Large diameter longitudinal submerged arc welded pipe for selling

Large diameter longitudinal submerged arc welded pipe for selling System 1

Large diameter longitudinal submerged arc welded pipe for selling

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Loading Port:: Tianjin

Payment Terms:: TT or LC

Min Order Qty:: 30 m.t.

Supply Capability:: 9000 m.t./month

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Product Description:

1、Structure of Welded Steel Tube:

Welded Steel Tube is formed by drawing a solid billet over a piercing rod to create the hollow shell. We are company that have many years experience and professional manager team and engineer team and sales team, sure we will provide you high quality of welded pipe and professioanl service.

2、‍‍Main Features of the Welded Steel Tube:

• High manufacturing accuracy

• The higher strength

• The small inertia resistance

• Strong heat dissipation ability

• Good visual effect

• Satisfy price

3、Welded Steel Tube Specification：

Standard	Grade	（MPa）		（MPa）
		Yield strength		Tensile Strength
API SPEC 5L	PSL1
	B	≥241		≥414
	×42	≥290		≥414
	×46	≥317		≥434
	×52	≥359		≥455
	×56	≥386		≥490
	×60	≥414		≥517
	×65	≥448		≥531
	×70	≥483		≥565
	PSL2
		Min	Max	Min	Max
	B	241	448	441	758
	×42	290	496	414	758
	×46	317	524	434	758
	×52	359	531	455	758
	×56	386	544	490	758
	×60	414	565	517	758
	×65	448	600	531	758
	×70	483	621	565	758

Chemical Composition(%)

Standard	Grade	C	Mn	P	S	CEV
	Grade	Max	Max	Max	Max	Max
	PSL1					-
	B	0.26	1.2	0.030	0.030
	×42	0.26	1.3	0.030	0.030
	×46,×52,×56，X60	0.26	1.4	0.030	0.030
	X65	0.26	1.45	0.030	0.030
	X70	0.26	1.65	0.030	0.030
	PSL2					0.43
	B	0.22	1.20	0.025	0.015	0.43

1) Material: Grade:API 5L GR.B, X40, X42, X52, X56, X60, X65, X70.ST37/37-2,ST33,ST35.8,ST35.4.GB 9711.1/SY5037/GB3092

2) Specification range: OD: 406.4MM-1422MM (16”-56”)

Thickness: 8MM-50.8MM depends on OD

3) Excutive standards:GB,ASME API5L.ASTM A 106/A53,Despite of the above standards,we can also supply seamless steel pipe with standard of DIN,JIS,and so on,and also develop new products according to the requirements of our clients!
4) Surface:black lacquered,varnish coating or galvanized.
5) Ends:Beveled or square cut,plastic capped,painted.
6) Packing:bundles wrapped with strong steel strip,seaworthy packing.

4、Packaging & Delivery

Packaging Details:	seaworthy package,bundles wrapped with strong steel strip
Delivery Detail:	15-30days after received 30%TT

5、FAQ of Welded Steel Tube:

①How is the quality of your products?
We have many years business experience in this area, and we have professional engineer and manager team and sure we can provide you high quality production and professional service.

②How about price?
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?
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.

6、‍‍ Welded Steel Tube Images：

Large diameter longitudinal submerged arc welded pipe for selling

Q: Can steel pipes be used for chemical refineries?: Yes, steel pipes can be used for chemical refineries. Steel pipes are commonly used in chemical industries due to their high strength, durability, and resistance to corrosion. They can withstand high pressure and temperature conditions, making them suitable for transporting various chemicals and fluids within a refinery. Additionally, steel pipes can be easily welded, ensuring a secure and leak-proof system in chemical refineries.

Q: How are steel pipes insulated to prevent noise transmission?: Steel pipes are typically insulated to prevent noise transmission by using materials such as fiberglass or mineral wool wraps. These insulating materials are wrapped around the pipes, creating a barrier that absorbs and dampens sound waves, reducing noise transmission. Additionally, acoustic lagging or jackets can also be applied to further reduce noise and vibration.

Q: How are steel pipes used in the construction of offshore oil rigs?: Steel pipes are used in the construction of offshore oil rigs primarily for the transportation of oil and gas. These pipes are used to connect the wells drilled in the seabed to the surface facilities on the rig. They are also utilized for the circulation of drilling fluids, which help maintain stability and cool down the drilling equipment. Additionally, steel pipes are used to construct the rig's structural components like risers, conductors, and caissons, providing strength and support in the harsh offshore environment.

Q: Can steel pipes be used for structural supports in buildings?: Yes, steel pipes can be used for structural supports in buildings. Steel pipes are known for their strength, durability, and ability to withstand heavy loads. They have high tensile strength, which means they can withstand large amounts of tension and compression without breaking or deforming. This makes them ideal for structural applications in buildings where strong and stable supports are required. Steel pipes can be used for various purposes such as columns, beams, trusses, and even as the main support for the entire building. They are also versatile and can be easily fabricated and customized to fit specific design requirements. Additionally, steel pipes are resistant to fire, corrosion, and pests, making them a reliable choice for long-term structural support in buildings.

Q: What is the size of seamless steel tube DN150?: Seamless steel tube is generally used to indicate the outer diameter * wall thickness, DN150 seamless steel pipe GB wall thickness is 5mm. Wall thickness is a series of calculations based on your design, pressure, temperature, and pipe material.

Q: What are the common materials used for pipe fittings in steel pipes?: Pipe fittings in steel pipes can be made from various materials, including carbon steel, stainless steel, and alloy steel. Carbon steel fittings are popular due to their affordability, strength, and durability, making them suitable for applications in oil and gas, petrochemical, and water distribution systems. On the other hand, stainless steel fittings are highly resistant to corrosion and are commonly used in industries that prioritize hygiene, such as the food and beverage and pharmaceutical sectors. Alloy steel fittings, which consist of elements like chromium, nickel, and molybdenum, are designed to enhance strength and corrosion resistance, making them ideal for high-pressure and high-temperature environments like power plants and chemical facilities. Ultimately, the selection of pipe fitting material in steel pipes depends on the specific requirements of the application and the surrounding conditions.

Q: Seamless steel tube 89X4 meters, how heavy?: The theoretical weight calculation formula of plain carbon steel and alloy steel seamless pipe:W=0.02466 (D-S) S, the density of steel fand 7.85kg/dmNote: weight per meter kg/m= (outer diameter wall thickness) * wall thickness *0.02466 units, mm: mmFor example, the seamless steel pipe with a diameter of 89*4 weight per meter:(89-4) *4*0.02466=8.384 kg / M.

Q: What are the different types of steel pipe hangers?: There are several different types of steel pipe hangers, including clevis hangers, riser clamps, beam clamps, strut clamps, and loop hangers. Each type is designed to securely support and suspend pipes in various applications, such as plumbing, HVAC, and industrial systems.

Q: How are steel pipes protected from corrosion?: Steel pipes are protected from corrosion through various methods such as applying protective coatings, galvanizing the pipes, or using corrosion inhibitors.

Q: What is the role of steel pipes in the renewable energy sector?: The transportation and distribution of various energy sources in the renewable energy sector heavily rely on steel pipes. An important application of steel pipes is seen in the construction of pipelines for transporting natural gas, which is increasingly being used as a cleaner alternative to traditional fossil fuels. Due to its strength, durability, and resistance to corrosion, steel is commonly chosen for these pipelines, ensuring the secure and efficient delivery of natural gas to power plants and other energy consumers. Furthermore, steel pipes are utilized in the installation of geothermal energy systems. Geothermal energy utilizes the heat from the earth's core to generate electricity or provide heating and cooling. Steel pipes are employed to create geothermal wells, allowing the extraction of hot water or steam from underground reservoirs. These pipes must withstand high temperatures and pressures, making steel an ideal material for this purpose. Additionally, hydraulic systems for hydroelectric power plants heavily rely on steel pipes. These power plants generate electricity using the force of flowing water, and steel pipes are used to convey water from the reservoir to the turbines. The durability and reliability of steel ensure the efficient transmission of water, enabling hydroelectric power plants to produce clean and renewable energy. In the construction of solar power plants, steel pipes also play a crucial role. Solar thermal systems concentrate sunlight to generate heat, which is then transferred to a fluid to produce steam and drive turbines. Steel pipes are essential for circulating and transferring this fluid, ensuring the effective operation of the solar power plant. In conclusion, steel pipes are indispensable in the renewable energy sector due to their strength, durability, and resistance to corrosion. They facilitate the transportation of natural gas, the extraction of geothermal energy, the transmission of water in hydroelectric power plants, and the circulation of fluids in solar power plants. By enabling the efficient distribution of various energy sources, steel pipes significantly contribute to the growth and sustainability of the renewable energy sector.

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