API SPEC 5 Lhigh frequency welded pipe ERW

API SPEC 5 Lhigh frequency welded pipe ERW

Ref Price:

Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 10 m.t.

Supply Capability:: 3500 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

High Quality Hollow Section-Square Tubes

Seamless Carbon And Alloy Steel Mechanical Tubing

High Quality ASTM A53 ERW Welded Steel Pipe

ERW Welded Pipes

API 5L Seamless Line Pipe

Seamless steel pipe ASTM A106/API 5L/ASTM A53 GR.B high quality

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

Non-dig Drill Pipe with API Spec 5DP Standard

ERW Welded Steel Pipes

Application of API ERW Line Pipes :

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 of API ERW Line Pipes:

bundles with anti-rust painting and with plastic caps

Standard of API ERW Line Pipes:

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

Steel Grade of API ERW Line Pipes:

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

Sizes of pipes of API ERW Line Pipes:

*Remark: Besides below sizes, we also can arrange production based on requirement of customers

OD		WT			WEIGHT
INCH	MM	SCH	MM	INCH	KG/M	LB/INCH
1 1/2”	48.3	STD-40	3.68	0.145	4.09	2.75
1 1/2”	48.3	XS-80	5.08	0.2	5.47	3.68
2”	60.3	STD-40	3.91	0.154	5.49	3.69
2”	60.3	XS-80	5.54	0.218	7.56	5.08
2 1/2”	73	STD-40	5.16	0.203	8.72	5.86
2 1/2”	73	XS-80	7.01	0.276	11.52	7.74
3”	88.9	STD-40	5.49	0.216	11.41	7.67
3”	88.9	XS-80	7.62	0.3	15.43	10.37
3 1/2”	101.6	STD-40	5.74	0.226	13.71	9.21
3 1/2”	101.6	XS-80	8.08	0.318	18.83	12.65
4”	114.3	STD-40	6.02	0.237	16.24	10.91
4”	114.3	XS-80	8.56	0.337	22.55	15.15
5”	141.3	STD-40	6.55	0.258	21.99	14.78
5”	141.3	XS-80	9.53	0.375	31.28	21.02
6”	168.3	STD-40	7.11	0.28	28.55	19.19
6”	168.3	XS-80	10.97	0.432	42.99	28.89
8”	219.1	STD-40	8.18	0.322	42.98	28.88
8”	219.1	XS-80	12.7	0.5	65.3	43.88
10”	273	STD-40	9.27	0.365	60.9	40.92
10”	273	80	15.09	0.594	96.95	65.15
12”	323.8	STD	9.53	0.375	74.61	50.13
12”	323.8	40	10.31	0.406	80.51	54.1
12”	323.8	XS	12.7	0.5	98.42	66.14
12”	323.8	80	17.48	0.688	133.38	89.63
14”	355.6	40	11.13	0.438	95.51	64.18
14”	355.6	XS	12.7	0.5	108.48	72.9
14”	355.6	80	19.05	0.75	159.71	107.32
16”	406.4	XS-40	12.7	0.5	124.55	83.69
18”	457	STD	9.53	0.375	106.23	71.38
18”	457	40	14.27	0.562	157.38	105.75
18”	457	80	23.83	0.938	257.13	172.78
20”	508	40	15.09	0.594	185.28	124.5
20”	508	80	26.19	1.031	314.33	211.22

Machinical 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

Q: Can steel pipes be used for conveyor systems?: Yes, steel pipes can be used for conveyor systems. Steel pipes are commonly used in conveyor systems due to their high strength, durability, and ability to withstand heavy loads and harsh environments. They provide a reliable and long-lasting solution for transporting various materials in conveyor applications.

Q: Are steel pipes suitable for underground compressed air systems?: Yes, steel pipes are generally suitable for underground compressed air systems. Steel pipes have several advantages that make them a popular choice for such applications. Firstly, steel pipes are known for their high strength and durability, which allows them to withstand the pressure and stress associated with compressed air systems. They can handle high operating pressures without any significant risk of bursting or leaking. Secondly, steel pipes have excellent resistance to corrosion and can withstand exposure to moisture, soil, and other underground elements. This makes them a reliable choice for underground installations, where pipes may be exposed to moisture and other potentially corrosive substances. Furthermore, steel pipes are relatively easy to install and maintain. They can be welded or threaded together, ensuring a secure and leak-free connection. Additionally, steel pipes can be easily inspected and repaired if necessary, allowing for cost-effective maintenance and repairs. However, it is important to note that the suitability of steel pipes for underground compressed air systems may also depend on other factors such as the specific requirements and conditions of the system. It is advisable to consult with a professional engineer or a qualified expert to ensure that steel pipes are the most appropriate choice for a specific application.

Q: What is the elasticity of steel pipes?: The elasticity of steel pipes refers to their ability to deform under external forces and return to their original shape once the force is removed. Steel pipes are known for their high elasticity, which enables them to withstand various forms of stress and strain without permanent deformation. This property is crucial in applications where pipes are subjected to pressure, bending, or other mechanical forces. The elasticity of steel pipes is determined by the material properties of steel, such as its Young's modulus, which is a measure of its stiffness and ability to resist deformation.

Q: What is the maximum temperature that steel pipes can withstand?: The maximum temperature that steel pipes can withstand depends on the grade and type of steel used. Generally, carbon steel pipes can withstand temperatures up to 1000°C (1832°F), while stainless steel pipes can handle temperatures up to 1200°C (2192°F). However, it is essential to consult the specific specifications and guidelines provided by the manufacturer for accurate temperature limits.

Q: Can steel pipes be used in extremely cold temperatures?: Yes, steel pipes can be used in extremely cold temperatures. Steel is known for its strength and durability, making it suitable for various applications, including those in freezing conditions. However, it is important to note that steel contracts in cold temperatures, which may affect its dimensions and structural integrity. Therefore, proper insulation and precautions should be taken to prevent any potential issues such as cracking or leakage.

Q: How are steel pipes handled and transported safely?: Steel pipes are handled and transported safely by following certain protocols. Firstly, they are properly secured and stacked in a way that prevents any movement or damage during transportation. The pipes are often bundled together using steel bands or straps to ensure stability. Additionally, specialized equipment such as cranes, forklifts, or pipe handling systems are used to lift and move the pipes with care. Adequate protective measures, such as using cushioning materials and covers, are taken to prevent corrosion or external damage. Furthermore, proper training is provided to workers involved in handling and transportation to ensure they follow safety guidelines and use appropriate lifting techniques. Overall, a combination of careful planning, secure packaging, and trained personnel contribute to the safe handling and transportation of steel pipes.

Q: How are steel pipes used in the construction of dams?: Steel pipes are commonly used in the construction of dams for various purposes. They are primarily used for the transportation of water within the dam structure, supplying water to turbines for hydroelectric power generation. Steel pipes are also used for drainage systems, allowing water to be discharged safely and efficiently. In addition, they are utilized for the construction of penstocks, which are large pipes that control the flow of water from the reservoir to the turbines. Overall, steel pipes play a crucial role in the infrastructure of dams, ensuring the efficient management and utilization of water resources.

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: What is the maximum operating temperature for steel pipes?: The maximum operating temperature for steel pipes can vary depending on the grade of steel used, but it is generally around 1000°C (1832°F) for standard carbon steel pipes.

Q: What is the difference between seamless steel pipes and seamless alloy steel pipes?: The main difference between seamless steel pipes and seamless alloy steel pipes lies in their composition. Seamless steel pipes are made from carbon steel, while seamless alloy steel pipes are made from various alloying elements such as chromium, molybdenum, and nickel, among others. This difference in composition gives seamless alloy steel pipes enhanced properties such as increased strength, corrosion resistance, and temperature resistance, making them suitable for more demanding applications in industries like oil and gas, aerospace, and power generation.

Send your message to us

*Email

*TEL

*Quantity

*Unit