low and medium pressure boiler seamless steel tubes

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 5000 m.t./month

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Packaging & Delivery

Packaging Detail:	in bundle
Delivery Detail:	7 days afer order is confirmed

Specifications

boiler seamless steel tubes
1. fast delivery
2. rich material inventory
3. competitive price

low and medium pressure boiler seamless steel tubes

Pipe Size	1/2"—48" (DN15-1200)
Wall Thickness	SCH10,SCH20,SCH30,STD,SCH40,SCH60,XS,SCH80,SCH100,SCH120, SCH140,SCH160,XXS,DIN, JIS standard thickness
Length	Fixed: 3.0 , 5.8 , 5.85 , 5.9 , 6.0 ,11.8 , 12.0m. Random length: 5-12m
Standard	ASTM A53, A106, API 5L, ASME B36.10M-1996 DIN1626, DIN1629, DIN17175, DIN 2448 JIS G3452,JIS G3454,JIS G3455,JIS G3456,JIS G3457,JIS G3461
Material	Q235, 20#, Q345 A53B, A106B, API 5L B,X42,X46,X52,X60, X65 ST37.0,ST35.8,St37.2,St35.4/8,St42,St45,St52,St52.4 STP G38,STP G42,STPT42,STB42,STS42,STPT49,STS49
Application	Low and middle pressure fluid pipeline, boiler, petroleum and natural gas industry, drilling, chemical industry, electric industry, shipbuilding, fertilizer equipment and pipeline, structure, petrochemical, pharmaceutical industry
Surface	Black painting, varnish paint, anti rust oil, hot galvanized, cold galvanized, 3PE,etc.
Package	Plastic caps on both ends, Steel bundle, Woven bag or acc. to customers' request
Certificate	ISO9001, SGS,BV, etc
Capacity	80000tons/year
Advantages	1.Reasonable price with excellent quality 2.Abundant stock and prompt delivery 3.Rich supply and export experience, sincere service 4.Reliable forwarder, 2-hour away from port.

Applications:

It mainly used for fluid transportation piping, for example oil, natural gas, water, coal gas and steam transporting. Because of the light weight, it also can be widely used in mechanical spare parts and structural parts.

1. Our pipe size

OD: 1/8'' to 48'', nomical thickness :Sch5s to XXS

2.Our pipe including:

ASTM A106 seamless carbon steel pipe

Structure steel pipe

ASTM A179 cold drawn low carbon steel pipe

ASTM A192 steel boiler tubes

ASTM SA213/A519 alloy steel pipe

DIN1629/EN10216-1 Pipe line

DIN17175/EN10216-2 Heat Resisting seamless steel pipe lines

DIN 2391-1 cold drawn or cold rolled steel tube

API SPEC 5CT Tubing and Casing

Q: What are the different methods of repairing steel pipes?: There are several methods for repairing steel pipes, including welding, pipe wrapping, pipe lining, and pipe bursting. Welding involves fusing the damaged sections of the pipe using heat and pressure. Pipe wrapping involves using a fiberglass or epoxy resin wrap to reinforce and seal the damaged areas. Pipe lining involves inserting a new pipe into the damaged one, creating a seamless and corrosion-resistant inner lining. Pipe bursting involves replacing the damaged pipe by using a bursting head to break it apart while simultaneously pulling a new pipe into place. The choice of method depends on the nature and extent of the damage, as well as other factors such as cost and accessibility.

Q: What is the average lifespan of a steel pipe?: The average lifespan of a steel pipe can vary depending on various factors such as its quality, usage conditions, maintenance, and exposure to external factors. However, on average, a properly installed and maintained steel pipe can last anywhere from 20 to 100 years or more.

Q: How are steel pipes transported and stored?: Steel pipes are typically transported using specialized trucks, trains, or ships, depending on the distance and quantity. They are often stacked and secured with straps or chains to prevent movement during transportation. Once at the storage site, steel pipes are usually stored in an organized manner, either horizontally on racks or vertically in designated areas. It is crucial to keep them protected from moisture, corrosion, and physical damage, so they are often covered or stored indoors.

Q: What are the different types of steel pipe fittings?: There are several types of steel pipe fittings, including elbows, tees, couplings, unions, reducers, caps, plugs, and crosses.

Q: What are the different types of pipe connections used with steel pipes?: There are several types of pipe connections commonly used with steel pipes. Some of the most common types include: 1. Threaded connections: These connections involve threading the ends of the pipe and using threaded fittings to connect them. This type of connection is typically used for smaller diameter pipes and is easy to install and dismantle. 2. Welded connections: Welding is a common method used to connect steel pipes. It involves joining the ends of the pipes together by melting the metal and fusing them together. Welded connections are durable and strong, making them suitable for high-pressure applications. 3. Flanged connections: Flanges are used to connect pipes by bolting them together. Flanged connections are commonly used in industrial applications and are often used for larger diameter pipes or when the pipe needs to be easily disassembled for maintenance purposes. 4. Grooved connections: Grooved connections involve using grooved fittings that have grooves on the inside to connect the pipes. These connections are often used in fire protection systems and are quick and easy to install. 5. Compression connections: Compression fittings are used to connect steel pipes by compressing a ferrule onto the pipe. This type of connection is commonly used in plumbing applications and provides a tight and secure seal. 6. Mechanical connections: Mechanical connections, such as couplings or clamps, are used to connect steel pipes without the need for welding or threading. These connections are often used for temporary or emergency repairs. Each type of pipe connection has its advantages and disadvantages, and the choice of connection method will depend on factors such as the application, pipe size, and installation requirements. It is important to carefully consider these factors to ensure a secure and reliable connection for steel pipes.

Q: How are steel pipes used in the manufacturing of wind turbines?: Steel pipes are used in the manufacturing of wind turbines primarily for constructing the tower, which provides structural support and stability to the turbine. These steel pipes are typically large in diameter to withstand the strong winds and carry the weight of the turbine components. Additionally, steel pipes are also utilized for the transmission of electrical cables within the turbine, ensuring efficient power generation.

Q: What are the different international standards for steel pipes?: There are several international standards for steel pipes that are widely recognized and used in the industry. Some of the key standards include: 1. ASTM A53: This standard covers seamless and welded black and hot-dipped galvanized steel pipes. It is commonly used for low-pressure applications such as water, gas, and steam. 2. ASTM A106: This standard covers seamless carbon steel pipes for high-temperature service. It is widely used in refineries, power plants, and petrochemical industries where high pressure and temperature conditions exist. 3. ASTM A312: This standard covers seamless, welded, and heavily cold worked austenitic stainless steel pipes. It is often used for high-temperature and corrosive environments in industries such as chemical processing, food processing, and pharmaceuticals. 4. API 5L: This standard specifies requirements for the manufacture of two product specification levels (PSL1 and PSL2) of seamless and welded steel pipes for use in pipeline transportation systems in the petroleum and natural gas industries. 5. EN 10216: This European standard covers seamless steel pipes for pressure purposes. It is used in various industries such as power generation, chemical, and oil and gas. 6. JIS G3454: This Japanese standard covers carbon steel pipes for pressure service. It is commonly used in the transportation of water, gas, and oil. 7. DIN 2448: This German standard specifies seamless steel pipes for general purposes. It is widely used in various industrial applications. These are just a few examples of the many international standards that exist for steel pipes. Each standard specifies different requirements for manufacturing, dimensions, mechanical properties, and testing to ensure the quality and performance of the pipes in specific applications. It is important for manufacturers, suppliers, and users to understand and comply with the relevant standards to ensure the safe and reliable use of steel pipes.

Q: How do you prevent steel pipes from freezing?: To prevent steel pipes from freezing, there are several measures you can take: 1. Insulate the pipes: Use foam insulation sleeves or wrap the pipes with insulation tape. This will help maintain the temperature of the pipes and prevent them from freezing. 2. Seal any gaps or cracks: Inspect the area around the pipes and seal any gaps or cracks with caulk or expanding foam. This will prevent cold air from entering and freezing the pipes. 3. Install heat cables: Heat cables can be wrapped around the steel pipes to provide a steady source of heat. These cables can be controlled by a thermostat, ensuring that the pipes stay above freezing temperature. 4. Keep the temperature above freezing: In areas where extreme cold weather is common, it is advisable to keep the indoor temperature above freezing, even if the property is vacant. This will help maintain a suitable temperature for the pipes and prevent freezing. 5. Open cabinets and faucets: In particularly cold weather, open cabinet doors in kitchens and bathrooms to allow warm air to circulate around the pipes. Additionally, allowing faucets to drip slightly can also prevent freezing by keeping water flowing. 6. Drain the pipes: If you are leaving your property unoccupied during freezing weather, it is recommended to drain the pipes completely. This can be done by shutting off the main water supply and opening all faucets until no water remains. This minimizes the risk of freezing and potential damage. Remember, prevention is crucial in protecting steel pipes from freezing. By implementing these measures, you can significantly reduce the risk of frozen pipes and potential costly repairs.

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: How are steel pipes repaired if they develop leaks?: Steel pipes can be repaired if they develop leaks through various methods such as welding, clamping, or using epoxy compounds. The specific repair technique depends on the size and location of the leak as well as the type of pipe, and it is typically carried out by trained professionals with the necessary equipment and expertise.

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