Construction Material Q235 Black Welded Tubular Steel
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1、Construction Material Q235 Black Welded Tubular Steel:
ERW steel pipe is electric resistance welding, the abbreviation for ERW for transporting oil and natural gas vapor liquid objects, can meet the requirements of high and low pressure, the transport in the world with pipe sector accounted for a pivotal position.
2、Main Features of Construction Material Q235 Black Welded Tubular Steel:
• High manufacturing accuracy
• High strength
• Good visual effect
• Reasonable price
• Small inertia resistance
• Strong heat dissipation ability
3、Construction Material Q235 Black Welded Tubular Steel 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: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 Construction Material Q235 Black Welded Tubular Steel:
①How 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.
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?
Chose happens because of quality, then price, 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.
6、 Welded Black ERW Steel Pipe Images：
- Q:How are steel pipes connected in pipeline construction?
- Steel pipes are connected in pipeline construction through various methods, such as welding, threading, and flanges. Welding involves melting the ends of two pipes together to form a strong and permanent bond. Threading involves cutting grooves into the ends of pipes, which are then screwed together using threaded fittings. Flanges are used to connect pipes by bolting them together, creating a secure and leak-proof connection. These connection methods ensure the integrity and durability of the pipeline system.
- Q:What are the different types of steel pipe joints for underwater applications?
- There are various types of steel pipe joints commonly used for underwater applications, including buttweld joints, socket weld joints, and threaded joints. These joints provide secure connections and maintain the integrity of the pipeline system in underwater environments.
- Q:What is galvanized steel pipe?
- Galvanized steel pipe is a type of steel pipe that has been coated with a layer of zinc to protect it from corrosion. This process involves immersing the steel pipe in a molten zinc bath, which creates a protective barrier on the surface of the pipe. The zinc coating helps to prolong the lifespan of the steel pipe, making it resistant to rust and other forms of corrosion. Galvanized steel pipes are commonly used in plumbing, water supply, and construction applications.
- Q:How are steel pipes protected against soil movement?
- Steel pipes are protected against soil movement through the use of various techniques such as trenching, backfilling, and proper installation of support structures. Additionally, protective measures like the use of casing pipes or concrete encasement can be employed to prevent direct contact with the soil and minimize the impact of soil movement on the steel pipes.
- Q:What are the advantages of using stainless steel pipes?
- There are several advantages of using stainless steel pipes. Firstly, stainless steel is highly resistant to corrosion, making it suitable for various applications where exposure to moisture or harsh environments is a concern. Secondly, stainless steel pipes have excellent strength and durability, allowing them to withstand high pressures and temperature fluctuations. Additionally, stainless steel is hygienic and easy to clean, making it ideal for applications in the food and beverage industry. Lastly, stainless steel pipes are aesthetically pleasing and can be easily integrated into different architectural designs.
- Q:How do steel pipes handle expansion and contraction?
- Steel pipes handle expansion and contraction through their inherent flexibility and ability to withstand temperature variations. As steel is a ductile material, it can expand and contract without significant deformation or structural damage. Additionally, the use of expansion joints or loops in piping systems allows for controlled movement and accommodates thermal expansion and contraction effectively.
- Q:How are steel pipes used in the construction of dams and water reservoirs?
- Steel pipes find widespread application in the construction of dams and water reservoirs owing to their remarkable durability, strength, and capacity to endure heavy loads and high pressure. These pipes serve multiple indispensable functions within the realm of dam and reservoir construction. A primary utility of steel pipes in these structures lies in their capacity to transport water. They are employed to convey water from its source, such as a river or stream, to the reservoir or dam. These pipes are engineered to withstand the elevated water pressure, ensuring a consistent flow of water to the reservoir. The durability of steel pipes enables them to remain intact even in the harshest environmental conditions. In addition to water conveyance, steel pipes are also utilized for drainage purposes. They are employed to establish drainage systems that help regulate the water level within the reservoir or dam. These pipes are strategically positioned to control the water flow and prevent potential flooding or overflow. Steel pipes are also integrated into the construction of spillways and outlets in dams and reservoirs. Spillways are designed to release excess water from the reservoir during heavy rainfall or when the water level exceeds predetermined thresholds. Steel pipes are employed in crafting these spillways to provide a controlled pathway for water discharge, thus averting any harm to the dam or surrounding areas. Moreover, steel pipes are employed in the construction of penstocks, which are large conduits that transport water from the reservoir to turbines in hydropower plants. The pressure generated by the water within these pipes propels the turbines, facilitating electricity generation. The robustness and durability of steel pipes are vital in ensuring the smooth and efficient operation of hydropower plants. All in all, steel pipes occupy an indispensable role in the construction of dams and water reservoirs. Their durability, strength, and ability to withstand high pressure render them an ideal choice for various aspects of these structures, including water transportation, drainage systems, spillways, and penstocks.
- Q:Can steel pipes be used for drinking water supply?
- Drinking water supply can indeed utilize steel pipes. For water distribution systems, steel pipes are widely employed owing to their robustness, longevity, and capacity to endure high pressures. Nevertheless, it is crucial to highlight that the steel employed in these pipes must be purposefully engineered and endorsed for potable water applications. This ensures the water remains uncontaminated by any detrimental substances. Furthermore, regular inspections and appropriate upkeep are imperative to avert the development of rust or corrosion, which may impact water quality.
- Q:What are the different types of steel pipe coatings?
- There are several types of steel pipe coatings, including epoxy coatings, polyethylene coatings, polyurethane coatings, and zinc coatings.
- Q:How are steel pipes protected against soil movement or settlement?
- Various methods can be employed to safeguard steel pipes against soil movement or settlement. One prevalent approach involves the utilization of protective coatings on the pipes, which act as a barrier between the steel and the soil. By preventing direct contact and reducing the chance of corrosion, these coatings offer effective protection. Epoxy, polyethylene, and zinc are among the coatings commonly employed for this purpose. Another method entails the implementation of cathodic protection. This technique involves the installation of sacrificial anodes along the pipeline. These anodes corrode instead of the steel pipes, thus shielding them from potential harm caused by soil movement or settlement. Furthermore, ensuring proper design and installation techniques is crucial for protecting steel pipes in these scenarios. Engineers must take into account factors such as soil composition, slope stability, and the likelihood of ground movement when designing the pipeline route. Additionally, employing appropriate trenching and bedding techniques guarantees adequate support and protection against settlement. Regular inspection and maintenance play a crucial role in protecting steel pipes against soil movement or settlement. By monitoring the condition of the pipeline, including the protective coatings and cathodic protection systems, potential issues can be identified promptly, allowing for timely repairs or replacements. In conclusion, a combination of protective coatings, cathodic protection, proper design and installation techniques, and regular maintenance effectively safeguards steel pipes from soil movement or settlement.
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Construction Material Q235 Black Welded Tubular Steel
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
OKorder Financial Service
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