A Aariety of High-frequency Welded Pipe ERW Utility

A Aariety of High-frequency Welded Pipe ERW Utility

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Loading Port:: China main port

Payment Terms:: TT or LC

Min Order Qty:: 10 m.t.

Supply Capability:: 5000 m.t./month

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Product Description:

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).

Standard of ERW Welded Pipes: API SPEC 5L, API SPEC 5CT, ASTM A53, GB/T9711.1

Steel Grade of ERW Welded 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 ERW Welded Pipes:

Standard: GB/9711.1

Mechanical Properties

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

FAQ of Welded Pipe:

①How is the quality of your products?
Our products are manufactured strictly according to national and internaional standard, and we take a test on every pipe before delivered out. If you want see our quality certifications and all kinds of testing report, please just ask us for it.
Guaranteed: If products’ quality don’t accord to discription as we give or the promise before you place order, we promise 100% refund.

②How about price?
Yes, we are factory and be able to give you lowest price below market one, and we have a policy that “ for saving time and absolutely honest business attitude, we quote as lowest as possible for any customer, and discount can be given according to quantity”,if you like bargain and factory price is not low enough as you think, just don’t waste your time.Please trust the quotation we would give you, it is professional one.

③Why should you chose us?
Chose happens because of quality, then price, We can give you both.Additionally, we can also offer professional products inquiry, products knowledge train(for agents), smooth goods delivery, exellent customer solution proposals.Our service formula: good quality+good price+good service=customer’s trust
SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem.

Any question, pls feel free to contact us !

Welded Pipe Images：

A Aariety of High-frequency Welded Pipe ERW Utility

Q:Why seamless steel pipe called seamless steel pipe?: Steel pipe is divided into seamless steel pipe and welded steel pipe two kinds: seamless steel pipe is ingot or tube billet, through the perforation made capillary, and then by hot rolling, cold rolling or cold drawn made, so seamless steel pipe is divided into hot-rolled and cold drawn two categories. Welded steel pipe is through the steel plate or steel strip after bending forming, and then welded to make, according to the form of weld is divided into longitudinal welded pipe and spiral welded pipe two kinds. It is obvious that seamless welded pipe has no weld and that welded steel pipe has weld line.

Q:Are steel pipes suitable for fire protection systems?: Yes, steel pipes are suitable for fire protection systems. They have excellent fire resistance properties and can withstand high temperatures, making them ideal for conveying water or other fire suppressants in fire protection systems. Steel pipes are also strong, durable, and resistant to corrosion, ensuring long-term reliability and effectiveness in fire protection applications.

Q:How are steel pipes used in the pharmaceutical industry?: Steel pipes are used in the pharmaceutical industry for various purposes, including the transportation of liquids, gases, and chemicals, as well as for the distribution of water and steam. They provide a reliable and durable solution for the safe and efficient transfer of pharmaceutical products within manufacturing facilities and during distribution processes.

Q:Seamed steel pipe seamless steel pipe, carbon steel pipe, galvanized pipe, four how to distinguish between: Major use differentiation:1, seamed tube can withstand the maximum operating 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;2 seamless tube can withstand ultra-high pressure, of course, its wall thickness will also increase, which needs to be designed according to pressure requirements. It is generally used in high-pressure oil pipes, boiler tubes and other high temperature and high pressure equipment. There are also seamless tubes for structural purposes, depending on the design requirements.3, there are some seamed steel pipe seamless treatment tube, it is the weld annealing treatment, eliminate the residual stress of the weld, the weld and base material, the pressure range of basic and seamless pipe is. May also consider the use of.4, of course, the market also has some use overall heating after drawing steel pipe joints or mandrel rolling seamless steel pipe, mainly in small size, only in the shape of this kind of pipe belongs to the seamless tube, it is not very good

Q:What is the maximum operating temperature for steel pipes?: The specific grade of steel used typically determines the maximum operating temperature for steel pipes. Carbon steel pipes, for instance, can generally endure temperatures ranging from 800-1000 degrees Fahrenheit (427-538 degrees Celsius). On the other hand, stainless steel or high-temperature alloys can withstand even higher temperatures, exceeding 1200-1500 degrees Fahrenheit (649-816 degrees Celsius). To determine the precise maximum operating temperature for a particular type of steel pipe, it is crucial to refer to the manufacturer's specifications or industry standards. This is because varying grades and compositions may have distinct temperature limits.

Q:How do steel pipes handle water hammer in high-rise buildings?: Steel pipes in high-rise buildings are designed to handle water hammer through various measures. Firstly, steel pipes have high strength and durability, allowing them to withstand the sudden pressure surges caused by water hammer. Additionally, steel pipes are often installed with shock absorbers or surge tanks to reduce the impact of water hammer. These devices absorb and dissipate the excess energy generated during water hammer, preventing damage to the pipes and fittings. Moreover, proper pipe sizing, layout, and support systems are implemented to minimize the effects of water hammer, ensuring the smooth and efficient flow of water in high-rise buildings.

Q:How are steel pipes used in firefighting systems?: Steel pipes are used in firefighting systems to transport water or other fire-suppressing agents from a water source to the location of a fire. These pipes are durable and resistant to heat, making them suitable for carrying large volumes of water at high pressure to extinguish fires effectively. Additionally, steel pipes are often used for underground or overhead fire hydrant systems, sprinkler installations, and standpipe systems in buildings to ensure a reliable and efficient firefighting infrastructure.

Q:What are steel pipes?: Steel pipes are cylindrical tubes made from steel that are used for various purposes, such as transporting fluids and gases, structural applications, and construction projects. They are known for their durability, strength, and resistance to corrosion, making them a popular choice in industries such as oil and gas, plumbing, and infrastructure development.

Q:How are steel pipes coated for underground applications?: Steel pipes are typically coated for underground applications using a process known as external coating or corrosion protection. This involves applying a layer of protective material, such as epoxy or polyethylene, onto the surface of the steel pipe. The coating acts as a barrier, preventing the pipe from coming into contact with moisture, soil, and other corrosive elements that could lead to degradation over time. Additionally, before applying the coating, the steel pipes are often cleaned and prepared through processes like sandblasting or shot blasting to remove any impurities and create a smooth surface for better adhesion of the protective coating.

Q:How are steel pipes used in the manufacturing of automotive exhaust systems?: Steel pipes are commonly used in the manufacturing of automotive exhaust systems as they possess high strength, durability, and resistance to heat and corrosion. These pipes are used to transport exhaust gases from the engine to the tailpipe, ensuring the safe and efficient operation of the vehicle. They are typically bent and welded together to create a complex network of pipes that helps direct the flow of exhaust gases and reduce noise levels. Overall, steel pipes play a crucial role in the construction of automotive exhaust systems, contributing to their reliability and longevity.

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