• Line Pipe System 1
  • Line Pipe System 2
  • Line Pipe System 3
Line Pipe

Line Pipe

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Loading Port:
China Main Port
Payment Terms:
TT or LC
Min Order Qty:
20MT m.t.
Supply Capability:
5000 Tons Per Month m.t./month

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Specifications of Line pipe

Standard : API SPEC 5L 

 

Standard

 

Product Specification Level

Steel grade

Chemical composition, %

C

Mn

P

S

Si

V

Nb

Ti

CEpcm

API 5L

PSL 1

L210 or A

0.22

0.90

0.030

0.030

-

-

-

-

0.25

L245 or B

0.28

1.20

0.030

0.030

-

-

-

-

0.25

L290 or x42

0.28

1.30

0.030

0.030

-

-

-

-

0.25

L320 or X46

0.28

1.40

0.030

0.030

-

-

-

-

0.25

L360 or X52

0.28

1.40

0.030

0.030

-

-

-

-

0.25

L390 or X56

0.28

1.40

0.030

0.030

-

-

-

-

0.25

L415 or X60

0.28

1.40

0.030

0.030

-

-

-

-

0.25

PSL 2

L245Ror BR

0.24

1.20

0.025

0.015

0.40

c

c

0.04

0.25

L290R or X42R

0.24

1.20

0.025

0.015

0.40

0.06

0.05

0.04

0.25

L245N or BN

0.24

1.20

0.025

0.015

0.40

c

c

0.04

0.25

L290N or X42N

0.24

1.20

0.025

0.015

0.40

0.06

0.05

0.04

0.25

L320N or X46N

0.24

1.40

0.025

0.015

0.40

0.07

0.05

0.04

0.25

L360N or X52N

0.24

1.40

0.025

0.015

0.45

0.10

0.05

0.04

0.25

L390N or X56N

0.24

1.40

0.025

0.015

0.45

0.10

0.05

0.04

0.25

L415N or X60N

0.24

1.40

0.025

0.015

0.45

0.10

0.05

0.04

协商

Negotiation

Note:The sum of the columbium [niobium], and vanadium contents shall not exceed 0.06% except that, by agreement between the purchaser and the manufacturer, an alternative maximum may be established.

 

 

Standard

Product Specification Level

Steel grade

Yield Strength (min), Mpa

Tensile Strength(min), Mpa

API 5L

PSL 1

L210 or A

210

335

L245 or B

245

415

L290 or x42

290

415

L320 or X46

320

435

L360 or X52

360

460

L390 or X56

390

490

L415 or X60

415

520

PSL 2

L245Ror BR

245~450

415~760

L290R or X42R

290~495

415~760

L245N or BN

245~450

415~760

L290N or X42N

290~495

415~760

L320N or X46N

320~525

435~760

L360N or X52N

360~530

460~760

L390N or X56N

390~545

490~760

L415N or X60N

415~565

520~760

 

 

Nominal Diameter Range

Outside diameters Rang(mm)

Coating Type

Coating Layer

Coating thickness

DN100~600

114.3~609.6

 

Three layers polyethylene

 

2.0~4.5mm

Inside layer: epoxy(Green)     

 

 Mid Layer:adhesive(White)

 

Outside layer:polyethylene (Black)

 

Two layers polyethylene

 

2.0~4.5mm

Inside layer: adhesive  

 

Outside layer:polythene

DN80~600

88.9~609.6

FBE

epoxy

 

200~400um

Epoxy

2FBE

Two layers epoxy

 

400~800um

Inside layer: epoxy(Green)    

  

Outside layer:intensity epoxy(sage green)

DN100~600

114.3~609.6

3PP

Three layers polypropylene

 

2.5~3mm

Inside layer: epoxy(Green)       

 

 Mid Layer:adhesive(White)

 

Outside layer:polypropylene(White)

Applications

It is used for conveying gas,water,and petroleum of both the oil and natural gas industries.

Packaging & Delivery

Each bundles pipes will be bundled with 6-8 pcs steel strips and with shipping marks and 2 nylon strips 

40-50 days delivery on china port upon receiving orinigal LC or prepayment.

 

Q:What are the common protective coatings used on the inner surface of steel pipes?
The common protective coatings used on the inner surface of steel pipes include epoxy, polyurethane, and cement mortar coatings. These coatings provide corrosion resistance, prevent the formation of scales, and improve the durability and lifespan of the pipes.
Q:What is the average lead time for manufacturing steel pipes?
The average lead time for manufacturing steel pipes can vary depending on several factors such as the complexity of the design, size of the order, and the specific production capabilities of the manufacturer. Typically, it can range from a few weeks to a few months.
Q:What's the difference between stainless steel seamless tube and stainless steel welded pipe?
Stainless steel welded pipe is also a hollow section of steel, but it is welded through the plate into the steel pipe, so there is a welded steel pipe welding gap.
Q:What are the different types of valves used with steel pipes?
There are several types of valves used with steel pipes, including ball valves, gate valves, globe valves, check valves, and butterfly valves.
Q:What are the different types of steel pipe supports for thermal expansion?
There are several different types of steel pipe supports that can be used for thermal expansion, including rigid supports, sliding supports, and spring supports. Rigid supports provide fixed support to the pipe and do not allow for any movement. Sliding supports allow the pipe to move horizontally as it expands or contracts, while still providing vertical support. Spring supports use springs to support the weight of the pipe and allow for vertical movement as well as thermal expansion.
Q:What are the different types of flanges used with steel pipes?
There are several types of flanges commonly used with steel pipes, including slip-on flanges, weld neck flanges, socket weld flanges, threaded flanges, blind flanges, and lap joint flanges. Each type has its own specific design and purpose, catering to different requirements such as ease of installation, high-pressure applications, or connecting different pipe sizes.
Q:What is the lifespan of steel pipes?
The lifespan of steel pipes can vary depending on various factors such as the quality of the steel, usage conditions, maintenance, and external factors like corrosion. However, properly installed and maintained steel pipes can typically last for several decades or even a century.
Q:What are the standard dimensions for steel pipes?
The standard dimensions for steel pipes vary depending on the application and industry. However, common sizes range from ½ inch to 48 inches in diameter and have various wall thicknesses based on the required strength and pressure rating.
Q:How are steel pipes protected against rusting?
Steel pipes are protected against rusting through a process called corrosion protection. There are several methods employed to prevent rust formation on steel pipes, including: 1. Coatings: One common method is applying various coatings to the surface of the steel pipes. These coatings act as a barrier, preventing oxygen and moisture from reaching the metal surface and initiating the rusting process. Coating options include epoxy, polyethylene, zinc, or even a combination of these materials. 2. Galvanization: Galvanizing steel pipes involves immersing them in a bath of molten zinc. This process creates a protective layer of zinc on the surface of the pipes which acts as a sacrificial barrier. If any small areas of the pipe surface are exposed, the zinc coating will corrode instead of the steel, providing ongoing protection against rust. 3. Cathodic Protection: This method utilizes an electrical current to protect the steel pipes. By connecting the pipes to a sacrificial anode, usually made of zinc or magnesium, the anode will corrode instead of the steel pipes when exposed to moisture and oxygen. This process is commonly used in underground or underwater applications. 4. VCI (Vapor Corrosion Inhibitor) Technology: VCI technology involves the use of chemical compounds that release a vapor that protects the steel pipes from rusting. These compounds form a thin layer on the surface of the pipes, inhibiting the corrosion process by neutralizing oxygen and moisture. 5. Regular Maintenance: In addition to the above methods, regular inspection and maintenance are crucial to prevent rust formation on steel pipes. This includes cleaning the pipes, removing any accumulated debris or corrosive substances, and repairing any damaged coatings or protective layers. Overall, these methods of corrosion protection effectively safeguard steel pipes from rusting, ensuring their longevity and durability in various industrial, commercial, and residential applications.
Q:What are the advantages of using steel pipes in the manufacturing industry?
Steel pipes offer several advantages in the manufacturing industry. Firstly, steel pipes are highly durable and have a long lifespan, making them ideal for handling heavy loads and withstanding harsh conditions. Secondly, steel pipes are resistant to corrosion, rust, and chemical reactions, ensuring that the material being transported or processed remains uncontaminated. Additionally, steel pipes have high tensile strength and can withstand high pressure, making them suitable for various applications like transporting liquids, gases, and solids. Furthermore, steel pipes are versatile and can be easily customized to meet specific manufacturing requirements. Lastly, steel pipes are cost-effective due to their longevity, low maintenance needs, and recyclability, making them an economical choice for the manufacturing industry.
The company's main products are: the low-pressure boiler seamless steel pipe, oil casing seamless pipe, ship seamless steel tubes, seamless steel pipe, petroleum cracking, chemical fertilizer equipment, seamless steel tubes, structural seamless steel pipe, seamless steel hollow pumping rod with eight series. According to GB, ASTM, APL5L, AP15CT, DIH, JIS and other standard production seamless steel tubes.

1. Manufacturer Overview

Location Hebei, China
Year Established 1990
Annual Output Value Above 30 milionrmb
Main Markets Germany; Japan;Korea; America; Brasil; Canada
Company Certifications ISO9001:2000 ; API

2. Manufacturer Certificates

a) Certification Name  
Range  
Reference  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port Tianjin; Qingdao
Export Percentage 50%
No.of Employees in Trade Department Above 10
Language Spoken: English; Chinese
b)Factory Information  
Factory Size: 8,5000square meters
No. of Production Lines Above 10
Contract Manufacturing OEM Service Offered; Design Service Offered
Product Price Range High Average

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