• Galvanized welded steel pipe for materials System 1
  • Galvanized welded steel pipe for materials System 2
  • Galvanized welded steel pipe for materials System 3
Galvanized welded steel pipe for materials

Galvanized welded steel pipe for materials

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

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Item specifice

Standard:
EN,API,DIN,BS,GB,JIS,ASTM,AISI
Technique:
ERW,Forged,Cold Rolled,Hot Rolled,Extruded,Saw,Cold Drawn,Spring,EFW
Shape:
LTZ,Oval,Round,Hexagonal,C Channel,Square,Rectangular
Surface Treatment:
Galvanized
Steel Grade:
RHB335,HRB400,200 Series,300 Series,400 Series,600 Series,SS400-SS490,10#,20#,A53(A,B),Q235B,Q215B,Q235,Q215,Q195
Thickness:
3
Length:
2
Net Weight:
1

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 materials

Galvanized welded steel pipe for materials

Galvanized welded steel pipe for materials

 

 

Q:What are the different joining methods for steel pipes?
There are several different joining methods for steel pipes, including welding, threading, flanging, and mechanical coupling.
Q:How are steel pipes specified in engineering drawings?
Steel pipes are typically specified in engineering drawings by indicating their diameter, wall thickness, material grade, and length. Additional specifications may include the type of connection or joining method, surface finish requirements, and any specific standards or codes that need to be followed.
Q:What does "HBB" glass steel pipe mean?
Non electrical corrosion, non-magnetic, suitable for single core cable laying, and steel pipe is a magnetic material, special treatment must be taken to prevent the formation of eddy currents.
Q:What is the cost of steel pipes?
The cost of steel pipes can vary depending on factors such as the size, grade, and quantity needed, as well as market conditions and supplier. It is recommended to contact suppliers or check online platforms to get specific pricing information.
Q:How do you calculate the pressure drop in a steel pipe?
To calculate the pressure drop in a steel pipe, you need to consider several factors such as the diameter and length of the pipe, the flow rate of the fluid, and the properties of the fluid itself. One commonly used equation to calculate the pressure drop in a pipe is the Darcy-Weisbach equation, which is given as: ΔP = (f * (L / D) * (ρ * V^2)) / (2 * D) Where: ΔP is the pressure drop in the pipe f is the Darcy friction factor, which depends on the pipe roughness and Reynolds number L is the length of the pipe D is the diameter of the pipe ρ is the density of the fluid V is the velocity of the fluid To calculate the Darcy friction factor, you can use different methods depending on the flow regime. For laminar flow, you can use the formula f = 16 / Re, where Re is the Reynolds number. For turbulent flow, there are several methods to determine the friction factor, such as the Colebrook equation or the Moody chart. It is important to note that the properties of the fluid, such as its viscosity and density, may vary with temperature and pressure. Therefore, it is necessary to consider these variations when calculating the pressure drop. Additionally, it is worth mentioning that there are other factors that can affect the pressure drop in a steel pipe, such as fittings, valves, and elbows. These factors introduce additional losses, which can be accounted for by using appropriate correction factors or by directly measuring the pressure drop across these components. Overall, calculating the pressure drop in a steel pipe involves using the appropriate equations, considering the properties of the fluid, and accounting for the various factors that may affect the flow. It is recommended to consult relevant engineering handbooks or utilize specialized software for accurate calculations.
Q:What are the different types of steel pipe flanges?
There are several different types of steel pipe flanges, including slip-on flanges, weld neck flanges, socket weld flanges, threaded flanges, blind flanges, lap joint flanges, and orifice flanges. Each type has its own unique design and purpose, catering to specific applications and requirements in various industries.
Q:How are steel pipes tested for quality?
Steel pipes are tested for quality through various methods such as visual inspections, dimensional measurements, and various mechanical and chemical tests. These tests include assessing the pipe's surface finish, checking for any defects or cracks, measuring its dimensions, conducting tensile and impact tests, and analyzing its composition. Additionally, non-destructive testing techniques like ultrasonic testing, radiography, and magnetic particle inspection are employed to ensure the pipes meet the required quality standards.
Q:Can steel pipes be used for conveying solid materials?
Yes, steel pipes can be used for conveying solid materials. Steel pipes are commonly used in industries such as construction, oil and gas, and mining to transport solid materials such as ores, coal, grains, and various other solid substances. The durability and strength of steel make it suitable for handling the weight and pressure of solid materials during transportation.
Q:Can steel pipes be used for high-pressure applications?
Yes, steel pipes can be used for high-pressure applications. Steel is known for its strength and resilience, making it a suitable material for handling high-pressure fluids or gases. Additionally, steel pipes can withstand extreme temperatures and are resistant to corrosion, further enhancing their suitability for high-pressure applications.
Q:What are the different methods of protecting steel pipes from corrosion?
There are several methods of protecting steel pipes from corrosion, including: 1. Coatings: Applying protective coatings such as epoxy, polyethylene, or zinc to the surface of the steel pipes can create a barrier against corrosive elements. 2. Cathodic Protection: This method involves installing sacrificial anodes or impressed current systems to provide a protective current that counteracts the corrosion process. 3. Corrosion Inhibitors: Adding chemicals or inhibitors to the fluid or environment surrounding the pipes can reduce the rate of corrosion. 4. Internal Linings: Applying internal linings made of resin, cement, or other materials can protect the inner surface of the pipes from corrosion caused by the transported fluid. 5. Design Considerations: Implementing proper design practices like avoiding sharp bends and crevices, ensuring proper drainage, and using corrosion-resistant alloys can help prevent corrosion in steel pipes.

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