Product Name

China manufacturer carbon steel square hollow

Material

Q235,Q345

Material Chemical Composition

Tensile strength: 375-460(Mpa)

Yield strength:≥235(Mpa)

Elongation:≥26(a≤16mm)
                    ≥25(a>16-40mm)
                    ≥24(a>40-60mm)
                    ≥23(a>60-100mm)
                    ≥22(a>100-150mm)
                    ≥21(a>150mm) 

Shape

Rectangular

Outer Dia(mm)

10*20-700*300

Wall Thickness(mm)

0.6-25

Length(m)

5.8-12

Surface Treatment

1)Black,Pre-galvanized

2)oiled,powder coating

3)Galvanized as your requirement

PS:Pre galvanized steel pipe: 60-150g/m2;Hot dipped galvanized steel pipe: 200-400g/m2

End Finish

Plain/ beveled ends or threaded with sockets/coupling and plastic caps.

Packaging

Packing in bundle with steel strips; with seaworthy package at the end; could be done with your requirement.

Inspection

With Chemical Composition and Mechanical Properties Testing; Hydrostatic Test, Dimensional and Visual Inspection,  With Nondestructive Inspection

Application

construction pipe, machine structure pipe, agriculture equipment pipe, water and gas pipe, Greenhouse pipe, Building material, Furniture tube, Low pressure fluid tube, etc

HS Code

7306309000

Others

1:Special design available according to requirement 
2:Pipe can be necked dowm, punching hole on pipe wall. 
3:Pipe fittings, elbows are available.
4.All production process are under the ISO9001:2000 strictly