Home > Metallurgy, Mineral & Energy > Steel & Products > Steel Pipe & Tube > Rectangle Construction Hollow Sections Steel Welding Tubes

Rectangle Construction Hollow Sections Steel Welding Tubes

Rectangle Construction Hollow Sections Steel Welding Tubes photo-1
Rectangle Construction Hollow Sections Steel Welding Tubes photo-2
Rectangle Construction Hollow Sections Steel Welding Tubes photo-3
Rectangle Construction Hollow Sections Steel Welding Tubes photo-4
US$ 600 - 900 MOQ: 10 Tons
Key Specifications
Get Latest Price
Thickness:
0.5, 20
Section Shape:
Rectangular
Outer Diameter:
10*20-300*500mm
Payment & Shipping
Payment Methods:
Port of Shipment:
Tianjin China
Delivery Detail:
Delivery time depends on order quantity.
Thickness 0.5, 20
Section Shape Rectangular
Outer Diameter 10*20-300*500mm
Place of Origin Hebei, China
Secondary Or Not Non-secondary
Application Gas Pipe
Technique Hot Rolled
Certification API
Surface Treatment Galvanized
Special Pipe Thick Wall Pipe
Alloy Or Not Non-alloy

Specifications

Pipeline Rectangle Seamless Steel Tubes
1:size:OD:10*20-300*500mm,Dia:0.5-20mm
2:Length:3-12m
3:Galvanized
4:ISO9001/BV

Pipeline Rectangle Seamless Steel Tubes 

 

 

1:Characteristics:


The pipe internal stress is very small and uniformly distributed after the full- length expansion. The corrosion and cracking of the pipe owing to stress can be effectively prevented. The application of welding on site is very easy because of the high dimension precision;
The inside and outside welding are performed after the tack welding , so the welding process is very stable with good weld quality;
The NDT is easy to perform on the weld during production and field operation as well;
The length of the weld is shorter than that of the non-longitudinal seam pipe, so the probability of defects occurrence is very low;
The coverage of the pipe specification is very wide. The pipe can be either in large diameter with thick wall or in small diameter with thick wall.

 

 

2: Application:

 

 

The pipes are mainly used as long distance transportation pipeline for oil, gas, liquid coal etc. on land and 
offshore. And also can be applied as construction pipes on offshore platform, power station, petrochemistry and city 
construction etc.

 

3: Heat treatment:

Annealed: Bright annealed, , Spheroidize annealed
Normalized, Stress relieved, Cold finished, Quenched and Tempered



4:Test:

Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield 
strength, Elongation), Technical Properties (Flattening Test, Flaring Test, Bending Test, Hardness Test, Blow Test, Impact Test etc), Exterior Size Inspection.

 

 

5:Chemical components and mechanical property of seamless steel pipe:

 

Standard

Chemical components

Mechanical property

C

Si

Mn

P

S

Cu

Ni

Mo

Cr

V

Tensile strength (Mpa)

Yield strength (Mpa)

Elongation (%)

ASTM A53

≤0.30

/

≤1.2

≤0.05

≤0.06

≤0.04

≤0.40

≤0.15

≤0.04

≤0.08

≥415

≥240

≥29.5

ASTM A106

≤0.30

≤0.10

0.29-1.06

≤0.035

≤0.035

≤0.04

≤0.40

≤0.15

≤0.04

≤0.08

≥415

≥240

≥30

ASTM A179

0.06-0.18

≤0.25

0.27-0.63

≤0.035

≤0.035

/

/

/

/

/

≥325

≥180

≥35

ASTM 192

0.06-0.18

≤0.25

0.27-0.63

≤0.035

≤0.035

/

/

/

/

/

≥325

≥180

≥35

 

 

 

 

 

Rectangle construction Hollow Sections Steel welding TubesRectangle construction Hollow Sections Steel welding Tubes

 

 

5:Packing:

Plastic plugs in both ends, Hexagonal bundles of max. 2,000kg with several steel strips, Two tags on each bundle, Wrapped in waterproof paper, PVC sleeve, and sackcloth with several steel strips

Rectangle construction Hollow Sections Steel welding TubesRectangle construction Hollow Sections Steel welding Tubes

 

 

 

Send Inquiry to This Supplier

Message
0/5000
Want the best price? Post an RFQ now!
Business Type
Manufacturer, Trading Company
Year Established
2008
Factory Size
3,000-5,000 square meters
Total Employees
51 - 100 People