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About us
Tianjin lefin Industrial
TIANJIN LEFIN STEEL GROUP containing Tianjin lefin Industrial Co.,Ltd. 、Tianjin lefin steel import & export Co.,Ltd and Tianjin Shengqifeng International Trading Co., Ltd. -
Products
Steel Pipe Processing
Our main products include 1/2inch to 16 inch ERW PIPE/GI PIPE which has been produced according to BS1387/ASTM A53/EN10219/EN10255/EN10217 Standard -
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Service Capability
Guarantee Quality
Our steel pipes are suitable for oil, natural gas, shipbuilding, chemical industry, water conservancy, electrical, steel structure, construction and other related fields.
- Details
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Oil Casing Pipe N80, which includes N80-1 and N80Q types, is a critical component in the oil and gas industry, specifically designed for use in well drilling operations. These pipes provide structural support and serve as conduits for the extraction of oil and gas.
Specifications
● Outside Diameter: The outside diameter of N80 casing pipes ranges from 6.0mm to 219.0mm.
● Wall Thickness: The wall thickness varies from 1.0mm to 30mm.
● Length: The pipes are available in different lengths: R1 (4.88-7.62m), R2 (7.62-10.36m), and R3 (10.36-14.63m).
● Thread Type: N80 casing pipes can have short round thread, long round thread, or buttress thread.Mechanical Properties
The mechanical properties of N80 casing pipes are designed to ensure durability and reliability under moderate operational conditions.
● Tensile Strength: 689-896 MPa (100-130 ksi)
● Yield Strength: Minimum 552 MPa (80 ksi)
● Elongation: Minimum 15% in 2 inche
Differences Between N80-1 And N80Q
The primary distinction between API 5CT N80-1 and N80Q lies in their impact properties and delivery conditions. Both N80-1 and N80Q casing pipes exhibit the same tensile strength. However, N80-1 is delivered in a normalized condition, while N80Q undergoes quenching and tempering, which results in higher strength and hardness, making it suitable for more demanding applications.
N80-1 is typically normalized and tempered to improve its mechanical properties, while N80Q is quenched and tempered. This difference in heat treatment results in different microstructures and mechanical properties for the two grades. N80Q has a higher strength and hardness compared to N80-1, which makes it more suitable for high-pressure and high-temperature applications.Chemical Composition
N80 casing pipes are made from carbon steel with a moderate level of alloying elements to provide a balance of strength and toughness. The typical chemical composition includes:
● Carbon (C): 0.28-0.40%
● Manganese (Mn): 1.25-1.60%
● Phosphorus (P): 0.030 max%
● Sulfur (S): 0.030 max%
● Silicon (Si): 0.20-0.35%Applications
● Structural Support: N80 pipes provide essential structural support in oil and gas wells, ensuring the integrity of the wellbore.
● Well Extraction: They facilitate the extraction process by serving as a conduit for oil and gas to flow from the reservoir to the surface.
● Moderate Environments: Suitable for wells with moderate depths and pressures, where extreme conditions like high temperatures or sour gas are not present.
● Versatility in Well Types: N80 pipes are versatile, used in both horizontal and vertical wells, providing flexibility in drilling operations.
● Zone Isolation: They help in isolating different zones within a well, preventing fluid cross-contamination and maintaining well productivity.
● Offshore Applications: N80 pipes are also used in offshore drilling, offering reliable well protection in marine environments.
● High-Pressure Conditions: N80Q, with its enhanced properties, is used in high-pressure and high-temperature conditions where greater strength is required.
In summary, API 5CT N80 casing pipes, including their N80-1 and N80Q grades, are vital in the oil and gas industry for their strength, corrosion resistance, and adaptability to various well conditions. These pipes are manufactured under stringent quality control measures, ensuring long-lasting durability and dependable well integrity. The selection between N80-1 and N80Q hinges on the specific demands of the well, with N80Q providing enhanced strength and greater resistance to sulfide stress cracking.
Oil Casing Pipe Grade N80
Subcategory
Keyword
- Details
-
Oil Casing Pipe N80, which includes N80-1 and N80Q types, is a critical component in the oil and gas industry, specifically designed for use in well drilling operations. These pipes provide structural support and serve as conduits for the extraction of oil and gas.
Specifications
● Outside Diameter: The outside diameter of N80 casing pipes ranges from 6.0mm to 219.0mm.
● Wall Thickness: The wall thickness varies from 1.0mm to 30mm.
● Length: The pipes are available in different lengths: R1 (4.88-7.62m), R2 (7.62-10.36m), and R3 (10.36-14.63m).
● Thread Type: N80 casing pipes can have short round thread, long round thread, or buttress thread.Mechanical Properties
The mechanical properties of N80 casing pipes are designed to ensure durability and reliability under moderate operational conditions.
● Tensile Strength: 689-896 MPa (100-130 ksi)
● Yield Strength: Minimum 552 MPa (80 ksi)
● Elongation: Minimum 15% in 2 inche
Differences Between N80-1 And N80Q
The primary distinction between API 5CT N80-1 and N80Q lies in their impact properties and delivery conditions. Both N80-1 and N80Q casing pipes exhibit the same tensile strength. However, N80-1 is delivered in a normalized condition, while N80Q undergoes quenching and tempering, which results in higher strength and hardness, making it suitable for more demanding applications.
N80-1 is typically normalized and tempered to improve its mechanical properties, while N80Q is quenched and tempered. This difference in heat treatment results in different microstructures and mechanical properties for the two grades. N80Q has a higher strength and hardness compared to N80-1, which makes it more suitable for high-pressure and high-temperature applications.Chemical Composition
N80 casing pipes are made from carbon steel with a moderate level of alloying elements to provide a balance of strength and toughness. The typical chemical composition includes:
● Carbon (C): 0.28-0.40%
● Manganese (Mn): 1.25-1.60%
● Phosphorus (P): 0.030 max%
● Sulfur (S): 0.030 max%
● Silicon (Si): 0.20-0.35%Applications
● Structural Support: N80 pipes provide essential structural support in oil and gas wells, ensuring the integrity of the wellbore.
● Well Extraction: They facilitate the extraction process by serving as a conduit for oil and gas to flow from the reservoir to the surface.
● Moderate Environments: Suitable for wells with moderate depths and pressures, where extreme conditions like high temperatures or sour gas are not present.
● Versatility in Well Types: N80 pipes are versatile, used in both horizontal and vertical wells, providing flexibility in drilling operations.
● Zone Isolation: They help in isolating different zones within a well, preventing fluid cross-contamination and maintaining well productivity.
● Offshore Applications: N80 pipes are also used in offshore drilling, offering reliable well protection in marine environments.
● High-Pressure Conditions: N80Q, with its enhanced properties, is used in high-pressure and high-temperature conditions where greater strength is required.
In summary, API 5CT N80 casing pipes, including their N80-1 and N80Q grades, are vital in the oil and gas industry for their strength, corrosion resistance, and adaptability to various well conditions. These pipes are manufactured under stringent quality control measures, ensuring long-lasting durability and dependable well integrity. The selection between N80-1 and N80Q hinges on the specific demands of the well, with N80Q providing enhanced strength and greater resistance to sulfide stress cracking.
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Address: Hengtai Road,Daqiuzhuang Town,Jinghai County,Tianjin,China
Mob: +8615122229899(whatspp)
Phone: +86 22 58171905
Fax: +86 22 58171902
E-mail:info@lefinsteel.com
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