• Seamless Steel Pipe  API 5L GRADE B System 1
  • Seamless Steel Pipe  API 5L GRADE B System 2
  • Seamless Steel Pipe  API 5L GRADE B System 3
Seamless Steel Pipe  API 5L GRADE B

Seamless Steel Pipe API 5L GRADE B

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Loading Port:
China Main Port
Payment Terms:
TT or LC
Min Order Qty:
25 m.t.
Supply Capability:
60000 m.t./month

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1Structure of Seamless Steel Pipe  API 5L GRADE B: 

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.

 

2‍‍Main Features of Seamless Steel Pipe  API 5L GRADE B:

• High manufacturing accuracy

• High strength

• Small inertia resistance

• Strong heat dissipation ability

• Good visual effect

• Reasonable price 

 

3Seamless Steel Pipe  API 5L GRADE B Specification

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

 

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!
4) Surface:black lacquered,varnish coating or galvanized.
5) Ends:Beveled or square cut,plastic capped,painted.
6) Packing:bundles wrapped with strong steel strip,seaworthy packing. 

 

 

4Packaging & Delivery

Packaging Details:

seaworthy package,bundles wrapped with strong steel strip

Delivery Detail:

15-30days after received 30%TT

 

5FAQ of Seamless Steel Pipe  API 5L GRADE B:  

How is the quality of your products?
    Our products are manufactured strictly according to national and internaional standard, and we take a test 
on every pipe before delivered out. If you want see our quality certifications and all kinds of testing report, please just ask us for it.
Guaranteed: If products’ quality don’t accord to discription as we give or the promise before you place order, we promise 100% refund.

How about price?
    Yes, we are factory and be able to give you lowest price below market one, and we have a policy that “ for saving time and absolutely honest business attitude, we quote as lowest as possible for any customer, and discount can be given according to quantity”,if you like bargain and factory price is not low enough as you think, just don’t waste your time.Please trust the quotation we would give you, it is professional one.

Why should you chose us?
    Chose happens because of quality, then price, We can give you both.Additionally, we can also offer professional products inquiry, products knowledge train(for agents), smooth goods delivery, exellent customer solution proposals.Our service formula: good quality+good price+good service=customer’s trust
SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem.

 

6‍‍Seamless Pipe ASTM A106/53 Images ‍‍

Seamless Steel Pipe  API 5L GRADE B

Q:How are steel pipes measured and labeled?
Steel pipes are typically measured and labeled based on their diameter, wall thickness, and length. The diameter is measured in inches or millimeters, while the wall thickness is often expressed in inches or schedule numbers. The length is usually specified in feet or meters. Additionally, steel pipes may also bear labels indicating the type of steel used, industry standards compliance, and any specific certifications or markings required.
Q:Are galvanized steel tubes the same as degaussing steel tubes?
Also known as galvanized steel pipe, hot galvanized and galvanized two kinds, hot galvanized, zinc coating thickness, with uniform coating, adhesion, and long service life. The cost of galvanizing is low, the surface is not very smooth, and the corrosion resistance of itself is much worse than that of galvanized pipe.
Q:What is a flange and how is it used in steel pipes?
A flange is a mechanical joint used to connect two sections of steel pipes or other equipment together. It consists of a ring or plate with evenly spaced holes for bolts or welding. Flanges are used in steel pipes to provide a secure and leak-proof connection. They allow for easy assembly and disassembly of pipes, as well as provide a connection point for additional components like valves, fittings, or other pipe accessories.
Q:Can steel pipes be used for heat exchangers?
Yes, steel pipes can be used for heat exchangers. Steel pipes are commonly used in heat exchangers due to their strength, durability, and excellent thermal conductivity properties. They are capable of withstanding high temperatures and pressures, making them suitable for various industrial applications.
Q:What's the difference between hot dip galvanizing and cold galvanizing? Which kind of galvanizing method is good?
Cold galvanizing refers to the zinc plating, the coating is thinner, corrosion resistance is slightly worse, variable color. Environmental pollution.Hot dip galvanized by molten zinc ingots, the coating thickness can be adjusted, good corrosion resistance, and subsequent passivation, can be used for outdoor rust, long service life, some up to 20 years.
Q:What are the different methods of heat treatment for steel pipes?
There are several methods of heat treatment for steel pipes, including annealing, normalizing, quenching, tempering, and stress relieving.
Q:How do you calculate the flow rate in a steel pipe?
To calculate the flow rate in a steel pipe, several parameters need to be considered. The first and most important parameter is the cross-sectional area of the pipe, which can be calculated using the formula A = πr², where A is the cross-sectional area and r is the radius of the pipe. Next, the velocity of the fluid flowing through the pipe needs to be determined. This can be done using the equation v = Q/A, where v is the velocity, Q is the volumetric flow rate, and A is the cross-sectional area of the pipe. To calculate the volumetric flow rate, the equation Q = AV can be used, where Q is the volumetric flow rate, A is the cross-sectional area, and V is the average velocity of the fluid. Additionally, it is important to take into account the properties of the fluid being transported through the pipe. The density and viscosity of the fluid can affect the flow rate. Overall, the flow rate in a steel pipe can be calculated by determining the cross-sectional area of the pipe, calculating the velocity of the fluid, and considering the properties of the fluid being transported.
Q:How do you calculate the pipe thermal expansion for steel pipes?
In order to calculate the thermal expansion of steel pipes, one must take into account the material's coefficient of thermal expansion (CTE), the temperature fluctuation, and the pipe's length. The CTE represents the extent to which a material expands or contracts in response to temperature changes. For steel, the average CTE is typically approximately 12 x 10^-6 per degree Fahrenheit (or 6.5 x 10^-6 per degree Celsius). However, this value may vary depending on the specific grade of steel. Subsequently, the temperature change that the pipe will encounter must be determined. This can be the discrepancy between the operating temperature and the ambient temperature, or the temperature variation caused by the fluid or gas flowing through the pipe. Finally, the thermal expansion can be calculated using the following formula: Thermal Expansion = CTE x Length x Temperature Change Where: - CTE signifies the coefficient of thermal expansion - Length denotes the pipe's length - Temperature Change represents the temperature difference For instance, if a steel pipe has a length of 10 meters (32.8 feet) and experiences a temperature change of 100 degrees Celsius (180 degrees Fahrenheit), assuming a CTE of 12 x 10^-6 per degree Celsius, the thermal expansion would amount to: Thermal Expansion = 12 x 10^-6 x 10 x 100 = 0.012 meters (or 12 millimeters) This means that the pipe would expand by 12 millimeters due to the temperature alteration. It is important to note that this calculation provides an approximation of the thermal expansion. However, other factors such as pipe supports, restraints, and the specific application should also be taken into consideration to ensure the proper design and installation of the steel pipe system.
Q:What are the different methods of pipe insulation for steel pipes?
There are several methods of pipe insulation for steel pipes, including foam insulation, fiberglass insulation, mineral wool insulation, and reflective insulation. Foam insulation is a popular choice as it provides excellent thermal insulation and is easy to install. Fiberglass insulation is another common option that offers good thermal and acoustic insulation properties. Mineral wool insulation is known for its fire resistance and is often used in high-temperature applications. Reflective insulation, on the other hand, utilizes a reflective surface to reduce heat transfer and is commonly used in hot climates.
Q:How are steel pipes used in the defense sector?
Steel pipes are used in the defense sector for various purposes such as constructing military infrastructure, including bunkers, underground facilities, and missile silos. They are also utilized in the manufacturing of military vehicles, weapons systems, and equipment. Steel pipes provide strength, durability, and resistance to extreme conditions, making them ideal for applications in the defense sector.

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