Seamless Steel Pipe API with Q235 and GR.B
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 35 m.t.
- Supply Capability:
- 8000 m.t./month
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1、Structure of Seamless Steel Pipe API with Q235 and GR.B
Seamless steel pipe has a hollow section, a large number of pipes used for conveying fluid, such as oil, natural gas, gas, water and some solid materials, etc.. Compared to such as steel pipe and solid bar of steel, in flexural torsional strength are the same, the weight is light, is a kind of economic section steel, widely used in the manufacture of structural parts and mechanical parts, such as drill pipe, automobile transmission shaft, self frame as well as the construction of the steel scaffolding steel pipe manufacturing annular parts, can improve the material utilization rate, simplify the manufacturing process, material saving and working hours, has been widely used in steel pipe manufacturing.
2、Main Features of Seamless Steel Pipe API with Q235 and GR.B
• High manufacturing accuracy
• High strength
• Strong heat dissipation ability
3、Supply Seamless Steel Pipe API with Q235 and GR.B：
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 Supply Seamless Steel Pipe API Certificate
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、 Seamless Steel Pipe API with Q235 and GR.B Images：
- Q: What is the difference between steel pipes and copper-nickel pipes?
- The main difference between steel pipes and copper-nickel pipes lies in their composition and characteristics. Steel pipes are primarily made of iron and carbon, whereas copper-nickel pipes are made of a combination of copper and nickel with trace amounts of other elements. Steel pipes are known for their strength and durability, making them suitable for a wide range of applications, particularly in industries where high pressure and temperature conditions are present. Steel pipes are also relatively cost-effective and have good corrosion resistance, especially when coated or galvanized. On the other hand, copper-nickel pipes are highly resistant to corrosion and have excellent heat transfer properties. They are commonly used in marine environments due to their resistance to saltwater corrosion. Copper-nickel pipes also exhibit antimicrobial properties, making them suitable for applications in healthcare and food processing industries. However, copper-nickel pipes are generally more expensive than steel pipes. In summary, steel pipes are valued for their strength and affordability, while copper-nickel pipes offer superior corrosion resistance and heat transfer properties, but at a higher cost. The choice between the two depends on the specific requirements of the application.
- Q: Are steel pipes resistant to corrosion?
- Yes, steel pipes are resistant to corrosion due to the protective layer formed by the oxide film on their surface. However, their resistance can vary depending on the specific type of steel and the conditions they are exposed to.
- Q: How are steel pipes coated for insulation purposes?
- Various methods and materials are commonly used to coat steel pipes for insulation. One method involves applying a thermal insulation coating, typically made of a high-performance polymer or epoxy-based material, to the surface of the pipe. To ensure proper adhesion of the coating, the steel pipe is first thoroughly cleaned to remove dirt, grease, and rust. This cleaning process, known as abrasive blasting, involves propelling small particles at high speed to remove contaminants and create a clean, rough surface. Once the surface is prepared, the thermal insulation coating is applied using techniques such as spraying, brushing, or rolling. Multiple layers of the coating are carefully applied to ensure adequate coverage and thickness. This forms a protective barrier between the steel pipe and the external environment, preventing heat transfer and reducing energy loss. In addition to thermal insulation coatings, steel pipes can also be coated with materials like polyurethane foam or mineral wool. These materials offer excellent thermal insulation properties and are often used in applications where high-temperature resistance is necessary. Overall, the insulation of steel pipes involves a combination of surface preparation and the application of specialized coatings. These coatings serve to minimize heat loss, improve energy efficiency, and protect against corrosion and other environmental factors.
- Q: How are steel pipes affected by international trade policies?
- Steel pipes can be significantly impacted by international trade policies. These policies can include tariffs, quotas, and other trade barriers that affect the import and export of steel pipes. Changes in trade policies can lead to fluctuations in prices, supply, and demand for steel pipes. Additionally, trade policies can also influence the competitiveness of domestic steel pipe producers in the global market.
- Q: Can steel pipes be used for conveying hazardous chemicals?
- Certainly, hazardous chemicals can indeed be conveyed through the use of steel pipes. Renowned for their exceptional strength and durability, steel pipes are ideally suited for the handling of various substances, including those that are hazardous. Their ability to withstand both high pressure and temperature ensures the secure transportation of these chemicals. Furthermore, steel pipes possess outstanding resistance to corrosion, a critical factor when dealing with potentially dangerous and corrosive materials. In addition, the ease with which steel pipes can be welded and connected allows for the establishment of a dependable and impervious transport system. Nevertheless, it is imperative to carefully consider the specific requirements of the chemicals being transported and diligently ensure that the steel pipes are appropriately designed, coated, and maintained, thereby averting any potential risks or reactions that may arise with the hazardous substances.
- Q: Can steel pipes be used for water supply lines?
- Indeed, water supply lines can utilize steel pipes. In the realm of industrial and commercial settings, steel pipes find frequent employment in the conveyance of water and other fluids. Their remarkable endurance and robustness render them highly suitable for systems operating under high pressure. Moreover, steel pipes exhibit exceptional resistance to corrosion, a crucial attribute for upholding water supply quality and safety. Nevertheless, it remains imperative to guarantee that steel pipes employed for water supply lines are adequately coated or lined to avert any potential water contamination.
- Q: What is the maximum allowable pressure for steel pipes?
- Various factors, such as the type of steel used, the pipe's diameter and thickness, and specific industry requirements, determine the maximum pressure allowed for steel pipes. The American Society of Mechanical Engineers (ASME) offers guidelines and standards for pressure vessel and piping design, which include determining the maximum allowable pressure. For power piping and process piping, ASME B31.1 and B31.3 are commonly used codes, respectively. These codes establish design criteria for different materials, including steel, and provide formulas and charts to calculate the maximum allowable pressure for different pipe sizes and wall thicknesses. The maximum allowable pressure is typically determined based on the pipe's ability to withstand internal pressure without experiencing permanent deformation or failure. It is important to consider other factors, such as temperature, corrosion, and the presence of external loads or stresses, as they may also impact the maximum allowable pressure for steel pipes. Therefore, it is essential to refer to the relevant codes, standards, and engineering calculations specific to the application to ensure the safe and reliable operation of steel pipes under the given conditions.
- Q: How are steel pipes protected against corrosion?
- Steel pipes are protected against corrosion through various methods such as coating them with corrosion-resistant materials like epoxy or zinc, cathodic protection using sacrificial anodes or impressed current systems, and maintaining a protective layer on the pipe's surface through regular maintenance and inspection.
- Q: Can steel pipes be painted?
- Yes, steel pipes can be painted. Painting steel pipes provides protection against corrosion, enhances their aesthetic appearance, and can help them blend with the surrounding environment. Prior to painting, the pipes need to be cleaned, primed, and then coated with a suitable paint designed for metal surfaces.
- Q: How are steel pipes used in the manufacturing of agricultural machinery and equipment?
- Steel pipes are commonly used in the manufacturing of agricultural machinery and equipment due to their strength, durability, and versatility. These pipes are used for various purposes such as forming the structural framework, creating hydraulic systems, and providing conduits for fluid and air transportation. Whether it's for building tractor chassis, constructing irrigation systems, or manufacturing grain storage equipment, steel pipes play a crucial role in ensuring the reliability and efficiency of agricultural machinery.
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Seamless Steel Pipe API with Q235 and GR.B
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 35 m.t.
- Supply Capability:
- 8000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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