China Professional Welded Steel Tube Steel Pipes manufacturer
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 9000 m.t./month
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Product Description:
1、Structure of Welded Steel Tube ASTM DIN1829:
Welded Steel Tube is formed by drawing a solid billet over a piercing rod to create the hollow shell. We are company that have many years experience and professional manager team and engineer team and sales team, sure we will provide you high quality of welded pipe and professioanl service.
2、Main Features of the Seamless Pipe ASTM DIN1829:
• 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 |
4、Packaging & Delivery
Packaging Details: | seaworthy package,bundles wrapped with strong steel strip |
Delivery Detail: | 15-30days after received 30%TT |
5、images of products：
FAQ of Welded Steel Tube Steel Pipes:
①Quality
Our products are manufactured strictly according to national and internaional standard, and before delivered out we always take a test
on every pipe . If necessary we could provide our quality certifications and all kinds of testing report,.
Guaranteed: If products’ quality don’t accord to discription as we give or the promise before you place order, we promise 100% refund.
②Price
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 us?
We can provide both low price and good quality especially we are belong to national company could provide you the best sell-after service .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
Our Advantages:
1) Fast Delivery: lot of high quality steel pipe in stock lot of factory to produce
2) Quality Assured: Strictly acc. To International standard with System ISO certification
3) Good Service: supplied professional technical guide free of charge at anytime;
4) Reasonable Price: to be better support your business;
SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem.
Looking forward to doing the corporation with you
Any question, kindly feel free to contact us !
- Q:Can steel pipes be used for underground air supply systems?
- Yes, steel pipes can be used for underground air supply systems. Steel pipes are often used in underground applications due to their strength, durability, and resistance to external factors such as corrosion and impact. They can withstand the pressure and temperature requirements of air supply systems and can be easily installed underground. Additionally, steel pipes have a long lifespan, making them a cost-effective choice for underground air supply systems. However, it is important to consider factors such as soil conditions, potential for corrosion, and local regulations when selecting the appropriate steel pipes for the specific underground air supply system.
- Q:What are the uses of welded steel pipes?
- Ordinary carbon steel wire bushings (GB3640-88) are industrial and civil construction, installation of machinery, equipment and other electrical installation works for the protection of electric wire.
- Q:How do you calculate the pipe flow rate for steel pipes?
- In order to calculate the flow rate of steel pipes, one must take into account various factors. Initially, the inside diameter of the pipe, which is commonly represented as D, needs to be determined. Subsequently, the length of the pipe, denoted as L, should be measured. Furthermore, one must be aware of the pressure drop, ΔP, across the pipe and the density of the fluid, ρ. Once all this information is obtained, either the Darcy-Weisbach equation or the Hazen-Williams equation can be utilized to calculate the flow rate. The Darcy-Weisbach equation is typically employed for pipes with turbulent flow, whereas the Hazen-Williams equation is commonly used for pipes with laminar flow. For the Darcy-Weisbach equation, the formula is as follows: Q = (π/4) * D^2 * √(2ΔP/ρ) Here, Q denotes the flow rate in cubic meters per second, D represents the inside diameter of the pipe in meters, ΔP signifies the pressure drop across the pipe in pascals, and ρ stands for the fluid density in kilograms per cubic meter. On the other hand, for the Hazen-Williams equation, the formula is as follows: Q = C * (D^2.63) * (ΔP^0.54) * (L^0.63) In this case, Q represents the flow rate in cubic meters per second, D denotes the inside diameter of the pipe in meters, ΔP signifies the pressure drop across the pipe in pascals, L represents the length of the pipe in meters, and C represents the Hazen-Williams coefficient, which relies on the roughness of the pipe. To ensure an accurate calculation of the pipe flow rate, it is imperative to maintain consistent units of measurement throughout the calculation. Additionally, precise measurements of the inside diameter, length, pressure drop, and fluid density are crucial in obtaining reliable results.
- Q:Can steel pipes be used for structural purposes?
- Yes, steel pipes can be used for structural purposes. They are often used in construction projects to create strong and durable building frameworks, as well as in various engineering applications where load-bearing capacity is required.
- Q:What material is RHS in the steel tube?
- SHS stands for thin-walled square steel tubes in the structure and represents the self ignition ceramic composite steel tube in the material
- Q:What are the different testing methods used for steel pipes?
- To ensure the quality and reliability of steel pipes, various testing methods are employed. These methods include: 1. Non-destructive Testing (NDT): Ultrasonic testing, magnetic particle inspection, and liquid penetrant testing are utilized in NDT to identify surface or subsurface defects in steel pipes without causing any damage. 2. Mechanical Testing: Mechanical testing encompasses various tests to evaluate the mechanical properties of steel pipes, such as tensile strength, yield strength, elongation, hardness, and impact resistance. These tests determine the structural integrity and performance of the pipes. 3. Hydrostatic Testing: This method involves subjecting steel pipes to high-pressure water to assess their ability to withstand expected operating conditions. The pipes are filled with water and pressurized to a predetermined level for a specified duration. Any leaks or deformations are detected during this test. 4. Dimensional Inspection: This testing method ensures that steel pipes meet specified dimensional requirements. It involves measuring critical dimensions such as diameter, wall thickness, and length to verify compliance with applicable standards. 5. Visual Inspection: Trained inspectors visually assess the external appearance of steel pipes using this basic method. They examine the pipes for surface defects such as cracks, corrosion, or irregularities in shape or finish. 6. Chemical Analysis: Chemical analysis is conducted to determine the composition and elemental content of steel pipes. It ensures that the pipes are made from the correct grade of steel and meet required chemical composition standards. 7. Metallographic Examination: Metallography involves examining the microstructure of steel pipes under a microscope to evaluate their quality and integrity. It helps identify internal defects like grain boundaries, inclusions, or improper heat treatment that may impact overall performance. By employing these testing methods, manufacturers and inspectors can guarantee that steel pipes meet necessary quality standards and are suitable for their intended applications.
- Q:What are the different types of steel pipe fittings for plumbing systems?
- There are several different types of steel pipe fittings for plumbing systems, including elbows, tees, couplings, unions, reducers, and flanges.
- Q:How are steel pipes used in the construction of underground utilities?
- Steel pipes are commonly used in the construction of underground utilities due to their durability and strength. They are used to transport various substances such as water, gas, and sewage underground, ensuring efficient and reliable distribution. Steel pipes are resistant to corrosion and can withstand high pressure, making them ideal for underground applications where they need to withstand the weight of the soil and other environmental factors. Additionally, steel pipes are easy to install and maintain, making them a cost-effective choice for underground utility construction projects.
- Q:Are steel pipes resistant to vibration?
- Yes, steel pipes have excellent resistance to vibration due to their high strength and stiffness properties. The inherent rigidity of steel makes it highly resistant to the effects of vibration, making steel pipes a reliable choice for applications where vibration is a concern.
- Q:What is the process of spiral steel tube production?
- 1. open panel inspection: after the steel plate is opened, the product line is entered, and the ultrasonic examination of the whole plate is carried out first.2., flat milling: through the anvil machine to make the original coiled steel flat, and then through the milling machine on the edge of the steel plate two sides milling, so as to achieve the required plate width, plate edge parallelism and groove shape.
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Send your message to us
China Professional Welded Steel Tube Steel Pipes manufacturer
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 9000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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