Casing Pipe of Grade L80 with API Standard

Casing Pipe of Grade L80 with API Standard System 1

Casing Pipe of Grade L80 with API Standard

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Loading Port:: Qingdao

Payment Terms:: TT OR LC

Min Order Qty:: 20 m.t.

Supply Capability:: 2000 m.t./month

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1. Structure of Casing Pipe of Grade L80 Description

API 5CT Steel Pipe, L80 Oil/Petroleum Casing Pipe, OCTG
1) Grade: J55,K55,L80,N80Q,C90,T95,P110
2) Size: 4 1/2", 5", 5 1/2", 6 5/8", 7", 7 5/8", 9 5/8", 10 3/4", 13 3/8", 16", 18 5/8", 20"
3) Wall thickness: 6.35 - 12.70 mm
4) Thread type: STC, LTC, BTC
5) Length: R1,R2,R3
6) All our casings accord with API 5CT standard.

2. Main Features of Casing Pipe of Grade L80

1) Advanced test for quality

2) MTC, COC provided

3) Supervision is welcome

3. Casing Pipe of Grade L80 Images

Casing Pipe of Grade L80 with API Standard

4. Casing Pipe of Grade L80 Specification

Size Destination	Weight Destination	Outside Diameter		Wall Thickness		Type of End Finish
		Outside Diameter		Wall Thickness		Grade
		in	mm	in	mm	J55 K55	L80	N80	C90 T95	P110
4 1/2	9.50	4.500	114.3	0.205	5.21	PS	-	-	-	-
	10.50			0.224	5.69	PSB	-	-	-	-
	11.60			0.250	6.35	PSLB	PLB	PLB	PLB	PLB
	13.50			0.290	7.37	-	PLB	PLB	PLB	PLB
	15.10			0.337	9.56	-	-	-	-	PLB
5	11.50	5.00	127.00	0.220	5.59	PS	-	-	-	-
	13.00			0.253	6.43	PSLB	-	-	-	-
	15.00			0.296	7.52	PSLB	PLB	PLB	PLBE	PLB
	18.00			0.362	9.19	-	PLB	PLB	PLBE	PLB
	21.40			0.437	11.10	-	PLB	PLB	PLB	PLB
	23.20			0.478	12.14	-			PLB
	24.10			0.500	12.70	-			PLB
5 1/2	14.00	5.500	139.7	0.244	6.20	PS	-	-	-	-
	15.50			0.275	6.98	PSLB	-	-	-	-
	17.00			0.304	7.72	PSLB	PLB	PLB	PLBE	PLB
	20.00			0.361	9.17	-	PLB	PLB	PLBE	PLB
	23.00			0.415	10.54	-	PLB	PLB	PLBE	PLB
6 5/8	20.00	6.625	168.28	0.288	7.32	PSLB	-	-	-	-
	24.00			0.352	8.94	PSLB	PLB	PLB	PLBE	PLB
	28.00			0.417	10.59	-	PLB	PLB	PLBE	PLB
	32.00			0.475	12.06	-	PLB	PLB	PLBE	PLB
7	17.00	7.00	177.80	0.231	5.87	-	-	-	-	-
	20.00			0.272	6.91	PS	-	-	-	-
	23.00			0.317	8.05	PSLB	PLB	PLB	PLBE	-
	26.00			0.362	9.19	PSLB	PLB	PLB	PLBE	PLB
	29.00			0.408	10.36	-	PLB	PLB	PLBE	PLB
	32.00			0.453	11.51	-	PLB	PLB	PLBE	PLB
	35.00			0.498	12.65	-	PLB	PLB	PLBE	PLB
	38.00			0.540	13.72	-	PLB	PLB	PLBE	PLB
7 5/8	24.00	7.625	193.68	0.300	7.62	-	-	-	-	-
	26.40			0.328	8.33	PSLB	PLB	PLB	PLBE	PLB
	29.70			0.375	9.52	-	PLB	PLB	PLBE	PLB
	33.70			0.430	10.92	-	PLB	PLB	PLBE	PLB
	39.00			0.500	12.70	-	PLB	PLB	PLBE	PLB
	42.80			0.562	14.27	-	PLB	PLB	PLB	PLB
	45.30			0.595	15.11	-	PLB	PLB	PLB	PLB
	47.10			0.625	15.88	-	PLB	PLB	PLB	PLB
8 5/8	24.00	8.625	219.08	0.264	6.71	PS	-	-	-	-
	28.00			0.304	7.72	-	-	-	-	-
	32.00			0.352	8.94	PSLB	-	-	-	-
	36.00			0.400	10.16	PSLB	PLB	PLB	PLBE	PLB
	40.00			0.450	11.43	-	PLB	PLB	PLBE	PLB
	44.00			0.500	12.70	-	PLB	PLB	PLBE	PLB
	49.00			0.557	14.15	-	PLB	PLB	PLBE	PLB
9 5/8	32.30	9.625	244.48	0.312	7.92	-	-	-	-	-
	36.00			0.352	8.94	PSLB	-	-	-	-
	40.00			0.395	10.03	PSLB	PLB	PLB	PLBE	-
	43.50			0.435	11.05	-	PLB	PLB	PLBE	PLB
	47.00			0.472	11.99	-	PLB	PLB	PLBE	PLB
	53.50			0.545	13.84	-	PLB	PLB	PLBE	PLB
	58.40			0.595	15.11	-	PLB	PLB	PLB	PLB
10 3/4	32.75	10.75	273.05	0.279	7.09	-	-	-	-	-
	40.50			0.350	8.89	PSB	-	-	-	-
	15.50			0.400	10.16	PSB	-	-	-	-
	51.00			0.450	11.43	PSB	PSB	PSB	PSBE	PSB
	55.50			0.495	12.57	-	PSB	PSB	PSBE	PSB
	60.70			0.545	13.84	-	-	-	PSBE	PSB
	65.70			0.595	15.11	-	-	-	PSB	PSB
13 3/8	48.00	13.375	339.73	0.330	8.38	-	-	-	-	-
	54.50			0.380	9.65	PSB	-	-	-	-
	61.00			0.430	10.92	PSB	-	-	-	-
	68.00			0.480	12.19	PSB	PSB	PSB	PSB	PSB
	72.00			0.514	13.06	-	PSB	PSB	PSB	PSB
16	65.00	16	406.40	0.375	9.53	-	-	-	-	-
	75.00			0.438	11.13	PSB	-	-	-	-
	84.00			0.495	12.57	PSB	-	-	-	-
	109.00			0.656	16.66	P	P	P	-	P
18 5/8	87.50	18.625	473.08	0.435	11.05	PSB	-	-	-	-
20	94.00	20	508.00	0.438	11.13	PSLB	-	-	-	-
	106.50			0.500	12.70	PSLB	-	-	-	-
	133.00			0.635	16.13	PSLB	-	-	-	-

5. FAQ of Casing Pipe of Grade L80

We have organized several common questions for our clients，may help you sincerely：

①How about your company？

One of the leading manufacturers and suppliers specializing in steel pipe products in China, mainly offering four series steel pipes including welded steel pipe (ERW, SSAW, LSAW and square and rectangle pipe), seamless steel pipe, hot dipped galvanized steel pipe and steel pipe with 3 layer polythene coating. We can provide customers different specification standards e.g. ASTM A53, ASTM A106, BS1387, API 5L, API 5CT, ISO3183 and etc. Our scope of supplying covers from 1/2" to 48" for the outside diameter of welded pipes, and 1/8" to 20" for the seamless pipes.

Other than steel pipes we are also capable of supplying a wide variety of pipeline accessories, steel pipe fittings; valves etc. consists of our one-stop sales. The integrated sales & service ensures customers with various demands an easier access for purchasing management.

②How to guarantee the quality of the products？

We have established the international advanced quality management system，every link from raw material to final product we have strict quality test；We resolutely put an end to unqualified products flowing into the market. At the same time, we will provide necessary follow-up service assurance.

③How long can we receive the product after purchase?

In the purchase of product within three working days, We will arrange the factory delivery as soon as possible.

Q:How are steel pipes protected against rust?: Steel pipes can be safeguarded against rust in various ways. One popular approach entails applying a protective coating to the pipes. This can be achieved through the use of a paint layer, epoxy, or a corrosion-resistant coating like zinc or galvanized coatings. These coatings act as a barrier between the steel and moisture, preventing rust formation. Another technique for shielding steel pipes from rust involves cathodic protection. This method employs sacrificial anodes, typically composed of zinc or magnesium, which are affixed to the steel pipes. These anodes corrode instead of the steel, sacrificing themselves and preventing rust on the pipes. In addition to coatings and cathodic protection, corrosion inhibitors can also be employed to protect steel pipes against rust. Corrosion inhibitors are chemicals that are added to the water or fluid flowing through the pipes. These chemicals generate a protective film on the steel's surface, inhibiting corrosion and preventing rust formation. Furthermore, regular maintenance and inspections play a vital role in safeguarding steel pipes against rust. Promptly addressing any signs of damage or wear on the protective coatings is crucial to prevent rust formation. Additionally, ensuring that the pipes are properly cleaned and dried before applying protective coatings can enhance their effectiveness. In summary, a combination of protective coatings, cathodic protection, corrosion inhibitors, and regular maintenance is utilized to effectively shield steel pipes against rust and corrosion. This approach prolongs their lifespan and maintains their structural integrity.

Q:How are steel pipes used in the construction of buildings?: Steel pipes are commonly used in the construction of buildings for various purposes such as structural support, plumbing, and electrical installations. They provide strength and durability, allowing for the construction of high-rise buildings and large-scale structures. Steel pipes are used to create the framework of the building, forming the skeleton that supports the weight and load of the structure. Additionally, steel pipes are used for plumbing systems, effectively transporting water and sewage throughout the building. They are also used for electrical installations, providing a safe and efficient conduit for wiring. Overall, steel pipes play a crucial role in the construction of buildings, ensuring stability, functionality, and longevity.

Q:What is the difference between steel pipes and aluminum pipes?: The main difference between steel pipes and aluminum pipes lies in their material composition. Steel pipes are made of an alloy primarily composed of iron and carbon, making them strong, durable, and resistant to corrosion. On the other hand, aluminum pipes are made of aluminum, which is a lightweight metal known for its excellent corrosion resistance and high thermal conductivity. Aluminum pipes are typically used in applications that require lightweight materials or where corrosion resistance is crucial, while steel pipes are commonly used in heavy-duty applications that require strength and durability.

Q:What material is RHS in the steel tube?: The CHS structure represents thin-walled round steel tubes, in which materials are referred to Taiwan CHS's steel and are used to indicate the series of anti rust paints used in metal materials.

Q:ASME seamless tube how to express, what is the form, I did not find on the ASME, thank God!: You can refer to the ASME B31.10, such as the requirements for the SA106GRB seamless steel tube outer diameter of 168.3 x 7.11, specifications can be marked as NPS6 SCH40 SMLS, the real mark should include pressure steel pipe factory name or trademark, and the material level, specifications, standards, wall number, batch number, pressure test (if any), NDE detection (if any)

Q:How do you calculate the pipe pressure drop coefficient for steel pipes?: To determine the pipe pressure drop coefficient for steel pipes, one can utilize the Darcy-Weisbach equation. This equation establishes a relationship between the pressure drop within a pipe and various factors, including the flow rate, pipe diameter, pipe length, and the properties of the fluid being conveyed. The pressure drop coefficient, also known as the friction factor or the Darcy-Weisbach friction factor, is represented by the symbol f and is dimensionless. It denotes the resistance to flow within the pipe. The value of f is contingent upon the flow regime, which can either be laminar or turbulent. In the case of laminar flow, occurring at low flow rates or with viscous fluids, the pressure drop coefficient can be determined through employment of the Hagen-Poiseuille equation. This equation relates the pressure drop to the fluid viscosity, pipe length, pipe diameter, and flow rate. However, for turbulent flow, arising at higher flow rates, the calculation of the pressure drop coefficient becomes more intricate. It is influenced by the roughness of the pipe wall, which impacts flow resistance. Typically, roughness is quantified using the relative roughness, defined as the ratio of the pipe wall roughness to the pipe diameter. To compute the pressure drop coefficient for turbulent flow in steel pipes, empirical correlations or Moody's diagram can be utilized. Moody's diagram provides a graphical depiction of the friction factor as a function of the Reynolds number and relative roughness. The Reynolds number characterizes the flow regime and is determined using fluid properties, flow rate, and pipe dimensions. By identifying the intersection of the Reynolds number and relative roughness on Moody's diagram, one can ascertain the corresponding pressure drop coefficient. It is crucial to note that the pressure drop coefficient for steel pipes may vary depending on specific pipe dimensions, surface roughness, and fluid properties. Consequently, it is advisable to refer to relevant standards or engineering sources for precise and current values of the pressure drop coefficient for steel pipes in a particular application.

Q:Are steel pipes suitable for wastewater treatment plants?: Indeed, wastewater treatment plants find steel pipes to be a suitable option. Their exceptional strength and durability make them a prevalent choice in this field. The ability to endure high pressure and resist corrosion renders them highly suitable for transporting wastewater and various fluids within the challenging environments of treatment plants. Moreover, the ease of welding and joining steel pipes allows for flexibility in designing and installing the piping system. All in all, steel pipes prove to be a dependable and economical selection for wastewater treatment plants.

Q:How do steel pipes compare to ductile iron pipes?: Steel pipes and ductile iron pipes have some similarities, such as being durable and strong materials for piping systems. However, there are a few key differences between the two. Steel pipes are typically lighter and more flexible, making them easier to handle and install. They also have a higher resistance to corrosion and can withstand higher pressure and temperature conditions. On the other hand, ductile iron pipes have a higher tensile strength and are more resistant to impact and vibration. Overall, the choice between steel and ductile iron pipes depends on specific project requirements, such as the intended application, location, and budget constraints.

Q:How are steel pipes used in the construction of solar power plants?: Steel pipes are commonly used in the construction of solar power plants to support the installation of solar panels and to carry the flow of fluids, such as water or steam, within the plant. They provide structural integrity and durability necessary to withstand the environmental conditions and weight of the solar panels. Additionally, steel pipes are used for the installation of underground transmission lines, ensuring efficient and reliable electricity distribution from the solar power plant to the grid.

Q:How are steel pipes measured and categorized?: Steel pipes are typically measured and categorized based on their outer diameter (OD) and wall thickness. The OD is measured in inches or millimeters, while the wall thickness is measured in inches or centimeters. Pipes are further categorized based on their schedule, which refers to the wall thickness and determines the pressure rating of the pipe. The schedule is denoted by a letter or number, such as Schedule 40 or Sch 80. These measurements and categorizations help in selecting the appropriate steel pipe for different applications and ensure compatibility with fittings and other components.

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