• Blacked Varnished Hot Rolled High Carbon Seamless Steel Pipe System 1
  • Blacked Varnished Hot Rolled High Carbon Seamless Steel Pipe System 2
Blacked Varnished Hot Rolled High Carbon Seamless Steel Pipe

Blacked Varnished Hot Rolled High Carbon Seamless Steel Pipe

Ref Price:
get latest price
Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
30 m.t.
Supply Capability:
3000 m.t./month

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Item specifice

Standard:
AISI,JIS,GB,BS,DIN,API,EN,ASTM
Technique:
Hot Rolled
Shape:
Round
Surface Treatment:
Coated,Black
Steel Grade:
Q195,Q215,Q235,Q215B,Q235B,RHB335,HRB400,200 Series,300 Series,400 Series,600 Series,SS400-SS490,10#,20#,A53(A,B)
Thickness:
5mm-900mm
Length:
5m-12m
Net Weight:
0.017MT

Blacked Varnished Hot Rolled High Carbon Seamless Steel Pipe

 1.Structure of Seamless Steel Pipe : 

Seamless pipe is formed by drawing a solid billet over a piercing rod to create the hollow shell. As the manufacturing process does not include any welding, seamless pipes are perceived to be stronger and more reliable. Historically seamless pipe was regarded as withstanding pressure better than other types, and was often more easily available than welded pipe.

 

2.‍‍Main Features of the Seamless Steel Pipe :

• Strong heat dissipation ability

• Good visual effect

• Reasonable price 

• High manufacturing accuracy

• High strength

• Small inertia resistance

 

 

3.Seamless Steel Pipe Specification

 

1) Material:20#(ASTM A 106/A53 GRB.API5LGRB,GB),45#,16Mn,10#.

2) Specification range:OD:21.3-610mm,WT:6-70mm,length:6-12m or according to the requirement of clients.

3) Excutive standards:GB,ASME API5L.ASTM A 106/A53,Despite of the above standards,we can also supply seamless steel pipe with standard of DIN,JIS,and so on,and also develop new products according to the requirements of our clients!

 

Standard

GB, DIN, ASTM

ASTM A106-2006, ASTM A53-2007

Grade

10#-45#, 16Mn

10#, 20#, 45#, 16Mn

Thickness

8 - 33 mm

Section Shape

Round

Outer Diameter

133 - 219 mm

Place of Origin

Shandong, China (Mainland)

Secondary Or Not

Non-secondary

Application

Hydraulic Pipe

Technique

Cold Drawn

Certification

API

Surface Treatment

factory state or painted black

Special Pipe

API Pipe

Alloy Or Not

Non-alloy

Length

5-12M

Outer Diameter

21.3-610mm

Grade 

20#, 45#, Q345, API J55, API K55, API L80, API N80, API P110, A53B

Standard

ASME, ASTM

 

 

4. Application of Seamless Steel Pipe :

Seamless stainless pipe is used for applications that require internal pressure within the pipe such as process equipment, water treatment and marine applications. Welded pipe is used for structural applications that are exposed to corrosive environments such as marine and external applications.  These include handrails, poles and support piping.

 

5.Packaging & Delivery

Packaging Details:

seaworthy package,bundles wrapped with strong steel strip

Delivery Detail:

50-60days after received 30%TT or Original LC

 

 

6.Seamless Steel Pipe Images

 

Blacked Varnished Hot Rolled High Carbon Seamless Steel Pipe

Blacked Varnished Hot Rolled High Carbon Seamless Steel Pipe

 

 

 

7.  Company Information:

Since 2004, the trading volume of CNBM International has been doubled in 5 successive years owing to the support of superior corporations and effort of all staff. Meanwhile, we have established strategic partnerships with hundreds of domestic manufacturers and sound business relations with clients from over 120 countries. Currently, we have wholly-owned overseas subsidiaries and branches in 5 countries with a view to realize localization, which also represents an essential progress in our globalization target.In line with the business, CNBM International launched E-business platform Okorder.com.Our goal is to transform CNBM International into the global leading brand in building materials industry within 3 to 5 years through innovation and reform, by strengthening the overall management of supply chain, developing and cultivating both domestic and overseas market, improving the procedure and information system, enhancing the ability to organize resources and to provide value-added services under a professional team and a learning organization.

 

 

 

Q:What is the weight and strength of steel pipes?
Steel pipes can vary in weight and strength depending on their dimensions and the specific grade of steel used. The weight of steel pipes is typically measured in pounds per foot or kilograms per meter. The strength of steel pipes is commonly measured in terms of its yield strength and ultimate tensile strength. The weight of steel pipes can range from a few pounds per foot for smaller sizes to several hundred pounds per foot for larger diameters and thicker walls. The weight is influenced by factors such as the pipe's outer diameter, wall thickness, and length. For example, a 1-inch diameter steel pipe with a wall thickness of 0.125 inches may weigh around 0.67 pounds per foot, while a 12-inch diameter steel pipe with a wall thickness of 0.5 inches can weigh around 142 pounds per foot. The strength of steel pipes is determined by the grade of steel used, which can vary depending on the application and specific requirements. Common grades of steel used for pipes include ASTM A53 for general-purpose applications, ASTM A106 for high-temperature service, and API 5L for oil and gas transportation. These grades have different yield strengths and ultimate tensile strengths. Yield strength refers to the amount of stress a steel pipe can withstand before it begins to deform plastically. It is usually measured in pounds per square inch (psi) or megapascals (MPa). For example, ASTM A53 Grade B steel pipe has a minimum yield strength of 35,000 psi (240 MPa), while API 5L Grade X65 steel pipe has a minimum yield strength of 65,000 psi (448 MPa). Ultimate tensile strength, on the other hand, is the maximum stress a steel pipe can withstand before it fractures. It is also measured in psi or MPa. For instance, ASTM A106 Grade B steel pipe has an ultimate tensile strength of 60,000 psi (415 MPa), whereas API 5L Grade X65 steel pipe has an ultimate tensile strength of 77,000 psi (531 MPa). In summary, the weight and strength of steel pipes can vary depending on their dimensions and the grade of steel used. The weight is influenced by factors such as the pipe's diameter, wall thickness, and length, while the strength is determined by the steel's yield strength and ultimate tensile strength.
Q:What is the pressure rating of steel pipes?
The pressure rating of steel pipes varies depending on its size, wall thickness, and the type of steel used. It can range from a few hundred pounds per square inch (psi) for smaller pipes to several thousand psi for larger ones.
Q:What is the role of steel pipes in the construction of bridges?
Steel pipes play a vital role in the construction of bridges as they are used for various purposes such as providing structural support, carrying water or gas, and facilitating the transportation of electrical and communication cables. Their strength, durability, and ability to withstand heavy loads make them an essential component in bridge construction, ensuring the stability and longevity of the structure.
Q:What is the cost of steel pipes?
The cost of steel pipes can vary depending on various factors such as size, grade, quantity, and current market conditions. It is best to contact a supplier or check with local suppliers to get an accurate and up-to-date price quote.
Q:How do you prevent corrosion in steel pipes?
One effective way to prevent corrosion in steel pipes is by applying a protective coating, such as paint or epoxy, to the surface of the pipes. This barrier creates a physical barrier between the pipe and the surrounding environment, preventing moisture and corrosive agents from coming into direct contact with the steel. Additionally, regular inspection and maintenance of the pipes, including cleaning and repairing any damaged coating, can help identify and address potential issues before they lead to corrosion.
Q:How are steel pipes protected against corrosion in marine environments?
Steel pipes are protected against corrosion in marine environments through various methods, such as applying protective coatings, using sacrificial anodes, employing cathodic protection, and implementing corrosion inhibitors.
Q:How do steel pipes handle thermal expansion and contraction?
Steel pipes are able to handle thermal expansion and contraction due to their unique properties and design. When exposed to high temperatures, steel pipes expand as the molecules within the material gain energy and move more vigorously. Conversely, when exposed to low temperatures, steel pipes contract as the molecules lose energy and move less vigorously. To accommodate these changes, steel pipes are manufactured with certain features. One such feature is the allowance of clearance between pipe joints. This clearance allows for expansion and contraction without causing stress or deformation in the pipe. Additionally, the use of expansion joints or flexible connectors within the piping system helps to absorb the thermal movements and prevent damage. Furthermore, steel pipes are often installed with proper anchoring and support systems. These systems are designed to allow the pipes to freely expand and contract within a certain range without causing excessive stress or strain on the structure or surrounding components. Anchoring and support systems also help to maintain the overall stability and integrity of the piping system. In some cases, thermal insulation materials are applied to steel pipes to minimize temperature changes and reduce the effects of expansion and contraction. These insulating materials help to maintain a more consistent temperature within the pipe, reducing the magnitude of thermal movements. Overall, steel pipes are well-suited to handle thermal expansion and contraction due to their inherent strength and flexibility. With proper design, installation, and maintenance, steel pipes can effectively accommodate temperature changes without compromising their structural integrity or functionality.
Q:Are steel pipes suitable for nuclear power plants?
Steel pipes are an ideal choice for nuclear power plants. This is because steel is a commonly used material in the construction of these plants, thanks to its exceptional mechanical properties, high strength, and durability. Various applications in nuclear power plants rely on steel pipes, including the transportation of cooling water, hot gases, and steam. The steel used in nuclear power plants undergoes careful selection and testing to meet strict safety regulations and quality standards. This is crucial because these pipes must have outstanding resistance to corrosion and high-temperature environments. They are exposed to harsh conditions such as high pressure, high temperatures, and radioactive materials. Moreover, steel pipes have a long lifespan and require minimal maintenance. This makes them a cost-effective option for nuclear power plants. They can endure extreme conditions, ensuring the plant's safe and reliable operation. Additionally, steel pipes can be easily fabricated, installed, and repaired, which is vital for the efficient functioning of a nuclear power plant. In summary, steel pipes are highly suitable for nuclear power plants due to their strength, durability, resistance to corrosion, and ability to withstand extreme conditions.
Q:How do you measure the thickness of a steel pipe?
There are several ways to measure the thickness of a steel pipe. One common method is to use a specialized tool called a caliper or micrometer. This tool allows you to precisely measure the diameter of the pipe at various points, and by subtracting the inner diameter from the outer diameter, you can determine the thickness. Another approach is to use an ultrasonic thickness gauge, which uses sound waves to measure the thickness of the pipe. This non-destructive testing method is particularly useful for pipes that are already installed or are difficult to access. Additionally, you can also use a magnetic or eddy current thickness gauge, which relies on the principle of magnetism or electromagnetic induction to measure the thickness of the pipe.
Q:What are the different methods of pipe inspection for steel pipes?
Steel pipes can be inspected using various methods. Here are some commonly employed techniques: 1. Visual Inspection: Trained inspectors visually examine both the exterior and interior of the pipe to detect any visible defects or abnormalities. This preliminary method is often used before more advanced techniques are applied. 2. Magnetic Particle Inspection (MPI): By applying a magnetic field to the steel pipe and iron particles to its surface, inspectors can identify surface cracks or defects. Leakage of magnetic flux caused by these abnormalities can be detected with this method, which is particularly effective for ferromagnetic materials. 3. Ultrasonic Testing (UT): UT is a non-destructive testing method that utilizes high-frequency sound waves to identify internal defects or anomalies in steel pipes. A transducer sends ultrasonic waves into the pipe, and reflections or echoes of the sound waves are analyzed to determine the presence of defects, such as corrosion, cracks, or variations in wall thickness. 4. Radiographic Testing (RT): This method involves using X-rays or gamma rays to create an image of the internal structure of the steel pipe. The resulting image reveals any defects, such as cracks, corrosion, or weld discontinuities. RT is commonly used for inspecting welded joints. 5. Eddy Current Testing (ECT): ECT is a non-destructive testing technique that utilizes electromagnetic induction to detect surface and near-surface defects in steel pipes. By passing a coil carrying an alternating current over the pipe's surface, any changes in electrical conductivity or magnetic field caused by defects are detected and analyzed. 6. Acoustic Emission Testing (AET): AET involves detecting and analyzing high-frequency acoustic signals emitted by materials undergoing deformation or damage. In the case of steel pipes, AET can monitor and identify defects like cracks, leaks, or corrosion by analyzing the acoustic signals emitted during service or under stress. These methods are just a few examples of commonly used techniques for inspecting steel pipes. The choice of method depends on factors such as the type of defect being sought, accessibility of the pipe, desired sensitivity level, and cost and time constraints. Using a combination of inspection techniques is often recommended to ensure a thorough assessment of steel pipes.

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