4.5in Premium Casing: 5.21-15.88mm WT, J55/K55
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 m.t.
- Supply Capability:
- 1000 m.t./month
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Specification
Standard:
ASTM,API,GB
Technique:
Hot Rolled,Cold Rolled
Shape:
Round,LTZ
Surface Treatment:
Galvanized,Copper Coated
Steel Grade:
Q195
Certification:
ISO,API
Thickness:
5.21-16.13mm
Length:
R1-R3
Outer Diameter:
4 1/2 -20inch
Net Weight:
14.14-197.93kg/m
Petroleum Casing Product Information
1. Product Overview
J55 Steel Deep Well Casing, P110 High-Grade Drilling Casing
petroleum casing is strictly manufactured in compliance with API 5CT standards, covering mainstream steel grades such as J55, N80, and P110. It is suitable for wellbore reinforcement and formation isolation in onshore oilfields, offshore platforms, and complex geological environments, ensuring lifecycle safety of oil and gas wells.
2. Technical Specifications
Size Range:
Outer diameter 114.3 mm (4.5") to 508 mm (20"), wall thickness 6.2-25.4 mm, tolerances conform to API 5CT standards (outer diameter ±0.5%, wall thickness ±10%).Mechanical Properties:
J55 Grade: Yield strength ≥379 MPa, tensile strength ≥517 MPa;
P110 Grade: Yield strength ≥758 MPa, tensile strength ≥965 MPa;
Collapse resistance: N80 Grade ≥80 MPa, P110 Grade ≥138 MPa (tested per ASTM A370).
Thread Performance:
API round thread (BTC) sealing pressure ≥20 MPa;
Premium connections (e.g., BGT2) helium leakage rate ≤1×10⁻⁶ cm³/s (tested per ISO 13679 CAL IV).
3. Chemical Composition (Example: L80 Grade)
| Content | 0.25% | 1.20% | 0.45% | 0.50% | 0.25% | 0.020% | 0.010% |
| Note: Cr-Mo alloy design enhances H₂S corrosion resistance (H₂S partial pressure ≤0.3 kPa). |
4. Application Scenarios
High-Temperature & High-Pressure Wells:
L80-13Cr material withstands 180°C and CO₂ partial pressure ≤1 MPa (per NORSOK M-001).Shale Gas Horizontal Wells:
TP140TT high-collapse casing with internal pressure resistance ≥105 MPa, compatible with multi-stage fracturing.Deepwater Offshore Wells:
9-5/8" casing passes 30 MPa external pressure test, suitable for 3,000-meter water depth.
5. Production Process
Material Smelting:
Electric Arc Furnace (EAF) + LF refining, sulfur/phosphorus ≤0.015%;
Continuous casting billet Φ180-400 mm, central segregation ≤Class C 1.0.Hot Rolling:
Three-roll retained mandrel mill, wall thickness uniformity ≤5%;
Online spray cooling, final rolling temperature 900±20°C.Heat Treatment:
Quenching (920°C water cooling) + Tempering (620°C air cooling), hardness 22-32 HRC;
Sour-service pipes use HWQ process, grain size ≥ASTM 7.Quality Inspection:
100% ultrasonic testing (UT) for longitudinal defects (sensitivity Φ1.6 mm flat-bottom hole);
Full-length hydrostatic test (50-100 MPa, holding ≥10 seconds);
Drift test with API drift mandrel (100% pass rate).
6. Case Studies
Middle East Oilfield Project:
Delivered 13-3/8" P110 casing for 4,500-meter well depth, collapse resistance 120 MPa.
7" TP140TT casing supports 30-stage fracturing, boosting single-well output by 25%.
Key Features
J55/P110 Casing: High-strength, corrosion-resistant, compliant with API 5CT.
TP140TT Grade: Optimized for shale gas fracturing with extreme pressure resistance.
Deepwater Compliance: Certified for 3,000-meter offshore operations.
- Q: How do steel pipes compare to other materials, such as PVC or copper?
- Steel pipes have several advantages over other materials such as PVC or copper. Firstly, steel pipes are incredibly durable and strong, making them suitable for heavy-duty applications and high-pressure environments. Additionally, steel pipes have a longer lifespan compared to PVC or copper, as they are less prone to cracking, corrosion, or degradation. Steel pipes also provide better fire resistance and are more resistant to extreme temperatures. However, steel pipes can be more expensive and require professional installation due to their weight and rigidity. PVC pipes, on the other hand, are lightweight, affordable, and easy to install, but they may not be as durable or suitable for certain applications. Copper pipes offer excellent corrosion resistance and are commonly used for water supply systems, but they can be more expensive and require skilled labor to install. Ultimately, the choice between steel, PVC, or copper pipes depends on the specific requirements of the project and the desired balance of cost, durability, and performance.
- Q: What is the role of steel pipes in the construction of bridges and tunnels?
- The construction of bridges and tunnels heavily relies on steel pipes, which are widely used for various purposes due to their strength, durability, and versatility. When it comes to bridge construction, steel pipes are commonly utilized to fabricate the structural framework of the bridge. They act as the primary load-bearing members, providing support and stability to the entire structure. Steel pipes are particularly favored in bridge construction because of their high tensile strength, enabling them to withstand heavy loads, including the weight of vehicles and the dynamic forces generated by traffic. Steel pipes are also essential in the construction of bridge piers and abutments, which serve as the foundation and support for the bridge structure. To create sturdy foundations that can withstand the forces exerted by the bridge's weight and external factors such as wind, water currents, and seismic activity, steel pipes are often driven deep into the ground. Similarly, in tunnel construction, steel pipes play a critical role. They are extensively used for tunnel lining, which involves the installation of structural elements along the tunnel walls and roof to ensure stability and prevent soil or rock collapse. Steel pipes are commonly used as reinforcement elements, ensuring the structural integrity of the tunnel and protecting it from external pressures. Furthermore, steel pipes are utilized for underground utility systems in both bridges and tunnels. They act as conduits for various utilities, including water supply, electrical cables, gas pipelines, and communication lines. Steel pipes are ideal for these applications because of their corrosion resistance, ability to withstand high pressures, and long lifespan. In conclusion, steel pipes are crucial in the construction of bridges and tunnels as they provide strength, stability, and durability to these structures. They play a vital role in ensuring the safety and functionality of these critical infrastructure projects, allowing for efficient transportation and the seamless provision of utilities.
- Q: What are the advantages of using steel pipes in the mining industry?
- There are several advantages of using steel pipes in the mining industry. Firstly, steel pipes are extremely durable and can withstand harsh environmental conditions and heavy loads, making them ideal for underground mining operations. Secondly, steel pipes have high tensile strength, which allows for the transportation of large volumes of materials, such as ore or waste, over long distances. Additionally, steel pipes are resistant to corrosion and erosion, ensuring a longer lifespan and reducing maintenance costs. Lastly, steel pipes are relatively easy to install and can be welded together, providing flexibility in designing and constructing mining infrastructure.
- Q: What is the bending strength of steel pipes?
- The bending strength of steel pipes refers to the ability of a steel pipe to withstand bending forces without breaking or permanently deforming. The bending strength of steel pipes can vary depending on various factors such as the type and grade of steel, the diameter and thickness of the pipe, and the manufacturing process. Steel pipes are known for their high strength and durability, making them suitable for a wide range of applications. The bending strength of steel pipes is typically expressed in terms of the maximum bending moment or the maximum stress that the pipe can withstand without failure. To determine the bending strength of a steel pipe, engineers and manufacturers use various testing methods such as three-point or four-point bending tests. These tests apply a known force or moment to the pipe and measure its deflection or stress response. The bending strength of steel pipes can also be influenced by the pipe's mechanical properties, including yield strength, tensile strength, and elongation. These properties determine the overall strength and ductility of the steel, which play a vital role in its bending strength. It is important to note that the bending strength can vary depending on the specific application and load conditions. For example, pipes used in structural or load-bearing applications may require higher bending strength compared to pipes used for plumbing or conveyance purposes. In summary, the bending strength of steel pipes is determined by various factors such as the type and grade of steel, diameter and thickness of the pipe, and the manufacturing process. Testing methods and mechanical properties are used to evaluate the bending strength of steel pipes, ensuring their suitability for different applications and load conditions.
- Q: How are steel pipes used in the telecommunications infrastructure industry?
- Steel pipes are used in the telecommunications infrastructure industry to provide a strong and durable framework for the installation of fiber optic cables, conduits, and other communication equipment. They are used for underground cable routing, overhead cable support, and the construction of telecommunication towers, ensuring reliable and efficient communication networks.
- Q: How are steel pipes used in the manufacturing of wind turbines?
- The manufacturing process of wind turbines relies heavily on steel pipes, which are essential components for constructing both the tower and the foundation. The tower, a tall and sturdy structure, is typically made by welding together large steel pipes. These pipes are responsible for providing the necessary strength and stability to bear the weight of the entire wind turbine and withstand the powerful forces generated by the rotating blades. Apart from the tower, steel pipes are also crucial in building the foundation of the wind turbine. The foundation requires a solid and stable base to ensure the turbine remains upright and secure. To achieve this, deep foundation piles made of thick-walled steel pipes are commonly used. These piles are driven deep into the ground to anchor the wind turbine and prevent it from toppling over. Furthermore, steel pipes are utilized in the transportation of the electricity generated by wind turbines. Once the wind energy is converted into electrical energy, it is transmitted through an internal electrical system to the base of the tower. From there, the electricity is often transferred through underground cables to a substation, where it is distributed into the power grid. Steel pipes are employed to protect and encase these cables, ensuring insulation and safe transmission of electricity. In summary, steel pipes play a critical role in wind turbine manufacturing by providing structural support, stability, and efficient electricity transmission. The durability and strength of steel make it an ideal material for enduring the harsh environmental conditions and immense forces associated with the operation of wind turbines.
- Q: What quota is reserved for buried DN20 steel pipe?
- If it is reserved for embedded pipe pre buried steel waterproof casing, set of waterproof casing steel production and installation is to set the quota items, if the outdoor installation of welded steel pipe buried steel casing pre quota items, if it is a reserved hole, then there is no need to set the quota items.
- Q: What are the common challenges faced during steel pipe installation?
- When installing steel pipes, there are various challenges that may arise. One of these challenges involves the need to ensure that the pipe sections are properly aligned and fit together correctly. Welding or threading is typically used to join steel pipes, and if the alignment is not precise, it can result in leaks or weak points in the pipeline. To overcome this challenge, it is necessary to use careful measurements and alignment techniques to ensure a secure and tight fit between the pipe sections. Another challenge that arises is dealing with corrosion and rust. Steel pipes are prone to corrosion, especially when exposed to moisture or corrosive substances. This can lead to the deterioration of the pipes over time, compromising their structural integrity and increasing the risk of leaks. To address this challenge, it is possible to apply protective coatings or linings to the steel pipes to prevent corrosion and extend their lifespan. Additionally, the weight and size of steel pipes can pose a challenge during installation. Steel pipes are heavy, and it can be physically demanding to maneuver and position them. Moreover, the large diameter of some steel pipes makes it difficult to transport and handle them in tight spaces or through narrow pathways. Overcoming this challenge often requires the use of heavy machinery, such as cranes or forklifts, to lift and position the pipes correctly. Lastly, environmental factors can also present challenges during steel pipe installation. Extreme temperatures, harsh weather conditions, or unstable soil conditions can impact the installation process. For example, freezing temperatures can make it challenging to weld the pipes, while unstable soil may require additional reinforcement or stabilization measures to ensure the longevity of the pipeline. In conclusion, the challenges commonly faced during steel pipe installation include the need for proper alignment, the issue of corrosion and rust, the handling of the weight and size of the pipes, and the consideration of environmental factors. Overcoming these challenges requires careful planning, attention to detail, and the utilization of appropriate techniques and equipment.
- Q: Are steel pipes suitable for high-pressure applications?
- Indeed, steel pipes prove to be an appropriate choice when it comes to high-pressure applications. Renowned for their robustness and endurance, steel pipes are exceptionally well-suited for managing high-pressure scenarios. They possess the remarkable ability to endure the intense internal pressure exerted by fluids or gases without buckling or rupturing. Thanks to their high tensile strength, steel pipes effectively combat the forces that arise in high-pressure environments, thereby ensuring the security and dependability of the piping system. Furthermore, steel pipes can be manufactured with thicker walls, further bolstering their capacity to withstand elevated pressures. Consequently, steel pipes find extensive utilization in various industries, such as oil and gas, petrochemical, power generation, and water distribution, where high-pressure applications are customary.
- Q: What is the difference between steel pipes and ductile iron pipes?
- Steel pipes and ductile iron pipes are both commonly used for conveying fluids and gases, but they have notable differences. The main distinction lies in their composition and properties. Steel pipes are made of an alloy of iron and carbon, providing them with high strength and durability. On the other hand, ductile iron pipes are composed of iron, carbon, and small amounts of other elements such as silicon and manganese, which make them more flexible and resistant to bending. Ductile iron pipes also have superior corrosion resistance compared to steel pipes. Overall, steel pipes are preferred for applications requiring higher strength and pressure resistance, while ductile iron pipes are often chosen for their flexibility and corrosion resistance.
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4.5in Premium Casing: 5.21-15.88mm WT, J55/K55
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 m.t.
- Supply Capability:
- 1000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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