The utility of the various high frequency welded pipe ERW

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 30 m.t.

Supply Capability:: 4000 m.t./month

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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

Q: How are steel pipes coated for aesthetic purposes?: There are various ways to coat steel pipes for aesthetic purposes. One commonly used method is to apply a powder coating. This involves spraying a dry powder onto the pipe's surface and then heating it to create a durable and attractive finish. Powder coating offers a wide range of color options and provides a smooth coating. Another method is electroplating, which involves immersing the pipe in a solution containing metal ions and passing an electric current through it. This creates a thin, decorative layer on the surface of the pipe. Electroplating can produce shiny, reflective surfaces or more matte, textured appearances. Painting is also a popular method for coating steel pipes aesthetically. It involves applying liquid paint or enamel to the pipe's surface. By choosing different colors, textures, and finishes, painting allows for a variety of aesthetic possibilities. However, it is crucial to use paint specifically formulated for metal surfaces and capable of withstanding environmental conditions. In addition to these methods, steel pipes can be coated using techniques like hot-dip galvanizing or metal cladding. These processes involve applying a layer of another metal, such as zinc or aluminum, to the pipe's surface. This not only enhances the appearance but also protects against corrosion, extending the pipe's lifespan. Overall, there are multiple methods available for aesthetically coating steel pipes. Each method has its own advantages and should be selected based on the desired appearance, durability, and environmental conditions. Factors like color, texture, finish, and protective properties must be considered to ensure the desired aesthetic result is achieved.

Q: Can steel pipes be used for underground culverts?: Yes, steel pipes can be used for underground culverts. Steel pipes are known for their strength, durability, and resistance to various environmental factors, which makes them suitable for underground applications. They can withstand heavy loads, high water pressure, and the corrosive effects of soil and water. Additionally, steel pipes are available in various sizes and thicknesses, allowing for customization to fit specific project requirements. However, it is important to consider factors such as the soil conditions, water table levels, and potential for corrosion when selecting the appropriate type of steel and protective coatings for the pipes.

Q: Can steel pipes be used for water distribution networks?: Yes, steel pipes can be used for water distribution networks. Steel pipes are commonly used for water distribution due to their durability, strength, and resistance to corrosion. They can handle high pressure and are able to withstand extreme weather conditions, making them suitable for long-term use in water distribution networks.

Q: Can steel pipes be used for heating and cooling systems?: Yes, steel pipes can be used for heating and cooling systems. Steel pipes are commonly used in HVAC (heating, ventilation, and air conditioning) systems as they have excellent heat transfer properties, durability, and can withstand high-pressure conditions. Additionally, steel pipes are resistant to corrosion, making them suitable for both heating and cooling applications.

Q: How are steel pipes affected by international trade policies?: Steel pipes can be significantly affected by international trade policies. For instance, trade barriers such as tariffs or quotas can increase the cost of importing steel pipes, making them less competitive compared to domestically produced pipes. Conversely, liberalized trade policies can enhance market access for steel pipe exporters, allowing them to expand their market share globally. Overall, the impact of international trade policies on steel pipes depends on the specific policies implemented and their effect on the cost, availability, and competitiveness of these products in the international market.

Q: How are steel pipes used in the mining and mineral processing industry?: Steel pipes are used in the mining and mineral processing industry for various purposes such as transporting fluids, conveying materials, and providing structural support. They are commonly used in the construction of underground mine shafts, pipelines, and equipment for transporting and processing minerals. The durability and strength of steel pipes make them ideal for withstanding the harsh conditions and demanding requirements of the mining industry.

Q: Is there any difference between thermal expansion seamless steel pipe and seamless steel pipe?: One is thermal expansion on a bar, that is, piercing between the bars and expanding the tube with a little bit of mandrel. The other is to expand the formed tube before it is heated so that the defects in the pipe will be enlarged. Comparatively speaking, the quality of the first kind is better than the second, and you should belong to the second kind. Compared with the original seamless seamless tube, the quality and chemical properties are certainly different. The price will be cheaper, too.

Q: What are the different methods of pipe support for steel pipes?: There are several different methods of pipe support for steel pipes, each designed to ensure the stability, alignment, and protection of the pipes. Some of the most commonly used methods include: 1. Pipe Hangers: These are devices that suspend or support the weight of the pipe from above. They are typically made of metal and can be adjustable or fixed, allowing for easy installation and maintenance. Pipe hangers can be used in various configurations, such as clevis hangers, beam clamps, or pipe rollers, depending on the specific application. 2. Pipe Shoes: These are supports that are directly attached to the bottom of the pipe, providing a stable resting surface. Pipe shoes are usually made of steel or other durable materials and are designed to prevent pipe movement, absorb vibrations, and distribute the weight evenly. They are commonly used in applications where pipes are subjected to high temperatures or where there is a need for thermal expansion. 3. Pipe Clamps: These are devices used to hold or fasten the pipes together or to a structure. Pipe clamps are typically made of metal and come in various sizes and designs to accommodate different pipe diameters and configurations. They provide support and prevent the pipes from sagging or moving, especially in areas where there are changes in direction or elevation. 4. Pipe Racks: These are structures that are specifically designed to support multiple pipes in an organized and secure manner. Pipe racks are commonly used in industrial settings, such as refineries or power plants, where large quantities of pipes need to be stored or supported. They are typically made of steel and can be customized to accommodate different pipe sizes and layouts. 5. Pipe Guides: These are devices that help guide and control the movement of the pipe, especially during thermal expansion or contraction. Pipe guides are typically fixed to the structure and provide a sliding surface to allow for the longitudinal movement of the pipe. They are commonly used in applications where there are changes in temperature, such as in steam or hot water systems. These are just a few of the many methods of pipe support for steel pipes. The choice of support method depends on factors such as pipe size, weight, temperature, and the specific requirements of the application. It is crucial to select the appropriate support method to ensure the longevity and integrity of the pipes and to prevent any potential issues such as sagging, misalignment, or failure.

Q: Can steel pipes be used for underground drainage in acidic soils?: Steel pipes can be used for underground drainage in acidic soils, but it is important to consider certain factors. Acidic soils can cause corrosion in steel pipes, leading to weakening and potential failure over time. To mitigate this risk, it is advisable to use galvanized steel pipes that are treated with a protective coating to resist corrosion. Additionally, regular inspection and maintenance should be carried out to identify and address any signs of corrosion or deterioration. It is also worth considering alternative materials such as PVC or HDPE pipes, which are more resistant to corrosion in acidic environments. Ultimately, the choice of material should be based on a thorough assessment of the soil conditions, the expected lifespan of the drainage system, and the budgetary constraints.

Q: What kind of argon arc welding wire is used for 16Mn steel pipe?: 16Mn steel weldability is very good, general use TIG with J50 welding wire, hand arc welding with J506, J507 and other welding rod

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