Line Pipes API 5L

Ref Price:

Loading Port:: China Main Port

Payment Terms:: TT or L/C

Min Order Qty:: 50MT m.t.

Supply Capability:: based on order m.t./month

Inquire Now

Add to My Favorites

OKorder Service Pledge

Quality Product, Order Online Tracking, Timely Delivery

OKorder Financial Service

Credit Rating, Credit Services, Credit Purchasing

You Might Also Like

Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat Exchanger

Seamless Steel Tubes And Pipes For Automotive Axle Housing

API 5DP oilfield use drill pipe

Hollow Section Steel Tubes（Hot Rolled/Cold Rolled）

Seamless steel tube balck ASTM A 53 GRADE B

Seamless steel pipe API,GB,ASTM,ASME,DIN

Pre-galvanized Galvanized Pipe America Standard A53 Q195 100g

Galvanized Pipe America-Standard ASTM A53 100g/200g Hot Dipped Pipe

ERW Welded Steel Pipes

Application:

It is widely applied to line pipe and casing and tubing in oil transportation and casing field, and it is used in Low,high pressure liquid and gassy transportation and it is also good Structure pipe (for furniture, window, door, building , bridge, mechanical etc).

Package: bundles with anti-rust painting and with plastic caps

Standard:

API SPEC 5L, API SPEC 5CT, ASTM A53, GB/T9711.1

Steel Grade:

API SPEC 5L: B, X42, X46, X52, X56, X60, X65

API SPEC 5CT: J55, K55, N80, L80-1

ASTM A53: A, B, C

GB/T9711.1:L242、L290、L320、L360、L390、L415、L450

Standard: GB/9711. Mechanical Properties

Standard	Grade	（MPa）	（MPa）	Min(%)
Standard	Grade	Yield strength	Tensile Strength	Elongation
GB/T9711.1	L245	≥245	≥415	21
	L290	≥290	≥415	21
	L320	≥320	≥435	20
	L360	≥360	≥460	19
	L390	≥390	≥490	18
	L415	≥415	≥520	17
	L450	≥450	≥535	17
	L485	≥485	≥570	17

Chemical Composition(%)

Standard	Grade	C	Mn	P	S
Standard	Grade	Max	Max	Max	Max
GB/T9711.1	L245	0.26	0.15	0.030	0.030
	L290	0.28	1.25	0.030	0.030
	L320, L360	0.30	1.25	0.030	0.030
	L390, L415	0.26	1.35	0.030	0.030
	L450	0.26	1.40	0.030	0.030
	L485	0.23	1.60	0.025	0.030

Standard: GB/9711.2 Mechanical Properties

Standard	Grade	（MPa） Yield strength		（MPa） Tensile Strength		Min(%) Elongation

GB/T9711.2		Rt0.5Min	Rt0.5Max	RmMin	Rt0.5/Rm Max
	L245	245	440		0.80	22
	L245				0.85
	L290	290	440		0.80	21
	L290				0.85
	L360	360	510		0.85	20
	L360				0.85
	L415	415	565		0.85	18
	L415				0.85
	L450	450	570	535	0.87	18
	L485	485	605	570	0.90	18

Chemical Composition (%)

Standard	Grade	C	Mn	P	S	V	Nb	Ti	CEV
Standard	Grade	Max	Max	Max	Max	Max	Max	Max	Max
GB/T9711.2	L245NB	0.16	1.1	0.025	0.020	-	-	-	0.42
	L290NB	0.17	1.2	0.025	0.020	0.05	0.05	0.04	0.42
	L360NB	0.20	1.6	0.025	0.020	0.10	0.05	0.04	0.45
	L415NB	0.21	1.6	0.025	0.020	0.15	0.05	0.04	-
	L245NB, L290NB	0.16	1.5	0.025	0.020	0.04	0.04	-	0.4
	L360NB	0.16	1.6	0.025	0.020	0.05	0.05	0.04	0.41
	L415NB	0.16	1.6	0.025	0.020	0.08	0.05	0.06	0.42
	L450NB	0.16	1.6	0.025	0.020	0.10	0.05	0.06	0.43
	L485NB	0.16	1.7	0.025	0.020	0.10	0.06	0.06	0.43

Standard: ASTM A53 Mechanical Properties

Standard	Grade	（MPa）	（MPa）
Standard	Grade	Yield strength	Tensile Strength
ASTM A53M	A	205	330
ASTM A53M	B	240	415

Chemical Composition(%)

Standard	Grade	C	Mn	P	S	V	Ni	Cu	Cr	Mo
Standard	Grade	Max	Max	Max	Max	Max	Max	Max	Max	Max
ASTM A53M	A	0.25	0.95	0.05	0.045	0.08	0.4	0.5	0.4	0.15
ASTM A53M	B	0.30	1.20	0.05	0.045	0.08	0.4	0.5	0.4	0.15

Raw Materials Line Pipes API 5L

Production Line of Line Pipes API 5L

Q:What are the different coatings used on steel pipes?: There are several different coatings used on steel pipes, including but not limited to epoxy coatings, polyethylene coatings, zinc coatings, and galvanized coatings.

Q:Are steel pipes suitable for high-temperature applications?: Yes, steel pipes are suitable for high-temperature applications. Steel has excellent heat resistance properties, and steel pipes can withstand high temperatures without deformation or structural failure. Additionally, steel pipes can maintain their strength and durability even under extreme heat conditions, making them a reliable choice for various industrial and commercial applications involving high temperatures.

Q:What is the difference between schedule 10 and schedule 40 steel pipes?: Schedule 10 and schedule 40 steel pipes are both commonly used in various industries for different purposes. The main difference lies in their wall thickness and pressure ratings. Schedule 10 steel pipes have a thinner wall compared to schedule 40 pipes. This means that schedule 10 pipes have a smaller internal diameter and can handle less pressure compared to schedule 40 pipes. The wall thickness of schedule 10 pipes is typically 0.109 inches, while schedule 40 pipes have a wall thickness of 0.154 inches. Due to their thinner walls, schedule 10 pipes are primarily used for low-pressure applications such as domestic water supply, drainage systems, and general plumbing. They are also commonly used for lightweight structures or where weight is a concern. On the other hand, schedule 40 pipes are designed to handle higher pressure and are often used in industrial applications, including oil and gas pipelines, chemical processing plants, and high-pressure fluid systems. The thicker walls of schedule 40 pipes provide them with increased strength and durability to withstand higher pressure and stress. In summary, the main difference between schedule 10 and schedule 40 steel pipes is their wall thickness and pressure ratings. Schedule 10 pipes have a thinner wall and are suitable for low-pressure applications, while schedule 40 pipes have a thicker wall and can handle higher pressure. It is important to choose the appropriate schedule based on the specific requirements and pressure limitations of the intended application.

Q:What are the main components of a steel pipe?: The main components of a steel pipe are the pipe body, which is made of steel and provides structural strength and durability, and the pipe ends, which can be either threaded or plain and are used for connecting and joining the pipe to other components or systems. Additionally, steel pipes may also have protective coatings or linings to enhance corrosion resistance and prolong their lifespan.

Q:What is the role of steel pipes in the aerospace industry?: Steel pipes in the aerospace industry serve various critical roles, primarily in the construction of aircraft structures and engines. They are commonly used for fuel and hydraulic systems, as well as for carrying pressurized air and gases. Steel pipes provide strength, durability, and resistance to high temperatures and pressure, ensuring the safety and reliability of aerospace components. Additionally, they contribute to fuel efficiency by reducing weight and minimizing fuel leakage.

Q:What is a tight steel tube?: The fully enclosed steel tube is called "sleeve connection steel pipe". The English abbreviation is JDG. The sleeve between the pipe and the pipe is fastened by screws. The current specification is the construction and acceptance rules of CECS 120:2007 sleeve steel conduit pipe line

Q:How are steel pipes used in the construction of dams and water reservoirs?: Steel pipes are used in the construction of dams and water reservoirs primarily for their strength and durability. They are commonly used to transport water within the dam or reservoir, as well as for drainage systems. Steel pipes are also utilized for the construction of intake and outlet structures, penstocks, and other components that require a robust and reliable material to withstand the high pressure and heavy loads associated with dam operation.

Q:How are steel pipes resistant to corrosion?: Steel pipes are resistant to corrosion due to a combination of factors. Firstly, steel pipes are often coated with a protective layer, such as zinc or epoxy, which acts as a barrier between the steel and the surrounding environment. This coating prevents moisture and other corrosive substances from coming into contact with the steel, reducing the chances of corrosion. Additionally, the composition of steel itself plays a role in its corrosion resistance. Steel is primarily made up of iron, with small amounts of other elements added to enhance its strength and durability. These elements, such as chromium and nickel, create a protective oxide layer on the surface of the steel. This oxide layer acts as a natural barrier, preventing the underlying steel from being exposed to moisture and oxygen, which are key contributors to corrosion. Furthermore, steel pipes can be treated through a process called galvanization, where a layer of zinc is applied to the surface. This zinc coating provides an extra layer of protection against corrosion, as zinc is highly resistant to rust and oxidation. The zinc sacrificially corrodes instead of the steel, further extending the lifespan of the pipe. Overall, the combination of protective coatings, the composition of steel, and galvanization processes all contribute to the corrosion resistance of steel pipes. This makes them highly durable and suitable for various applications, including plumbing, construction, and transportation of fluids and gases.

Q:How do you calculate the pipe volume flow rate for steel pipes?: The pipe volume flow rate for steel pipes can be calculated using the formula: V = A * V_avg, where V is the volume flow rate, A is the cross-sectional area of the pipe, and V_avg is the average velocity of the fluid flowing through the pipe.

Q:Can steel pipes be used for underground gas pipelines?: Yes, steel pipes can be used for underground gas pipelines. Steel pipes are commonly used in the construction of gas pipelines due to their strength, durability, and resistance to corrosion. They provide a reliable and safe means of transporting gas underground.

All these steel pipes are suitable for the industries of oil, natural gas,ship building,chemical, environmental protection,boiler, water conservancy, electrical industry,steel structure, building and other related fields.Our company following the principle that ‘customer supemacy, business integrity’We will do our best to supply best products and service to our customers. We expect mutual benefit.

1. Manufacturer Overview
Location	Tianjin, China
Year Established	2004
Annual Output Value	250,000Tons
Main Markets	Europe; South America; Americas;etc.
Company Certifications	API 5L；API 5CT；ISO 9001:2008 GB/T 19001-2008;ISO 9001:2008

2. Manufacturer Certificates
a) Certification Name
Range
Reference
Validity Period

3. Manufacturer Capability
a)Trade Capacity
Nearest Port	Tianjin
Export Percentage	50% - 60%
No.of Employees in Trade Department	1000-2000 People
Language Spoken:	English; Chinese; Spanish
b)Factory Information
Factory Size:	Above 70,000 square meters
No. of Production Lines	Above 8
Contract Manufacturing	OEM Service Offered; Design Service Offered
Product Price Range	Average