Seamless steel pipe ASTM A106/API 5L/ASTM A53 20#
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 m.t.
- Supply Capability:
- 5000 m.t./month
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1. Commodity Name: Seamless steel pipe
2. Standard: API,GB,ASTM,ASME,DIN
3. Quality grade: 10#, 20#, A106B, A53B, API 5L B, Q235, Q345, ST37-2, ST 45, ST52.etc.
4. Dimension:
OD: 1/2"-24"
WT: 2.5-80mm, SCH10~SCH40~XXL
length: 5.8m,6m,8m,9m,12m
5. Technique: Hot Rolled/Cold Rolled/ Cold Drawn
6. application
carbon seamless steel pipes are widely used in gas, water and oil, transpotation;constructions;Bridge,highway,windows of model steel door; building materials;fences;heating facilities Fluid Pipe;conduit pipe,scaffolding pipe.etc.
7. Payment Terms: L/C D/A D/P T/T
8.packing and shipment
Packaged in bundles,as per customers' requirements, it can also bepackagesd as beveled ends, typed marking, black painting, plastic caps protection,woven bags packing
For 20" container the max length is 5.8m; For 40" container the max length is 12m. other options are available based on customer requests. Please discuss when placing orders.
9. Surface: painted with varnish;
10. Plastic caps at ends.
11. Tolerance: OD +1%/-1%
WT +12.5%/-10%
12. Chemical composition:
Models of Steel Pipes | Chemical Component | |||||||
Steel 20 (ASTM A106B) | C | Si | Mn | P | S | Cu | Ni | Cr |
0.17~0.24 | 0.17~0.37 | 0.35~0.65 | 0.035max | 0.035max | 0.25max | 0.25max | 0.25max | |
Steel45 (ASTM 1045) | 0.42~0.50 | 0.17~0.37 | 0.50~0.80 | 0.035max | 0.035max | 0.25max | 0.25max | 0.25max |
16Mn(Q345B) | 0.12~0.20 | 0.20~0.55 | 1.20~1.60 | 0.035max | 0.035max | 0.25max | 0.25max | 0.25max |
45Mn2 ( ASTM1345) | 0.42~0.49 | 0.17~0.37 | 1.40~1.80 | 0.035max | 0.035max | 0.3max | 0.3max | 0.30max |
- Q: How do you cut steel pipes?
- Steel pipes can be cut using various methods such as using a hacksaw, reciprocating saw, angle grinder, or a pipe cutter. The choice of method depends on the thickness and diameter of the pipe, as well as the precision required for the cut.
- Q: How do you calculate the pipe head loss for steel pipes?
- To calculate the pipe head loss for steel pipes, you can use the Darcy-Weisbach equation. This equation relates the head loss (hL) to the flow rate (Q), pipe diameter (D), pipe length (L), fluid density (ρ), fluid velocity (V), and a friction factor (f). The formula is as follows: hL = (f * (L/D) * (V^2))/(2g) Where: - hL is the head loss (measured in meters) - f is the friction factor (dimensionless) - L is the pipe length (measured in meters) - D is the pipe diameter (measured in meters) - V is the fluid velocity (measured in meters per second) - g is the acceleration due to gravity (usually taken as 9.81 m/s^2) The friction factor (f) depends on the Reynolds number (Re) of the flow, which is a dimensionless quantity representing the ratio of inertial forces to viscous forces. The Reynolds number can be calculated as: Re = (ρ * V * D) / μ Where: - Re is the Reynolds number (dimensionless) - ρ is the fluid density (measured in kg/m^3) - V is the fluid velocity (measured in meters per second) - D is the pipe diameter (measured in meters) - μ is the dynamic viscosity of the fluid (measured in Pa·s or N·s/m^2) The friction factor (f) can be obtained from empirical correlations or from Moody's diagram, which relates it to the Reynolds number and the relative roughness of the pipe surface. By substituting the calculated friction factor (f) and other known values into the Darcy-Weisbach equation, you can determine the head loss in the steel pipe. It is important to note that the head loss is a measure of energy loss due to friction and other factors, and it is typically expressed in terms of pressure drop or height difference.
- Q: Can steel pipes be used for underground fire sprinkler systems?
- Yes, steel pipes can be used for underground fire sprinkler systems. Steel pipes are commonly used for their strength and durability, making them suitable for underground installations. However, it is important to ensure that the steel pipes are properly coated or protected against corrosion to maintain their integrity over time.
- Q: Seamless steel tube DN15 specification phi 18*3 what do you mean?
- Seamless steel pipe DN15 specification phi 18*3 refers to 3 outer diameter of 18mm B type DN15 seamless steel tube.
- Q: What is the difference between steel pipes and PEX pipes?
- Steel pipes are made from steel, a durable and strong material, while PEX pipes are made from cross-linked polyethylene, a flexible and lightweight material. Steel pipes are typically used for high-pressure applications, such as plumbing systems in commercial buildings, while PEX pipes are commonly used in residential plumbing due to their ease of installation, resistance to freezing and bursting, and lower cost. Additionally, steel pipes require threading and soldering for connections, while PEX pipes use push-fit or crimp fittings, making them easier to work with.
- Q: What are the thermal properties of steel pipes?
- Steel pipes have excellent thermal properties. They have a high thermal conductivity, which means they can efficiently transfer heat. Additionally, steel pipes have a high melting point, making them suitable for handling high temperatures without any significant deformation or damage.
- Q: What are the advantages of using steel pipes in plumbing systems?
- There are several advantages of using steel pipes in plumbing systems. Firstly, steel pipes are highly durable and can withstand high levels of pressure, making them suitable for carrying water and other fluids. Additionally, steel pipes are resistant to corrosion, which ensures longevity and prevents leaks. Steel pipes also have a smooth interior surface, which improves water flow and reduces the risk of blockages. Moreover, steel pipes are fire-resistant and do not contribute to the spread of flames, enhancing overall safety. Lastly, steel pipes are environmentally friendly as they are often made from recycled materials and can be recycled again at the end of their lifespan.
- Q: How are steel pipes tested for pressure and leakage?
- Steel pipes are tested for pressure and leakage using a variety of methods to ensure their safety and reliability. One common method is hydrostatic testing, where the pipe is filled with water and subjected to a specific pressure for a specified duration. This test helps identify any weaknesses or leaks in the pipe by observing if there is any pressure drop or visible water leakage. The pressure is carefully measured and monitored during the test, and if the pipe successfully withstands the required pressure without any signs of leakage, it is considered to have passed the test. In addition to hydrostatic testing, other non-destructive testing methods may also be employed. These methods include ultrasonic testing, which uses high-frequency sound waves to detect any flaws or defects in the pipe material, and magnetic particle testing, which involves applying a magnetic field to the pipe and inspecting it for any magnetic particles that may indicate cracks or imperfections. Moreover, visual inspection is an essential step in testing steel pipes for pressure and leakage. Trained inspectors examine the exterior and interior surfaces of the pipe to check for any visible signs of damage, such as corrosion, cracks, or faulty welds. This visual inspection helps to identify potential weak points that could lead to leaks or failures under pressure. Overall, a combination of hydrostatic testing, non-destructive testing methods, and visual inspection is used to comprehensively evaluate steel pipes for pressure and leakage. These rigorous testing procedures ensure that the pipes meet the required standards and are safe for their intended applications.
- Q: What is the hardness of steel pipes?
- The specific grade and manufacturing process can cause the hardness of steel pipes to vary. Generally, alloys are used to make steel pipes, which offer a combination of strength and toughness. To determine the hardness of steel pipes, different methods like Rockwell or Brinell hardness tests can be carried out. These tests gauge the steel's resistance to indentation or penetration using a standardized indenter. The hardness of steel pipes is usually represented as a numerical value on a scale, like the Rockwell hardness scale (e.g., HRC or HRB) or the Brinell hardness scale (e.g., HB). The hardness of steel pipes is significant as it indicates their capacity to endure physical stresses, such as pressure, impact, or wear, in various applications such as construction, oil and gas transportation, and manufacturing.
- Q: What is the maximum temperature that steel pipes can handle?
- The maximum temperature that steel pipes can handle depends on the specific grade of steel being used. However, most common steel pipes can withstand temperatures up to around 1000 degrees Celsius (1832 degrees Fahrenheit) without significant structural damage.
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Seamless steel pipe ASTM A106/API 5L/ASTM A53 20#
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 m.t.
- Supply Capability:
- 5000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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