Tianjin square rectangular pipe ! black tube 4 free shelf thinnest mild square steel tube seller

Size

Dimension

1/2-24"(15mm-610mm)

Wall Thickness

0.8-12mm.

SCH30,SCH40,STD,XS,SCH80,SCH160,

XXS etc.

ZINC COATED

1)Pre-galvanized:Z60-120g/m2

2)Hot dip galvanized:Z260-520g/m2

Steel material

Q195 → Grade B, SS330,SPHC, S185

Q215 → Grade C,CS Type B,SS330, SPHC

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

Q345 → SS500,ST52

Standard

BS1387,EN10297,BS6323,BSEN10217,GB/T13793-1992,

GB/T14291-2006,GB/T3091-1993,GB/T3092-1993,

GB3640-88,ASTM A53/A36,EN39/EN10219,API 5L,

GB/T9711.1-99 etc

Section shape

Round/Square/Rectangular

Type

Welded Pipe

Technique

Electronic Resistance Welded (ERW )

Electronic Fusion Welded (EFW)

Double Submerged Arc Welded (DSAW)

Welded Line Type

Longitudinal

Ends

1)Plain 

2)Beveled

3)Thread with Coupling or cap

End protector

1) Plastic pipe cap

2) Iron protector

Surface Treatment

1) Bared

2) Black Painted (varnish coating)

3) Galvanized

4) With Oiled

5) 3 PE, FBE, corrosion resistant coating

Inspection

With Hydraulic Testing, Eddy Current , Infrared Test

Class A test pressure

4.83MPa-13.10Mpa

Package

1.Big OD:in bulk

2.Small OD:packed by steel strips

3.woven cloth with 7 slats

4.plastic bags

5.as per customer's option

Application

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

2)construction

Delivery

1) Container

2) Bulk carrier

Port of Shipment

Xingang Port,Tianjin, China

Date of Delivery

According To The Quantity And Specification Of Each Order

Payment

L/C T/T 

Addition:

Special design available according to requirment

.Anti-corrosion and high-temperature resistant with black painting

.All the production process are made under the ISO9001:2000 strictly

Steel 

C

Mn

S

P

Si

Q195 

0.06-0.12 

0.25-0.50 

<0.050 

<0.045

<0.30 

Q215 

0.09-0.15

0.25-0.55

<0.050

<0.045

<0.30 

Q235 

0.12-0.20 

0.30-0.70 

<0.045

<0.045

<0.30 

Q345 

<0.20 

1.0-1.6 

<0.040

<0.045

<0.55