• China Seamless Steel Pipe/tube L & M & H Boiler Tube Factory System 1
  • China Seamless Steel Pipe/tube L & M & H Boiler Tube Factory System 2
China Seamless Steel Pipe/tube L & M & H Boiler Tube Factory

China Seamless Steel Pipe/tube L & M & H Boiler Tube Factory

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
20 m.t.
Supply Capability:
12000 m.t./month

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 Product Description:

▲ Line pipe
▲ Tubing and casing
▲ L & M & H boiler tube
▲ Gas cylinder tube & pipe
▲ Mechanical & Structural pipe
▲ Ship-building tube & pipe
▲ Automobile tube & pipe

 

L & M & H BOILER TUBE

Standard: GB3087: Seamless Steel Tubes for Low and Medium Pressure Boiler
● Application: For manufacturing heating-pipelines, containers, steaming pipelines of low or medium pressure
boilers (p≤450℃, work pressure ≤5.88 Mpa)

 

2、‍‍Main Features of the Seamless Pipe :

• High manufacturing accuracy

• The higher strength

• The small inertia resistance

• Strong heat dissipation ability

• Good visual effect

• Satisfy price 

 

3、Seamless Pipe ASTM DIN1829 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. 

 

4、Packaging & Delivery

Packaging   Details:

seaworthy   package,bundles wrapped with strong steel strip

Delivery   Detail:

15-30days   after received 30%TT

 

5、FAQ of Seamless Pipe ASTM DIN1829:  

①How is the quality of your products?
     We have many years business experience in this area, and we have professional engineer and manager team and sure we can provide you high quality production and professional service.

②How 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.

③Why should you chose us?
    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

our advantage:

Professional teams ensure a high efficiency of your purchase
▲ Professional sales team
▲ Professional engineering and technology team
▲ Professional exportation and contract processing/management team
▲ Professional cooperators and partners

 

6、‍‍Seamless Pipe Images: ‍‍

 

 

China Seamless Steel Pipe/tube L & M & H Boiler Tube Factory

 

 

China Seamless Steel Pipe/tube L & M & H Boiler Tube Factory

 

 

China Seamless Steel Pipe/tube L & M & H Boiler Tube Factory

 

 

 

 

 

 

 

 

Q:How do you calculate the flow rate through a steel pipe?
To calculate the flow rate through a steel pipe, you need to consider several factors. The most important ones are the diameter of the pipe, the pressure difference across the pipe, and the properties of the fluid flowing through it. Firstly, measure the inside diameter of the steel pipe accurately. This measurement is essential as it determines the cross-sectional area through which the fluid flows. The units for the diameter should be consistent with the units used for other measurements. Next, determine the pressure difference across the pipe. This can be done by measuring the pressure at two points along the pipe, typically at the inlet and outlet. The pressure measurements should be taken at the same height 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 use the Bernoulli equation or the Darcy-Weisbach equation to calculate the flow rate. The Bernoulli equation relates the pressure difference to the velocity of the fluid. However, this equation assumes ideal conditions, neglecting factors such as friction losses, viscosity, and turbulence. The Darcy-Weisbach equation is more accurate and considers these factors. To use the Darcy-Weisbach equation, you need to know the properties of the fluid flowing through the pipe, such as its density and viscosity. These properties can be determined either through experimentation or by referring to literature values. Once you have all the necessary information, you can use the Darcy-Weisbach equation: Q = (π/4) * D^2 * √[(2 * ΔP) / (ρ * f * L)] Where: Q is the flow rate (in cubic meters per second or any other consistent units) D is the diameter of the pipe (in meters or any other consistent units) ΔP is the pressure difference across the pipe (in Pascals or any other consistent units) ρ is the density of the fluid flowing through the pipe (in kilograms per cubic meter or any other consistent units) f is the friction factor, which depends on the Reynolds number and the roughness of the pipe. L is the length of the pipe (in meters or any other consistent units) By plugging in the values for all the variables, you can calculate the flow rate through the steel pipe accurately.
Q:Can steel pipes be used for conveying steam?
Indeed, steam can be conveyed using steel pipes. Steel pipes find frequent application in steam distribution systems owing to their impressive strength and long-lasting nature. They possess the ability to endure high temperatures and pressures associated with steam transportation without succumbing to deformation or leakage. Furthermore, steel pipes exhibit remarkable heat resistance properties, rendering them suitable for conveying steam at elevated temperatures. Nevertheless, it is crucial to guarantee adequate insulation of the steel pipes in order to avert heat loss and uphold the desired steam temperature throughout the transportation process.
Q:What are the different methods of pipe joining using steel pipes?
Some of the different methods of pipe joining using steel pipes include butt welding, socket welding, threaded connections, and flange connections.
Q:Can steel pipes be used for oil and gas well production?
Yes, steel pipes can be used for oil and gas well production. Steel pipes are commonly used in the oil and gas industry due to their high strength and durability, which allows them to withstand the harsh conditions of drilling and production processes. Additionally, steel pipes can efficiently transport oil and gas over long distances, making them a preferred choice in the industry.
Q:How do steel pipes resist corrosion?
Steel pipes resist corrosion through a process called passivation, where a protective layer of chromium oxide forms on the surface of the steel, preventing direct contact with corrosive elements and slowing down the oxidation process. Additionally, steel pipes can be coated with protective layers such as zinc or epoxy to provide an extra barrier against corrosion.
Q:How are steel pipes used in the manufacturing of sewage treatment plants?
Steel pipes are commonly used in the manufacturing of sewage treatment plants primarily for their durability, strength, and resistance to corrosion. These pipes are utilized for various purposes within the treatment process, including transporting sewage and wastewater between different treatment units, carrying chemicals for disinfection or neutralization, and providing structural support for the plant's infrastructure.
Q:How are steel pipes protected against soil movement?
Steel pipes are protected against soil movement through various methods such as using casing pipes, employing anchor systems, implementing protective coatings, and utilizing concrete thrust blocks. These measures ensure that the steel pipes remain stable and secure in the event of soil movement.
Q:How are steel pipes tested for leaks?
Steel pipes can be tested for leaks using various methods, including hydrostatic testing, pneumatic testing, and using leak detection equipment such as ultrasonic testing or helium testing.
Q:How are steel pipes used in the construction of airports?
Steel pipes are used in the construction of airports for various purposes such as drainage systems, fuel pipelines, water supply networks, and structural support for buildings and runways.
Q:What does GALV mean in a steel tube?
GALV is the abbreviation of English galvanized (Galvanized), which means galvanized steel pipe.

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