ERW 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

Line Pipe

Seamless Carbon Steel Tubes

Hot-rolled seamless steel tubes for hydraulic pillar service

API 5L Seamless line Pipe J55

Seamless Steel Alloy Pipe with Factory Price

Seamless steel pipe balck ASTM A106/A53 GRADE B

Galvanized Pipe America Standard A53 200g Hot Dipped or Pre-galvanized Pipe

Galvanized Pipe America-Standard ASTM A500 100g/200g Hot Dipped Pipe

ERW Welded Steel Pipes

Application of ERW Line Pipes API 5L:

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 of ERW Line Pipes API 5L:

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

Steel Grade of Line Pies API 5L:

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/9711.1 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 of ERW Line Pipes API 5L

Production Line Of ERW Pipe Line API 5L

PACKING OF ERW PIPE LINE API 5L

Q: Can steel pipes be used in plumbing systems?: Yes, steel pipes can be used in plumbing systems. Steel pipes are commonly used for plumbing due to their durability, strength, and resistance to corrosion. They are suitable for both residential and commercial plumbing applications and can effectively transport water, gas, and other fluids.

Q: How are steel pipes used in the food processing industry?: Steel pipes are commonly used in the food processing industry for various purposes such as transporting liquids, gases, and solids, as well as for conveying hot water, steam, and chemicals. These pipes are known for their durability, corrosion resistance, and ability to withstand high temperatures, making them ideal for applications where strict hygiene and safety standards are essential. Steel pipes are used in food processing plants for tasks like transferring ingredients, transporting processed products, and maintaining a sterile environment through steam cleaning and sanitization processes.

Q: What are the different methods of pipe bending for steel pipes?: There exists a variety of methods for bending steel pipes, each possessing its own advantages and limitations. 1. Manual Pipe Bending: The bending of steel pipes is achieved through the utilization of hand tools or a manual pipe bender. This method is best suited for small-scale projects or situations where only a few bends are necessary. However, it demands skill and precision to ensure accurate and consistent bends. 2. Rotary Draw Bending: This method involves the utilization of a mandrel, clamp die, and a bending die to bend the pipe around a stationary bend die. The mandrel serves to preserve the shape of the pipe and prevent wrinkling or collapsing during the bending process. Rotary draw bending is commonly employed to produce tight-radius bends with high accuracy and repeatability. 3. Induction Pipe Bending: In this method, a specific area of the steel pipe is heated using an induction coil, rendering it more malleable for bending. Once the desired temperature is attained, hydraulic or mechanical force is applied to bend the pipe. Induction bending is suitable for large-diameter pipes or situations requiring multiple bends in a single pipe. 4. Roll Bending: Also referred to as pyramid rolling, this method involves passing the steel pipe through three adjustable rolls that gradually shape the pipe into the desired form. Roll bending is suitable for generating large-radius bends and is frequently employed in the construction of spiral staircases, handrails, and structural applications. 5. Hot Bending: This method necessitates heating the steel pipe to elevated temperatures, typically accomplished using a furnace, in order to facilitate bending. Hot bending permits greater flexibility in shaping the pipe and is commonly used for large-diameter or thick-walled pipes. However, it demands specialized equipment and expertise to control the temperature and prevent distortion or damage to the pipe. When selecting the appropriate method of pipe bending for steel pipes, it is crucial to take into account factors such as the required bend radius, pipe diameter, wall thickness, and project specifications. Seeking the advice of an experienced pipe bending professional or engineer can assist in determining the most suitable method for a specific application.

Q: How do you determine the maximum allowable stress for steel pipes?: In order to establish the maximum allowable stress for steel pipes, several factors must be taken into account. These factors encompass the type of steel, the dimensions of the pipe, and the operating conditions it will be exposed to. To begin with, the type of steel chosen is a pivotal aspect in determining the maximum allowable stress. Different steel grades possess distinct mechanical properties, including yield strength, tensile strength, and elongation. These properties define the steel's capacity to withstand stress before deforming or failing. Hence, it is crucial to comprehend the specific grade of steel employed in the pipes to ascertain the maximum allowable stress. Additionally, the dimensions of the pipe are of utmost importance. The external diameter, wall thickness, and length all impact the pipe's strength and ability to handle stress. By calculating the cross-sectional area and moment of inertia, engineers can evaluate the pipe's resistance to bending and axial stresses. These calculations, combined with the material properties, facilitate the determination of the maximum allowable stress. Finally, the operating conditions under which the pipe will be utilized play a critical role. Variables such as temperature, pressure, and the presence of corrosive substances can significantly influence the maximum allowable stress of a steel pipe. Elevated temperatures can alter the mechanical properties of the steel, while high pressures can induce additional stress. Furthermore, the presence of corrosive substances can lead to material degradation and diminish the pipe's strength. Thus, considering these operational factors is essential when determining the maximum allowable stress. To summarize, the process of establishing the maximum allowable stress for steel pipes entails assessing the specific steel grade, the pipe's dimensions, and the operating conditions. By analyzing these factors, engineers can ensure that the steel pipe is designed and utilized within its safe stress limits.

Q: What are the different methods of inspecting steel pipes?: There are several methods of inspecting steel pipes, including visual inspection, non-destructive testing (such as ultrasonic testing, magnetic particle testing, and dye penetrant testing), radiographic testing, and eddy current testing. These methods help identify any defects, such as cracks, corrosion, or wall thickness variations, ensuring the quality and integrity of the steel pipes.

Q: What is the role of steel pipes in the transportation of liquefied natural gas (LNG)?: Due to their unique properties and characteristics, steel pipes are essential in the transportation of liquefied natural gas (LNG). LNG is a form of natural gas that is cooled to a liquid state for easier transportation and storage. Specific infrastructure is required for the transportation of LNG, and steel pipes are a crucial part of this infrastructure. To begin with, steel pipes are used in the construction of LNG terminals and liquefaction plants. These facilities are responsible for converting natural gas into its liquid form and storing it prior to transportation. The extremely cold temperatures needed to maintain LNG in its liquid state necessitate the use of materials that can withstand these conditions, and steel pipes are well-suited for this purpose. Steel pipes possess excellent strength and durability, enabling them to handle the low temperatures and high pressures involved in the liquefaction and storage processes. Additionally, steel pipes are employed in the transportation of LNG from the liquefaction plants to the storage tanks or shipping vessels. LNG is typically transported over long distances, either through pipelines or specialized LNG carriers. Steel pipes are utilized in the construction of underground or above-ground pipelines, providing a reliable and safe means of transporting the LNG. The pipes must be capable of maintaining the low temperatures of the LNG while enduring the pressures and stresses associated with the transportation process. Steel pipes offer the necessary strength, corrosion resistance, and thermal properties to ensure the safe and efficient transportation of LNG. Finally, steel pipes are also utilized in the construction of storage tanks for LNG. These tanks are designed to keep the LNG in its liquid state until it is ready for use or further transportation. The tanks are often constructed using a combination of steel plates and steel pipes. Steel pipes are employed to connect the various components of the tank, such as the inner and outer shells, reinforcing the structural integrity of the tank and guaranteeing its ability to withstand the extreme conditions to which it is exposed. In conclusion, steel pipes are vital in the transportation of liquefied natural gas (LNG) due to their strength, durability, and ability to endure low temperatures and high pressures. From the construction of LNG terminals and liquefaction plants to transportation through pipelines or specialized vessels, steel pipes are a crucial component of the infrastructure required for the safe and efficient transportation and storage of LNG.

Q: Can steel pipes be used for aboveground applications?: Steel pipes have the capability to be utilized in aboveground applications. Their strength, durability, and resistance to corrosion are well-known attributes, making them suitable for a variety of aboveground uses. Industries such as construction, oil and gas, water transportation, and infrastructure development often rely on steel pipes. Aboveground applications for steel pipes include structural supports, handrails, fencing, scaffolding, outdoor pipelines, and various other outdoor structures. Furthermore, steel pipes can undergo coating or painting processes to provide additional protection against weather conditions and enhance their aesthetic appearance. All in all, steel pipes offer versatility for aboveground applications due to their dependable nature and long-lasting performance.

Q: How do you protect steel pipes from fire?: To protect steel pipes from fire, there are several measures that can be taken. One commonly used method is to apply fire-resistant coatings or paints to the surface of the pipes. These coatings or paints are designed to withstand high temperatures and provide a barrier that prevents the heat from reaching the steel. Another effective way to protect steel pipes from fire is to wrap them with fire-resistant insulation materials. These materials act as a buffer, reducing the heat transfer and slowing down the spread of fire. Insulation materials such as mineral wool or ceramic fiber blankets are commonly used for this purpose. In addition, it is important to ensure that the steel pipes are properly installed and supported. This includes maintaining proper clearance from other flammable materials and avoiding overcrowding or obstructions that could impede the flow of air around the pipes. Adequate spacing between pipes is also crucial to prevent the transfer of heat from one pipe to another. Furthermore, it is recommended to incorporate firestop systems when steel pipes pass through fire-rated walls or floors. Firestop systems consist of fire-resistant materials and seals that prevent the spread of fire and smoke through openings or penetrations in fire-rated barriers. Regular maintenance and inspections are essential to ensure the ongoing effectiveness of the fire protection measures. Any damage or deterioration of the coatings, insulation, or firestop systems should be promptly repaired or replaced to maintain the fire resistance of the steel pipes. Overall, a combination of fire-resistant coatings, insulation, proper installation, and maintenance practices are crucial in protecting steel pipes from fire hazards. These measures help to minimize the risk of fire-related damage and ensure the safety of both the pipes and the surrounding environment.

Q: Can steel pipes be used for conveying oil?: Steel pipes are suitable for the transportation of oil. In the oil and gas industry, steel pipes are widely utilized for the conveyance of oil due to their robustness, longevity, and resistance to corrosion. The exceptional strength of steel pipes enables them to endure the demanding conditions of high pressure and temperature that often accompany oil transportation. Furthermore, steel pipes are less susceptible to leakage and damage in comparison to alternative materials, thus making them a dependable choice for the efficient transfer of oil over extensive distances. Moreover, the sleek interior surface of steel pipes aids in reducing friction and improving the oil flow. Overall, steel pipes are the preferred option for oil transportation owing to their superior mechanical properties and enduring performance.

Q: How are steel pipes protected against fire?: Steel pipes are protected against fire through various methods such as applying intumescent coatings, using fire-resistant insulation, or encasing them in fire-rated enclosures. These measures help to delay the heat transfer and maintain the structural integrity of the pipes during a fire, allowing them to withstand high temperatures and prevent the spread of fire.

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