ERW steel pipe with high quality and cerficate
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 watt
- Supply Capability:
- 8000 watt/month
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1、Structure of Welded Steel Tube:
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 Welded Steel Tube:
• High manufacturing accuracy
• The higher strength
• The small inertia resistance
• Strong heat dissipation ability
• Good visual effect
• Satisfy price
3、Welded Steel Tube 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 Welded Steel Tube:
①How is the quality of your products?
Our products are strictly in accordance with international and domestic standard. We test on every pipe before delivery. Any quality certification or testing report you want to see, please tell us.
Guaranteed: If products’ quality is not in accordance with description as we provide or the promise before you place order, we promise 100% refund.
②How about the price?
Yes, we are factory and be capable of offering you the lowest price. One of our policy is that “ to save time and be absolutely honest with our business relationship, we quote as low as possible for every client, and discount can be given according to the quantity”, if you are interested in bargain and dissatisfy our factory price, just don’t waste your time. Our quotation is professional.
③Why should you choose us?
Choice happens because of our quality and price. Additionally, we can also offer professional products inquiry, products knowledge train (for agents), fast goods delivery, outstanding 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 OK.
6、 Welded Steel Tube Images：
- Q: Seamless steel tube DN15 specification phi 18*3 what do you mean?
- Seamless steel pipe having a hollow cross section, used as a conduit for conveying fluids, such as pipelines for transporting petroleum, natural gas, gas, water, and certain solid materials. Compared with solid steel such as round steel, steel tube is lighter in strength and equal in resistance to bending and torsion. It is an economical cross section steel and is widely used in the manufacture of structural and mechanical parts.
- Q: How are steel pipes used in industrial manufacturing processes?
- Steel pipes are commonly used in industrial manufacturing processes for various purposes such as transporting fluids, gases, and solids, as well as providing structural support. They are used in industries like oil and gas, construction, automotive, and chemical manufacturing. Steel pipes offer high durability, strength, and resistance to corrosion, making them ideal for handling harsh environments and high-pressure applications. Additionally, they can be easily welded, bent, and manipulated to fit specific requirements, allowing for efficient and cost-effective installations.
- Q: Can steel pipes be used for electrical conduits?
- No, steel pipes are not typically used for electrical conduits as they are conductive and can pose a safety risk. Electrical conduits are usually made of non-conductive materials such as PVC or metal with insulating coatings.
- Q: What is the importance of corrosion resistance in steel pipes?
- The importance of corrosion resistance in steel pipes is crucial as it helps to extend the lifespan of the pipes and maintain their structural integrity. Corrosion can weaken the pipes, leading to leaks, breakages, and ultimately, costly repairs or replacements. By preventing or minimizing corrosion, steel pipes can effectively transport fluids or gases, ensuring safety, efficiency, and longevity in various industries such as oil and gas, water supply, and construction.
- Q: How do you calculate the pipe flow rate coefficient for steel pipes?
- In order to determine the pipe flow rate coefficient for steel pipes, one must consider several factors pertaining to the pipe's dimensions, material properties, and the fluid that is flowing through it. The pipe flow rate coefficient, which is also known as the discharge coefficient (Cd), is a dimensionless quantity that represents the efficiency of the fluid flow within the pipe. To calculate the pipe flow rate coefficient for steel pipes, the following steps should be followed: 1. Find the inside diameter (ID) of the steel pipe. This measurement corresponds to the internal cross-sectional area of the pipe through which the fluid passes. 2. Use the formula A = π * (ID/2)^2 to calculate the pipe's cross-sectional area (A). Here, π represents the mathematical constant pi (approximately 3.14). 3. Measure the pressure drop (∆P) across the steel pipe. This refers to the difference in pressure between the inlet and outlet of the pipe. 4. Measure the fluid flow rate (Q) through the pipe. This can be achieved by using flow meters or by determining the time it takes for a known volume of fluid to traverse the pipe. 5. Utilize the formula V = Q / A to calculate the velocity (V) of the fluid flowing through the pipe. In this equation, Q represents the fluid flow rate and A denotes the cross-sectional area of the pipe. 6. Employ the formula Cd = Q / (A * √(2 * ∆P / ρ)) to calculate the pipe flow rate coefficient (Cd). In this formula, ρ represents the fluid density. The equation is derived from Bernoulli's equation and incorporates the pressure drop, fluid flow rate, and fluid density. It is important to note that the pipe flow rate coefficient for steel pipes can vary depending on factors such as pipe roughness, fluid viscosity, and Reynolds number. Therefore, it is advisable to consult relevant engineering standards, such as the Darcy-Weisbach equation or the Hazen-Williams equation, to obtain more accurate values for specific pipe configurations and fluid properties.
- Q: How do steel pipes handle expansion and contraction?
- Steel pipes handle expansion and contraction by allowing the material to expand and contract freely due to their inherent flexibility and elasticity. This prevents the pipes from experiencing excessive stress or damage, ensuring their durability and structural integrity.
- Q: How do you repair a damaged steel pipe?
- To repair a damaged steel pipe, you can follow a few steps. First, identify the extent of the damage, such as cracks or holes. Next, clean the damaged area using a wire brush or sandpaper to remove any rust, debris, or old paint. Then, apply a suitable epoxy or sealing compound to seal the crack or hole. For larger damages, welding or brazing may be necessary. Finally, ensure the repaired area is dry and properly cured before testing the pipe for leaks or further issues.
- Q: What are the factors affecting the price of steel pipes?
- The price of steel pipes can be influenced by various factors. These factors encompass: 1. Raw material expenses: The cost of raw materials like iron ore and coal significantly influences the price of steel pipes. Fluctuations in commodity prices can impact the overall production cost and subsequently affect the selling price. 2. Supply and demand dynamics: The price of steel pipes is determined by the interplay of supply and demand. When there is high demand and limited supply, prices tend to rise. Conversely, an oversupply and low demand can lead to price decreases. 3. Production and manufacturing costs: The direct impact of production and manufacturing expenses on steel pipe prices cannot be overlooked. Costs related to labor, energy, transportation, and equipment maintenance all contribute to the overall production cost and, consequently, the selling price. 4. Market competition: The level of competition within the steel pipe industry also influences prices. Increased competition among manufacturers and suppliers can result in more competitive pricing. Conversely, fewer competitors may lead to higher prices due to limited options. 5. Government policies and regulations: Government policies and regulations exert a significant influence on steel pipe prices. Import tariffs, trade restrictions, and environmental regulations can all affect production costs and subsequently impact prices. 6. Currency exchange rates: Currency exchange rates can also sway steel pipe prices. Fluctuations in exchange rates between countries can impact the cost of importing or exporting steel pipes, which in turn affects their selling price. 7. Global economic conditions: The overall state of the global economy can have repercussions on steel pipe prices. During periods of economic growth, demand for steel pipes may increase, leading to higher prices. Conversely, economic downturns can result in decreased demand and subsequently lower prices. It is vital to acknowledge that these factors can interact and fluctuate over time, making the pricing of steel pipes a complex and ever-changing process.
- Q: 45 and 316 which steel tubes are of high hardness?
- This depends on the heat treatment state, if 45 steel, 314 stainless steel without heat treatment, 316 stainless steel hardness, if the heat treatment, that is 45 steel hardness.
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ERW steel pipe with high quality and cerficate
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 watt
- Supply Capability:
- 8000 watt/month
OKorder Service Pledge
OKorder Financial Service
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