SPIRAL WELDED STEEL PIPE 12‘’ 36‘’ 48‘’ CARBON
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 5 m.t
- Supply Capability:
- 3000 m.t/month
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Packaging & Delivery
Packaging Detail: | standard export packing or as customer's requirement |
Delivery Detail: | within 10 - 30 days |
Specifications
Spiral Welded Steel Pipes and Tubes
1.Material:Q195-Q235
2.Length:1-12m
3.WT:1.0-14mm
4.O.D.:20-273mm
Spiral Welded Steel Pipes and Tubes
Product Description:
1.Material : Q235,Q345,L245,L290,L360,L415,L450,L485,GrB,X42,46,X52,X56,X60,X65,X70,X80,X100
2,Standard: SY/T5037-2000,GB/T9711-2011,API Spec 5L PSL1/PSL2,ASTM A252\A53,ISO3183,DIN17172,EN10217,JIS G3457,AWWA C200,ASTM A139,ASTM A671,ASTM A672
3.Wall thickness: 3.0mm-30mm
4.Outer diameter: φ168mm-3020mm
5,Length: 5m-12m or as your requirement
6,Corrosion protection standard: DIN30670,DIN30671, AWWAC210, AWWA C203, SY/T0413-2002,SY/T0414-2002
7,Application: Oil, gas, natural gas, water pipe, thermal electricity pipe, steel structure engineering, etc
Q195-q345 Material Steel Pipe's Materials
Elements | Chemical Compsition% | Mechanical Property | ||||||
C% | Mn% | S% | P% | Si% | Yield Point (Mpa) | Tensile Strength(Mpa) | Elongation | |
Q195 | 0.06-0.12 | 0.25-0.50 | <0.050< span=""> | <0.045< span=""> | <0.030< span=""> | >195 | 315-430 | 32-33 |
Q215 | 0.09-0.15 | 0.25-0.55 | <0.05< span=""> | <0.045< span=""> | <0.030< span=""> | >215 | 335-450 | 26-31 |
Q235 | 0.12-0.20 | 0.30-0.70 | <0.045< span=""> | <0.045< span=""> | <0.030< span=""> | >235 | 375-500 | 24-26 |
Q345 | <0.20< span=""> | 1.0-1.6 | <0.040< span=""> | <0.040< span=""> | <0.55< span=""> | >345 | 470-630 | 21-22 |
Packaging & Delivery
Packaging Detail: | Normal exporting packing,in container or bulk vessel or as per clients' request |
Delivery Detail: | 2 months after confimed contract |
Specifications
Large Diameter API 5L X70 PSL2 LSAW Steel Pipe
Grade: X42, X46, X50, X52, X60, B, C
OD: 1.5"-28"
WT: SCH10-SCH160
Brand:TPCO
Large Diameter API 5L X70 PSL2 LSAW Steel Pipe
Specifications:
u Standard: API 5L
u Grade: B, C, X42, X46, X50, X52, X56, X60, X65, X70, X80
u OD: 1.5"-28"
u WT: SCH10-SCH160
u Length: 5-12m
u Ends Finish: plain end, bevel end, grooved end
u Surface Treatment: bare, black varnished, oiled finish, red color, anti-corrosion, 3PE, FBE or epoxy coating
u Technique: hot rolled or cold drawn
u Application: api 5l steel pipe for conveying oil, water, gas
u Invoicing: based on theoretical weight or actual weight
u Payment Terms: L/C at sight, T/T or Western Union
u Trade Terms: FOB, CFR, CIF
u Certification: ABS manufacturing assessment, ABS design assessment, API 5CT, API 5L, DNV manufacturer certificate, ISO9001 quality management system certificate, ISO14001 environment management system certificate, GB/T28001 occupational health and safety management system certificate, A1 class manufacturing license of special equipment certificate, CCS, GL, LR, SGS, TüV, PDE
- Q: What are the different methods of pipe protection for steel pipes?
- Steel pipes can be protected in various ways, each with its own purpose and level of defense. Some commonly used methods include: 1. Coatings: To shield steel pipes from corrosion and environmental factors, coatings are applied to the outer surface. These can be paints, epoxies, or polymers that create a barrier between the pipe and its surroundings, preventing contact with corrosive elements. 2. Wrapping: Another method involves using materials like tape or shrink wrap to cover the steel pipe, providing a physical barrier against moisture, chemicals, and corrosive substances. Wrapping is often combined with coatings to enhance protection. 3. Cathodic Protection: This electrochemical method safeguards steel pipes from corrosion by connecting them to a sacrificial anode, typically made of zinc or magnesium. The anode corrodes instead of the pipe, preventing deterioration. It is commonly used for buried or submerged pipelines. 4. Thermal Insulation: Steel pipes exposed to extreme temperatures can be protected with thermal insulation. Materials like foam or mineral wool are applied around the pipe to minimize heat transfer. This is particularly important for pipes carrying hot fluids or in harsh weather conditions. 5. Vibration Dampening: Vibrations can damage steel pipes by causing stress and fatigue. To counter this, techniques like vibration damping pads or supports and clamps can be used. These methods absorb and dissipate the energy generated by vibrations, reducing the risk of pipe failure. 6. Concrete Coating: For pipelines installed underwater or in highly corrosive environments, concrete coating is often employed. A layer of concrete or cement-based mortar is applied to the steel pipe, providing both mechanical protection and resistance to corrosion. Choosing the appropriate method of pipe protection depends on the specific application, environmental conditions, and desired level of defense. Regular inspection and maintenance are also crucial in maintaining the long-term integrity of steel pipes.
- Q: How are steel pipes used in the food processing industry?
- Steel pipes are commonly used in the food processing industry for various purposes such as conveying liquids, gases, and solids, as well as for structural support. They are used to transport ingredients, such as water, oils, and other liquids, from one area to another within the food processing plant. Steel pipes are also utilized for the distribution of compressed air or steam, which are essential for cooking, sterilization, and cleaning processes. Additionally, steel pipes are employed in the construction of equipment and machinery, providing a sturdy and reliable framework for various food processing operations.
- Q: How do you calculate the pipe volume for steel pipes?
- In order to determine the volume of a steel pipe, one must possess knowledge regarding its length and the inner diameter. The formula for calculating the volume of a cylindrical shape, such as a pipe, is V = πr^2h, where V denotes the volume, π represents a mathematical constant which is approximately equivalent to 3.14159, r signifies the radius of the pipe (which is half of the inner diameter), and h stands for the length of the pipe. Initially, employ a measuring tape or a caliper to measure the inner diameter of the pipe. Proceed to divide this value by 2 in order to obtain the radius. Afterwards, proceed to measure the length of the pipe, utilizing inches, feet, or meters. Ensure that the same unit of measurement is used for both the radius and length. Once the measurements for the radius and length have been ascertained, input them into the formula V = πr^2h. For instance, let us assume that the inner diameter of the steel pipe measures 10 inches and the length amounts to 50 feet. Firstly, divide the inner diameter by 2 to determine the radius: 10 / 2 = 5 inches. Next, convert the length into inches: 50 feet * 12 inches/foot = 600 inches. Subsequently, input the values into the formula: V = 3.14159 * 5^2 * 600. By calculating the volume: V = 3.14159 * 25 * 600 = 47,123.85 cubic inches. Therefore, the volume of the steel pipe is approximately 47,123.85 cubic inches.
- Q: What is the diameter of the steel tube DN20?
- Stress: the nominal diameter is not the outer diameter of the pipe, nor the inner diameter of the tube. It is not the average value of the inside and outside diameter (the nominal diameter of the equipment refers to the outer diameter).
- Q: What is the difference between cast iron and steel pipes?
- Cast iron pipes and steel pipes are commonly used in plumbing and construction, but they have distinct differences. Let's explore these disparities. 1. Composition: Cast iron pipes consist mainly of an iron alloy, with small amounts of carbon and other elements. Conversely, steel pipes are primarily composed of iron, but they also contain varying amounts of carbon and other alloying elements like manganese, chromium, and nickel. 2. Strength: Steel pipes generally surpass cast iron pipes in strength due to their higher carbon content and alloying elements. This makes steel pipes more suitable for high-pressure applications or areas with heavy loads. 3. Flexibility: Compared to cast iron pipes, steel pipes offer more flexibility, making installation and adjustment easier. Cast iron pipes, being brittle, are less flexible and more prone to cracking or breaking under excessive stress or impact. 4. Corrosion resistance: Steel pipes are usually more prone to corrosion than cast iron pipes. However, this can be mitigated with various protective coatings or treatments applied to the steel pipes. Cast iron pipes, on the other hand, possess inherent corrosion resistance due to the formation of a protective layer of rust on their surface. 5. Noise insulation: Cast iron pipes excel in noise insulation due to their dense and heavy composition. This makes them ideal for reducing noise in residential plumbing systems. Steel pipes, being lighter and less dense, do not offer the same level of noise insulation. 6. Longevity: When properly maintained, cast iron pipes have a lifespan of over 100 years. Steel pipes, while still durable, may have a shorter lifespan depending on factors like the quality of the steel used, environmental conditions, and maintenance practices. In conclusion, the primary differences between cast iron and steel pipes lie in their composition, strength, flexibility, corrosion resistance, noise insulation, and longevity. The choice between the two depends on specific requirements, such as desired strength, durability, and noise reduction properties.
- Q: What are the different types of joints used to connect steel pipes?
- There are several types of joints commonly used to connect steel pipes, including threaded joints, welded joints, flanged joints, and grooved joints.
- Q: How are steel pipes repaired in case of damage?
- Steel pipes can be repaired in case of damage through various methods such as welding, patching, or using clamps. The specific repair technique depends on the type and extent of the damage.
- Q: How are steel pipes used in seaport infrastructure?
- Steel pipes are extensively used in seaport infrastructure for various purposes such as constructing piers, offshore platforms, and docking facilities. They are commonly used for building underwater foundations, pilings, and support structures that provide stability and strength to the port infrastructure. Steel pipes are also used in the construction of pipelines, drainage systems, and water supply networks within the seaport, ensuring efficient transportation of goods and materials. Overall, steel pipes play a crucial role in maintaining the structural integrity and functionality of seaport infrastructure.
- Q: What are the standard dimensions and weight of steel pipes?
- The standard dimensions and weight of steel pipes can vary depending on the specific type and grade of steel pipe being used. However, common standard dimensions for steel pipes include sizes ranging from 1/8 inch to 48 inches in diameter, with wall thicknesses ranging from Schedule 5 to Schedule 160. As for weight, it also depends on the diameter and wall thickness, but a general guideline is that a 1-inch diameter steel pipe with a 1/4 inch wall thickness weighs approximately 1.02 pounds per foot. It is important to note that these dimensions and weights can vary based on the specific standards and requirements set by different industries and applications.
- Q: How are steel pipes used in the petrochemical industry?
- Steel pipes are extensively used in the petrochemical industry for various applications such as transporting oil, gas, and other fluids. These pipes are highly durable and can withstand high pressure and extreme temperatures, making them ideal for the harsh conditions in petrochemical plants. Additionally, steel pipes are resistant to corrosion, ensuring the safe and efficient transportation of chemicals. They are also used for structural support and as conduits for electrical wiring in petrochemical facilities. Overall, steel pipes play a crucial role in the petrochemical industry by enabling the safe and reliable transportation of fluids and providing structural integrity.
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SPIRAL WELDED STEEL PIPE 12‘’ 36‘’ 48‘’ CARBON
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 5 m.t
- Supply Capability:
- 3000 m.t/month
OKorder Service Pledge
OKorder Financial Service
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