• High Quality Seamless Steel pipe Made in china System 1
  • High Quality Seamless Steel pipe Made in china System 2
  • High Quality Seamless Steel pipe Made in china System 3
  • High Quality Seamless Steel pipe Made in china System 4
High Quality Seamless Steel pipe Made in china

High Quality Seamless Steel pipe Made in china

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
2000000 m.t./month

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1Structure of High Quality Seamless Steel pipe Made in china: 

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 High Quality Seamless Steel pipe Made in china:

• High manufacturing accuracy

• High strength

• Small inertia resistance

• Strong heat dissipation ability

• Good visual effect

• Reasonable price  

 

3High Quality Seamless Steel pipe Made in china 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 High Quality Seamless Steel pipe Made in china:  

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.

 

6High Quality Seamless Steel pipe Made in china Images ‍‍

 

High Quality Seamless Steel pipe Made in china

High Quality Seamless Steel pipe Made in china

High Quality Seamless Steel pipe Made in china

 

Q: What is the typical diameter range for steel pipes?
The typical diameter range for steel pipes varies, but it typically falls between 1/2 inch to 48 inches.
Q: How are steel pipes used in hydroelectric power plants?
Steel pipes are used in hydroelectric power plants to transport water from the reservoir to the turbines. These pipes are designed to withstand high pressure and are often used for penstocks, which are large vertical pipes that deliver water to the turbines at a controlled rate. The durability and strength of steel pipes make them ideal for withstanding the force of the flowing water and ensuring a reliable water supply for power generation.
Q: What are the different types of steel pipe coatings for underground applications?
There are several types of steel pipe coatings used for underground applications, including fusion bonded epoxy (FBE) coating, three-layer polyethylene (3LPE) coating, three-layer polypropylene (3LPP) coating, and coal tar enamel (CTE) coating. Each of these coatings provides different levels of protection against corrosion and abrasion, ensuring the longevity and durability of the steel pipes in underground environments.
Q: How do you calculate the flow rate through a steel pipe?
Several factors need to be considered in order to calculate the flow rate through a steel pipe. The crucial factors include the pipe's diameter, the pressure difference across the pipe, and the properties of the fluid flowing through it. Accurate measurement of the inside diameter of the steel pipe is the first step. This measurement is vital as it determines the cross-sectional area through which the fluid flows. Ensure that the units used for the diameter measurement are consistent with the units used for other measurements. Next, determine the pressure difference across the pipe. This can be accomplished by measuring the pressure at two points along the pipe, typically at the inlet and outlet. It is important to take the pressure measurements at the same height in order to avoid any discrepancies. The pressure difference is usually given in units of pressure, such as psi, kPa, or bar. Once you have the diameter and pressure difference, you can utilize either the Bernoulli equation or the Darcy-Weisbach equation to calculate the flow rate. The Bernoulli equation establishes a relationship between the pressure difference and the fluid's velocity. However, this equation assumes ideal conditions and overlooks factors like friction losses, viscosity, and turbulence. On the other hand, the Darcy-Weisbach equation is more accurate as it considers these factors. To employ the Darcy-Weisbach equation, you must be aware of the fluid's properties that flow through the pipe, such as density and viscosity. These properties can be determined either through experimentation or by referring to literature values. After gathering all the necessary information, you can use the Darcy-Weisbach equation: Q = (π/4) * D^2 * √[(2 * ΔP) / (ρ * f * L)] Where: Q represents the flow rate, measured in cubic meters per second or any other consistent units. D is the diameter of the pipe, measured in meters or any other consistent units. ΔP is the pressure difference across the pipe, measured in Pascals or any other consistent units. ρ is the density of the fluid flowing through the pipe, measured in kilograms per cubic meter or any other consistent units. f signifies the friction factor, which relies on the Reynolds number and the roughness of the pipe. L represents the length of the pipe, measured in meters or any other consistent units. By substituting the appropriate values for all the variables, you can accurately calculate the flow rate through the steel pipe.
Q: What are the different methods of pipe repair for steel pipes?
There are several methods for repairing steel pipes, including spot repair, slip lining, pipe bursting, and pipe relining. Spot repair involves cutting out and replacing a small section of the damaged pipe. Slip lining involves inserting a smaller diameter pipe into the existing pipe to reinforce it. Pipe bursting involves breaking the old pipe while simultaneously installing a new one. Pipe relining involves inserting a liner into the damaged pipe and then curing it in place to create a new, seamless pipe within the existing one. The choice of method depends on the extent and location of the damage, as well as budget and time constraints.
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 are the different grades of steel used in pipe manufacturing?
There are various grades of steel used in pipe manufacturing, including carbon steel, alloy steel, stainless steel, and duplex steel.
Q: What is the difference between steel pipes and concrete-lined pipes?
Steel pipes are made entirely of steel and are known for their strength and durability. They are commonly used in various applications, including transporting liquids and gases, as well as structural support. On the other hand, concrete-lined pipes are made of steel with a layer of concrete applied to the inner surface. This concrete lining provides additional protection against corrosion and abrasion, making them suitable for transporting corrosive materials or in aggressive environments. The concrete lining also helps in reducing friction within the pipe, resulting in improved flow efficiency.
Q: How are steel pipes protected from damage during transportation?
Steel pipes are typically protected from damage during transportation through various methods such as wrapping them in protective coatings, using foam inserts, securing them with straps or braces, and placing them in sturdy packaging materials to prevent any movement or impact. Additionally, pipes may also be stored and transported in specialized containers or racks specifically designed for their safe transportation.
Q: What is the typical lifespan of steel pipes?
The typical lifespan of steel pipes can vary depending on various factors such as the quality of the steel used, the environmental conditions, and the maintenance and usage of the pipes. However, on average, steel pipes are known to have a lifespan of around 50 to 100 years. With proper installation, regular inspections, and appropriate maintenance, steel pipes can often exceed this lifespan and provide reliable service for several decades. It is important to note that factors such as corrosion, erosion, and external damage can impact the lifespan of steel pipes, so it is crucial to implement preventive measures and necessary repairs to ensure their longevity.

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