high quality api 5ct erw steel pipe

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Product Description:

WELDED ROUND STEEL PIPE

Commodity

Steel Pipe and Tube

Features

OD(mm)

Thickness(mm)

Length(m)

Cross-sectional

Round:

21.3-273.1

1.0-9.5

5.8/6 or you require

Square:

15*15-300*300

1.0-15.0

5.8/6 or you require

Rectangular:

10*15-350*400

1.0-15.0

5.8/6 or you require

National Standard

Welded Steel Pipe For Transportation Of Low Pressure Fluid

GB/T13091-2001

1

Outside Diameter Of Steel Pipe

Outside Diameter D/mmm

Tolerance Of Pipe Outside Diameter

Tolerance Of Pipe And Outside Diameter/mm

D≤48.3

±0.5mm

48.3<D≤508

±1.0%

168.3<D≤508

±0.75%

+2.4

-0.8

D>508

±1.0%

+3.0

-0.8

Tolerance Of Wall Thickness

±12.5%

2

Length

Usual Length

Tolerance

4M-9M

+20

-0

Multiple Length:5-10mm Tolerance For Each Mutiple

+20

-0

3

Bending

≤168.3mm

Straight For Ordinary Use Or Negotiate The Bending

>68.3mm

Smaller Than 0.2%Of Full Length Steel Pipe

Nominal

Pipe size

(inch)

Outside

Diameter

(mm)

Schedule 1

Nominal

Wall

Thickness

(mm)

Weight(kg/m)

Small

Big

1/2”

20

1.0-2.75

0.467

1.168

3/4”

25

0.9-2.75

0.662

1.55

1”

32

1.0-3.25

0.693

2.341

11/4

40

1.0-3.25

1.24

2.945

11/2

47

1.0-3.5

1.367

3.5

2

59

1.5-3.5

3.758

4.716

21/2

75

1.5-3.75

2.718

6.588

3

88

1.8-3.75

3.825

7.79

4

114

1.5-4.0

4.16

10.85

5

140

2.5-4.25

8.476

14.227

6

165

2.5-4.5

10.017

17.717

8

219

3.5-5.0

18.572

26.385


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Q:What kind of argon arc welding wire is used for 16Mn steel pipe?
16Mn steel weldability is very good, general use TIG with J50 welding wire, hand arc welding with J506, J507 and other welding rod
Q:What does seamless steel tube mean? What are the main uses? What are the classifications?
1.: Construction of the underground pipeline, levy more pumping, boiler hot water transportation etc..2., mechanical processing, bearing sets, processing machinery parts.
Q:How can two smooth steel pipes be joined? The size of the two pipe is different (except for welding)
Butt fastener: used for connecting two steel pipe jointsThin-walled stainless steel pipe, the national standard consists of three parts, respectively on the thin stainless steel pipe connection, the sealing ring of raw materials of various specifications of O type thin wall stainless steel pipe diameter and wall thickness of pipe and rubber have clear requirements, in order to ensure the quality of the whole pipeline, pipeline safety and guarantee system durability. The connection mode is clamp type and ring type.
Q:How are steel tubes represented?
If you speak of steel pipe, if it is water. Gas transmission pipe, then it is said: nominal diameter refers to the inner diameter. The units are millimeters or inches. [for example, water pipes with phi 25. It means that the nominal diameter (diameter) is 25mm (or an inch) steel pipe.
Q:Hot galvanized steel pipe for use?
1, galvanized layer uniformity: steel pipe sample in copper sulfate solution immersion 5 times continuously, must not turn red (copper plated)2, surface quality: galvanized steel pipe surface should be complete galvanized layer, must not have plating on the black spots and bubbles exist, allow little rough surface and local zinc tumor exists.3, galvanized layer weight: according to the requirements of the buyer, galvanized steel pipe can be used for zinc layer weight determination, its average value should be not less than 500g/ square meters, and any sample shall not be less than 480g/ square meters.
Q:Why should the weak electricity be pre buried with galvanized steel pipe?
Galvanized steel pipe with hot-dip galvanizing or galvanized coating on it. Galvanizing can increase the corrosion resistance and prolong the service life of the steel pipe. The use of galvanized pipe is very wide, except for water, gas, oil and other general low pressure fluid pipeline, is used in petroleum industry especially offshore oil well pipe and oil pipe, chemical coking equipment oil heater, cooler, oil pipe exchanger for coal distillation, and support piles, Zhanqiao mine tunnel the tubes.
Q:What is the buckling type thin-wall steel pipe? What is a tight set of thin-walled steel tubes? What's the difference between the two?
The wire pipe thread (box, cup lock fastening points) (JDG) and buckling type (KBG) two. Products are made of high-quality steel pipe, through precise stamping molding, supply pipe and terminal box connection. The nut is hexagonal, and the convex point is punched at the six corner so as to form a good multi-point contact after being connected with the junction box.
Q:What is the process of spiral steel tube production?
Shear forming: on the production line will be along the outer edge of the spiral plate winding tube.
Q:How long is the seamless tube?
Seamless steel tube specification: 8-1240 * 1-200mm
Q:What does "steel pipe SC" mean?
DN100 and "SCH80" refer to the outer diameter and the wall thickness of the steel pipe;

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