Seamless Pipe with High Quality

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Specifications

1. OD 21MM-1066MM, WT 2MM-60MM
2. certificate: ISO, API
3. Strength: large diameter thick wall seamless pipe
4. BE, PE.

Carbon Steel Seamless Pipes
OD	21.3mm-1066.8mm(1/2”-42”)
WT	2mm-60mm
Length	Random Length: 3.5m-12m, or fixed length 5.8m or as the customer’s requirement.
Standard	ASTM A53, ASTM A106, API 5L, DIN 17175, GOST8731/8732, G3457/G3452 etc.
Material	Q235B, 10#,20#,45#, 16Mn, 15MnV. A53B, A106B, API5L B, A192, A179C, A213-T12, A213-T22, A335-P1, A335-P2, A333 ST37, ST33, ST37-2, ST35.8 ST42 etc.
Certificate	API certificate and ISO certificate.
Surface	Rust remove, black painting, antirust oil, varnish, 3PE, hot-dip galvanized etc.
Package	By bundles, plastic caps or steel caps, woven, wooden cases or as requirement.
Capability	6000tons/month.
End	BE/PE.
Advantage	Big diameter and thick wall pipes. Best price with good quality. The partner you can trust. Good service and very patient.

Seamless steel pipe
Alloy pipe	Cr5Mo(P5, STFA25, T5) 15CrMo(P11, P12, STFA22) 13CrMo44 12Cr1MoV P22 (10CrMo 910) T91, P91, P9, T9 Wb36	GB5310-95 GB9948-88 ASTM335/A335M ASTM213/213M DIN17175-79 JISG3467-88 JISG3458-88	*16-8242-100**	The seamless steel pipe features resistance to high pressure, high/low temperature and corrosion and is used in the industries of petroleum, chemical engineering and electric power as well as boiler
High-pressure boiler pipe	20G, A106, ST45.8/	GB5310-95 ASTMA106-99 DIN17175-79	*14-6302-80**	Temperature-resistant seamless steel pipe for high-pressure boiler
High-pressure seamless pipe for petroleum cracking and fertilizer making equipments	20, 12CrMo, 15CrMo	GB9948-88	*10-5301.5-36**	Boiler price for refinery, heat-exchanging pipe, seamless steel pipe for pipeline
	20, 16Mn, Q345	GB6479-2000	*18-5303-40**	Fertilizer making equipment and pipe line
Low and medium pressure boiler pipes	10, 20	GB3087-1999	*10-5302-40**	Over-heat pipe for low and medium-pressure boiler, boiling water pipe, locomotive smoke pipe(big and small)
Fluid pipe	20, Q345	GB/T8163-1999	*8-6301.0-40**
Structural pipe	10,20,35,45, 16Mn, Q345B	GB/T8162-1999	*6-10201.5-100**
Line pipe	Grade B	API	*60-6301.5-40**	Carrying gas, water or oil in the industries of petroleum and natural gas
Hydraulic prop pipe	27SiMn	GB/T17396-1998	*70-3779-40**
Ship pipe	410	GB/T5312-1999	*14-4261.5-45**	Pipes for ship, boiler and over-heater

FAQ of Seamless 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.

‍‍Seamless Pipe Images：

Seamless Pipe with High Quality

Q:Can steel pipes be used for underground gas pipelines?: Yes, steel pipes can be used for underground gas pipelines. Steel pipes are often the preferred choice for underground gas pipelines due to their strength, durability, and resistance to corrosion. They can effectively handle the high pressure and extreme temperature variations associated with transporting gas underground.

Q:What is the impact resistance of steel pipes?: Steel pipes have high impact resistance, meaning they can withstand significant external forces without fracturing or breaking. This makes them highly durable and suitable for various applications, especially in industries where they are subjected to heavy loads or potential impacts.

Q:How do you calculate the pipe friction loss for steel pipes?: In order to determine the pipe friction loss for steel pipes, one must utilize the Darcy-Weisbach equation. This particular equation is widely employed in the field of fluid dynamics to ascertain the drop in pressure or friction loss that arises from the flow of fluid through a pipe. The equation is formulated as follows: The pressure drop or friction loss (ΔP) can be calculated by dividing the product of the Darcy friction factor (f), the length of the pipe (L), the density of the fluid (ρ), and the square of the velocity of the fluid (V²), by twice the diameter of the pipe (D). The Darcy friction factor (f), which is a dimensionless value, is contingent upon the Reynolds number (Re) and the relative roughness (ε/D) of the pipe. Here, ε represents the absolute roughness of the pipe. There are various correlations or Moody's diagram that can be employed to determine the friction factor. Once the friction factor has been ascertained, the values for length, density, velocity, and diameter can be substituted into the equation to calculate the pressure drop or friction loss. It is of utmost importance to ensure that the units for all variables remain consistent (e.g., length in meters, density in kg/m³, velocity in m/s, diameter in meters) in order to achieve precise results. By utilizing this equation and acquiring the requisite parameters, it becomes possible to calculate the pipe friction loss for steel pipes. Such calculations are essential in the design and analysis of fluid flow systems.

Q:What is the maximum length of a steel pipe?: The maximum length of a steel pipe will vary depending on various factors such as manufacturing capabilities, transportation limitations, and practical considerations. However, in general, steel pipes can typically be manufactured and transported in lengths ranging from a few meters to several hundred meters.

Q:What material is RHS in the steel tube?: RHS is a rectangular hollow section steel. The RHS structure represents a rectangular hollow section steel.

Q:What are the advantages of using steel pipes over other materials?: There are several advantages of using steel pipes over other materials. Firstly, steel pipes are incredibly durable and have a high tensile strength, making them resistant to extreme temperatures, pressure, and corrosion. Secondly, steel pipes have excellent structural integrity, allowing for longer spans and fewer supports. Additionally, steel pipes are highly versatile and can be easily welded, threaded, or joined, making installation and maintenance easier. Lastly, steel pipes are cost-effective in the long run as they require minimal maintenance and have a longer lifespan compared to other materials.

Q:How are steel pipes used in water treatment plants?: Steel pipes are commonly used in water treatment plants to transport and distribute water throughout the facility. They are used for various purposes, such as conveying raw water from the source to the treatment plant, distributing treated water to different areas, and carrying wastewater to the appropriate treatment processes. The durability and strength of steel pipes make them suitable for handling the high pressure and corrosive nature of water in these industrial settings.

Q:What are the common uses of stainless steel pipes?: Stainless steel pipes are widely used in various industries for a multitude of applications. Some of the common uses of stainless steel pipes include: 1. Plumbing and Water Supply: Stainless steel pipes are often used in residential, commercial, and industrial plumbing systems due to their corrosion resistance, durability, and ability to handle high-pressure applications. They are also used in water treatment plants and wastewater management systems. 2. Oil and Gas Industry: Stainless steel pipes are extensively used in the oil and gas industry for transporting oil, gas, and other fluids. They can withstand high temperatures, pressure, and corrosive environments, making them ideal for this industry. 3. Food and Beverage Industry: Stainless steel pipes are widely used in the food and beverage industry due to their hygienic properties and resistance to corrosion. They are commonly used for transporting liquids, gases, and food products in processing plants, breweries, wineries, dairies, and other food-related facilities. 4. Chemical and Petrochemical Industry: Stainless steel pipes are critical in the chemical and petrochemical industry, where they are used for transporting corrosive chemicals, acids, and other hazardous substances. The pipes' resistance to corrosion and high temperatures makes them suitable for these demanding applications. 5. Construction and Architecture: Stainless steel pipes are used in construction and architecture for various purposes such as structural support, handrails, guardrails, and decorative elements. Their strength, durability, and aesthetic appeal make them a popular choice in modern architectural designs. 6. Automotive and Transportation: Stainless steel pipes are used in the automotive industry for exhaust systems, fuel lines, and other components that require resistance to high temperatures and corrosion. They are also used in the transportation of fluids and gases in ships, trains, and airplanes. 7. Pharmaceutical Industry: The pharmaceutical industry requires high-quality materials that meet stringent sanitary standards. Stainless steel pipes are commonly used in pharmaceutical manufacturing processes for transporting liquids, gases, and chemicals due to their cleanability, corrosion resistance, and compatibility with pharmaceutical products. 8. Power Generation: Stainless steel pipes are used in power plants, both conventional and renewable, for various applications such as steam lines, condensers, and heat exchangers. They are chosen for their ability to withstand high temperatures, pressure, and corrosive environments. In summary, stainless steel pipes find applications in a wide range of industries including plumbing, oil and gas, food and beverage, chemical and petrochemical, construction, automotive, pharmaceutical, and power generation. Their corrosion resistance, durability, and ability to handle high temperatures and pressure make them a versatile and reliable choice for various industrial applications.

Q:How are steel pipes insulated to prevent heat loss?: Steel pipes are typically insulated using materials such as fiberglass, foam, or mineral wool. These insulation materials are wrapped around the pipes and securely held in place with tapes or clamps. This insulation layer acts as a barrier, reducing heat transfer and preventing heat loss from the steel pipes.

Q:Can steel pipes be used for heat transfer applications?: Heat transfer applications can utilize steel pipes as they are a great option for transferring thermal energy from one location to another. Steel is known for its excellent heat conductivity, making it a popular choice in heating, ventilation, and air conditioning (HVAC) systems, industrial process heating, and steam distribution networks. The high thermal conductivity of steel ensures efficient heat transfer, effectively distributing heat throughout the system. Moreover, steel pipes possess remarkable strength and durability, enabling them to withstand high temperatures and pressures commonly encountered in heat transfer applications. In summary, steel pipes are a dependable and extensively employed solution for heat transfer purposes.

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