• Galvanized welded steel pipe for Mechanical Engineering System 1
  • Galvanized welded steel pipe for Mechanical Engineering System 2
  • Galvanized welded steel pipe for Mechanical Engineering System 3
Galvanized welded steel pipe for Mechanical Engineering

Galvanized welded steel pipe for Mechanical Engineering

Ref Price:
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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
12 m.t.
Supply Capability:
20000 m.t./month

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Item specifice

Standard:
BS
Technique:
ERW,Saw
Shape:
Square,Round,Rectangular
Surface Treatment:
Galvanized
Steel Grade:
Q195,Q215,Q235,Q235B
Thickness:
15
Length:
9
Net Weight:
3

1Structure of  Galvanized welded steel pipe for materials :

The surface of galvanized steel pipe welded steel pipe of hot dip galvanized layer or. Galvanized can increase the corrosion resistance of the steel tube, prolong service life. Galvanized pipe is widely used, in addition to water, gas, oil and other general low pressure fluid pipelines. It is also used in the petroleum industry, especially for offshore oil field of oil well pipe and oil pipe, chemical, coking equipment of oil heater, condensation cooler, coal run oil exchanger tube, and trestle pile, the mine tunnel support frame tube.

 

2‍‍Main Features of  Galvanized welded steel pipe for building materials :

 

• High manufacturing accuracy

• High strength

• Good visual effect

• Reasonable price 

 

3 Galvanized welded steel pipe for building materials  Specification

Standard

GB, DIN, ASTM

ASTM A106-2006, ASTM A53-2007

Grade

10#-45#, 16Mn

10#, 20#, 45#, 16Mn

Thickness

1 - 33 mm

Section Shape

Round

Outer Diameter

21 - 610mm

Place of Origin

Tianjin, 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:Q195 Q235 Q345 X42 X52

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  

 

4Packaging & Delivery

Packaging Details:

seaworthy package,bundles wrapped with strong steel strip

Delivery Detail:

15-30days after received 30%TT

 

5FAQ of  Galvanized welded steel pipe for building materials :

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.

 

6‍‍  Galvanized welded steel pipe for building materials  Images ‍‍

Galvanized welded steel pipe for Mechanical Engineering

Galvanized welded steel pipe for Mechanical Engineering

Galvanized welded steel pipe for Mechanical Engineering

 

 

 

Q:How do you clean steel pipes?
To clean steel pipes, you can start by flushing them with water to remove any loose debris or dirt. Next, you can use a suitable cleaning solution specifically designed for steel pipes and apply it using a brush or sponge. Scrub the pipes thoroughly, paying attention to any stubborn stains or buildup. Rinse the pipes with water again to remove the cleaning solution, and finally, dry them thoroughly to prevent rusting.
Q:What are the factors affecting the pressure rating of steel pipes?
The factors affecting the pressure rating of steel pipes include the material of the pipe, its thickness, diameter, and quality, as well as the temperature and type of fluid being transported. Additionally, the operating conditions, such as the level of stress or strain on the pipe, also play a significant role in determining its pressure rating.
Q:How are steel pipes coated for protection against external elements?
Steel pipes can be coated for protection against external elements through a process called corrosion protection coating. This typically involves applying a layer of protective coating, such as epoxy or polyethylene, onto the surface of the steel pipes. The coating acts as a barrier, preventing moisture, chemicals, and other external elements from coming into direct contact with the steel, thus reducing the risk of corrosion and extending the lifespan of the pipes.
Q:Galvanized steel pipe, PPR pipe, PE pipe, U-PVC pipe and HDPE double wall corrugated pipe and what is the difference between the characteristics of
PE pipe, polyethylene pipe, the past is also commonly used in low temperature water, but because of its short life now use less prone to aging, more PE material for the production of plastic bags;
Q:What are the uses of seamless steel tubes?
A large number of pipes used for conveying fluids, such as pipelines for transporting petroleum, natural gas, gas, water, and certain solid materials.
Q:How are steel pipes used in the construction of oil and gas pipelines?
Steel pipes are commonly used in the construction of oil and gas pipelines due to their high strength, durability, and resistance to corrosion. These pipes are employed to transport crude oil and natural gas from extraction sites to refineries and distribution centers. They provide a reliable and efficient means of transporting these valuable resources over long distances, ensuring a safe and secure supply of energy. Additionally, steel pipes are capable of withstanding high pressure and extreme temperature conditions, making them suitable for the demanding environment of oil and gas transportation.
Q:How are steel pipes protected against internal scaling?
Internal coating or lining is a process employed to safeguard steel pipes from internal scaling. This entails applying a protective layer on the inside of the pipe to prevent the formation of scales or deposits. Multiple techniques are utilized for this purpose. One prevalent approach is the application of epoxy coatings. Epoxy, a resilient and corrosion-resistant material, forms a continuous barrier on the pipe's interior. It effectively hinders the accumulation of minerals and other substances that contribute to scaling. Epoxy coatings are commonly sprayed or brushed onto the inner surface of the pipe and then hardened to create a durable and smooth finish. Cement mortar lining is another method used to protect steel pipes from internal scaling. This involves applying a layer of cement mortar to the pipe's interior. The cement mortar acts as a barrier against scaling and offers additional corrosion protection. This lining process is typically employed for large-diameter pipes utilized in water distribution systems. Polyethylene (PE) lining is yet another technique deployed to safeguard steel pipes against internal scaling. PE lining necessitates the insertion of a high-density polyethylene liner into the pipe. This liner acts as a barrier against scaling and enhances fluid flow by reducing friction. PE lining is frequently used in applications that require a smooth interior surface, such as oil and gas pipelines. Apart from these methods, regular maintenance and cleaning of the pipes can also aid in preventing internal scaling. This may involve using chemical cleaning agents or mechanical cleaning techniques to eliminate any deposits that have formed on the pipe's interior surface. Overall, safeguarding steel pipes against internal scaling is vital to maintain their efficiency and prolong their lifespan. By employing various coating and lining methods, along with implementing appropriate maintenance practices, the risk of internal scaling can be significantly diminished.
Q:What is the difference between black and galvanized steel pipes?
The main difference between black and galvanized steel pipes lies in their coating. Black steel pipes are untreated and have a dark, uncoated appearance, while galvanized steel pipes are coated with a layer of zinc to prevent corrosion. This zinc coating on galvanized pipes helps protect against rust and extends their lifespan, making them suitable for outdoor and exposed applications. Black steel pipes, on the other hand, are typically used for indoor applications and are often painted or coated after installation to prevent rusting.
Q:How do steel pipes connect to other components?
Steel pipes can connect to other components through various methods such as welding, threading, flanges, or mechanical couplings.
Q:How to perform nondestructive inspection of steel tubes
The detection principle is based on the ferromagnetic material is magnetized in a magnetic field, discontinuity materials and products (defects) produce leakage magnetic field, magnetic powder adsorption (or detecting) and appear (or on the instrument display). Therefore, this method can only be used for the inspection of the surface or near surface defects of ferromagnetic materials or products.

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