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

Seamless Steel Tubes For Elevated Temperatures

ASTM 53 ERW welded pipes--Tube and Pipe

Oil Tubing / Petroleum Pipe

Hot-rolled seamless steel tubes for hydraulic pillar service

Seamless Steel Pipe of Top Supplier

Galvanized pipe ASTM A53 100g/200g hot dipped / pre galvanized pipe

3/4” Hot selling low price ASTM A179 Gr.C seamless carbon steel pipe

Pre-galvanized Galvanized Pipe America Standard A53 Q195 100g

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: How do you determine the required wall thickness for steel pipes?: The determination of the necessary wall thickness for steel pipes involves the consideration of multiple factors and calculations. One of the main factors to be taken into account is the pressure to which the pipe will be exposed. As the pressure increases, a thicker wall is required to guarantee that the pipe can endure the internal forces. The material strength of the steel used for the pipe is also a significant factor. Different steel grades possess varying tensile strengths, which directly impact the required wall thickness. Tensile strength refers to the maximum stress a material can withstand before failing, making it crucial to select a steel grade capable of withstanding the expected pressure. Furthermore, the pipe's diameter is influential in determining the necessary wall thickness. Pipes with larger diameters typically necessitate thicker walls to maintain their structural integrity and prevent deformation under pressure. Engineers employ industry standards and formulas to calculate the required wall thickness. The American Society of Mechanical Engineers (ASME) B31 code is the most widely used standard, offering guidelines for designing pressure piping systems. The ASME code integrates safety margins, material properties, and pressure ratings to determine the appropriate wall thickness. Other factors, such as temperature, corrosion, and external loads, can also influence the necessary wall thickness. For instance, applications involving high temperatures may require thicker walls to prevent buckling or softening of the pipe. In conclusion, the determination of the required wall thickness for steel pipes involves the consideration of pressure, material strength, diameter, temperature, and other external forces. Engineers rely on industry standards and calculations to ensure the pipe's ability to safely withstand the intended operating conditions.

Q: What is the weight and strength of steel pipes?: Steel pipes can vary in weight and strength depending on their dimensions and the specific grade of steel used. The weight of steel pipes is typically measured in pounds per foot or kilograms per meter. The strength of steel pipes is commonly measured in terms of its yield strength and ultimate tensile strength. The weight of steel pipes can range from a few pounds per foot for smaller sizes to several hundred pounds per foot for larger diameters and thicker walls. The weight is influenced by factors such as the pipe's outer diameter, wall thickness, and length. For example, a 1-inch diameter steel pipe with a wall thickness of 0.125 inches may weigh around 0.67 pounds per foot, while a 12-inch diameter steel pipe with a wall thickness of 0.5 inches can weigh around 142 pounds per foot. The strength of steel pipes is determined by the grade of steel used, which can vary depending on the application and specific requirements. Common grades of steel used for pipes include ASTM A53 for general-purpose applications, ASTM A106 for high-temperature service, and API 5L for oil and gas transportation. These grades have different yield strengths and ultimate tensile strengths. Yield strength refers to the amount of stress a steel pipe can withstand before it begins to deform plastically. It is usually measured in pounds per square inch (psi) or megapascals (MPa). For example, ASTM A53 Grade B steel pipe has a minimum yield strength of 35,000 psi (240 MPa), while API 5L Grade X65 steel pipe has a minimum yield strength of 65,000 psi (448 MPa). Ultimate tensile strength, on the other hand, is the maximum stress a steel pipe can withstand before it fractures. It is also measured in psi or MPa. For instance, ASTM A106 Grade B steel pipe has an ultimate tensile strength of 60,000 psi (415 MPa), whereas API 5L Grade X65 steel pipe has an ultimate tensile strength of 77,000 psi (531 MPa). In summary, the weight and strength of steel pipes can vary depending on their dimensions and the grade of steel used. The weight is influenced by factors such as the pipe's diameter, wall thickness, and length, while the strength is determined by the steel's yield strength and ultimate tensile strength.

Q: How are steel pipes measured?: Steel pipes are typically measured by their outer diameter (OD) and wall thickness. The OD is measured using a caliper or tape measure, while the wall thickness is determined using specialized tools like ultrasonic gauges or micrometers. These measurements are crucial for determining the pipe's size, strength, and suitability for various applications.

Q: What are the different types of threading on steel pipes?: There are several types of threading commonly used on steel pipes, including tapered or NPT (National Pipe Taper), straight or NPS (National Pipe Straight), and British Standard Pipe (BSP) threading. These different types of threading are designed to ensure a secure and leak-free connection between pipes and fittings.

Q: What are the different types of couplings used with steel pipes?: There are several types of couplings used with steel pipes, including threaded couplings, slip-on couplings, compression couplings, and grooved couplings.

Q: Can steel pipes be used for oil well casing?: Yes, steel pipes can be used for oil well casing. Steel is a commonly used material for oil well casing due to its strength, durability, and resistance to corrosion.

Q: What are the different types of gaskets used with steel pipes?: There are several types of gaskets commonly used with steel pipes, including ring type joint (RTJ) gaskets, spiral wound gaskets, and flat gaskets. RTJ gaskets are designed to create a tight seal by compressing between two flanges, while spiral wound gaskets consist of a metal winding and filler material for enhanced sealing properties. Flat gaskets are typically made from rubber or non-metallic materials and are used for lower pressure applications.

Q: Seamless steel tube with the tube with what is the difference?: Seamed tube can withstand the maximum pressure is generally less than 20 kg, which is the most secure use. It is generally used in water, gas, compressed air and other low-pressure fluid;

Q: What are the typical lengths of steel pipes?: The typical lengths of steel pipes can vary depending on their purpose and application. However, common lengths range from 20 feet (6 meters) to 40 feet (12 meters) in commercial and industrial settings.

Q: Is it good to buy a simple wardrobe or a steel pipe?: Therefore, the simple solid wood wardrobe and steel pipe wardrobe is good or bad, according to personal preferences to set, and that environmental protection seems to have grades, easy to crack

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