ISO ,CE

Material

Q195→Grade B, SS330,SPHC, S185

Q215→Grade C,CS Type B,SS330,SPHC

Q235→Grade D,SS400,S235JR,S235JO,S235J2

Specification

Hot-dip galvanized  tube/pipe1/8"-8"(10mm-219.1mm)

Wall Thickness:3mm-8mm

Wt tolerance:+/-10%

Length:1-12m or as per request

Special specifications can be supplied as per request

Zinc coated

Pre - galvanized pipes:60-80g/m2 

Hot-dip galvanized pipes:275-300g/m2  

Type

Galvanized steel pipe

Technique

Electronic Resistance Welded (ERW )
Electronic Fusion Welded (EFW)
Double Submerged Arc Welded (DSAW)

HS Code

7306309000

galvanized steel pipe and tube         galvanized steel pipe

Surface treatment

1) Bared
2) Black Painted (varnish coating)
3) Galvanized
4) With Oiled
5) 3 PE, FBE, corrosion resistant coating
6)As per request

Section shape

Round/Square/Rectangular

Object classification

Decorative square tube, square tube machine tools, industrial machinery square pipe, chemical pipe, steel square tube, square tube shipbuilding, automotive square tube, square tube steel beams, special purpose square tube

End finish

Plain/ beveled ends or threaded with sockets/coupling 

and plastic caps.galvanized steel pipes

End protector

1) Plastic pipe cap
2) Iron protector

3)as per request

Properties of product

Hot galvanized square tube has good strength, toughness, ductility and welding process performance and have good ductility, its alloy layer and the steel base firmly attached, so hot galvanized square tube can be cold-rolled, brushed , bending and other forming without damaging the coating; suitable for general machining such as drilling, cutting, welding, cold and other technology. After hot-dip galvanized surface bright and beautiful, can be used directly according to the needs of the project.

Inspection

With hydraulic testing, eddy current and infrared test

Packaging 

1.Big OD: in bulk
2.Small OD :packed by steel strips
3.Woven cloth with 7 slats
4.According to the requirements of customers

Main application

1.For low pressure liquid delivery such as water,gas and oil

2.For structure,construction and fencing post