Seamless Ferritic Alloy-Steel Pipe for High-Temperature
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Abstract
This specification covers seamless ferritic alloy-steel pipe for high-temperature service. The pipe shall be suitable for bending, flanging (vanstoning), and similar forming operations, and for fusion welding. Grade P2 and P12 steel pipes shall be made by coarse-grain melting practice. The steel material shall conform to chemical composition, tensile property, and hardness requirements. Each length of pipe shall be subjected to the hydrostatic test. Also, each pipe shall be examined by a non-destructive examination method in accordance to the required practices. The range of pipe sizes that may be examined by each method shall be subjected to the limitations in the scope of the respective practices. The different mechanical test requirements for pipes, namely, transverse or longitudinal tension test, flattening test, and hardness or bend test are presented.
1. Scope
1.1 This specification covers nominal wall and minimum wall seamless ferritic alloy-steel pipe intended for high-temperature service. Pipe ordered to this specification shall be suitable for bending, flanging (vanstoning), and similar forming operations, and for fusion welding. Selection will depend upon design, service conditions, mechanical properties, and high-temperature characteristics.
1.2 Several grades of ferritic steels (see Note 1) are covered. Their compositions are given in Table 1.
Note 1—Ferritic steels in this specification are defined as low- and intermediate-alloy steels containing up to and including 10 % chromium.
1.3 Supplementary requirements (S1 to S7) of an optional nature are provided. These supplementary requirements call for additional tests to be made, and when desired, shall be so stated in the order together with the number of such tests required.
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. The inch-pound units shall apply unless the “M” designation of this specification is specified in the order.
Note 2—The dimensionless designator NPS (nominal pipe size) has been substituted in this standard for such traditional terms as “nominal diameter,” “size,” and “nominal size.”
TABLE 1 Chemical Requirements
A New designation established in accordance with Practice E527 and SAE J1086, Practice for Numbering Metals and Alloys (UNS).
B Grade P 5c shall have a titanium content of not less than 4 times the carbon content and not more than 0.70 %; or a columbium content of 8 to 10 times the carbon content.
C Alternatively, in lieu of this ratio minimum, the material shall have a minimum hardness of 275 HV in the hardened condition, defined as after austenitizing and cooling to room temperature but prior to tempering. Hardness testing shall be performed at mid-thickness of the product. Hardness test frequency shall be two samples of product per heat treatment lot and the hardness testing results shall be reported on the material test report.
2. Referenced Documents (purchase separately)
ASTM Standards
A999/A999M Specification for General Requirements for Alloy and Stainless Steel Pipe
E92 Test Method for Vickers Hardness of Metallic Materials
E213 Practice for Ultrasonic Testing of Metal Pipe and Tubing
E309 Practice for Eddy-Current Examination of Steel Tubular Products Using Magnetic Saturation
E381 Method of Macroetch Testing Steel Bars, Billets, Blooms, and Forgings
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
E570 Practice for Flux Leakage Examination of Ferromagnetic Steel Tubular Products
ASME Standard
B36.10M Welded and Seamless Wrought Steel Pipe
ASTM A335 Seamless Alloy-Steel Pipe
Standard: BS 1139, BS 3059-2, JIS G3454-2007
Grade: 10#-45#, 15NiCuMoNb5, 10Cr9Mo1VNb
Detailed introduction to ASTM A335 seamless alloy steel pipe:
ASTM A335 seamless alloy steel pipe
FAQ:
1) why you chose us ?
Professional Manufacturer and supplier of Steel pipe
More than 14 years’ professional producing experience
We can get the lowest ex-factory prices. The price are quite reasonable and it is lower than our commercial peers. also, we can guarantee the qualities of our products.
BV, ISO certificates and SGS test can be provided to assure the quality of our products.
2) Our minimum order quantity:
10 Metric Tons or one 20ft or 40ft Container.
3) How about the Delivery Time?
The steel pipe will be produced since we getting your deposit by T/T or Your original L/C. For normal size, some stocks in our factory now, we can supply once you need.
4)What kind of payment does your company support?
T/T, 100% L/C at sight, Cash, Western Union are all accepted.
5) Do you charge for the samples?
According to our company principle, we just charge for samples, you pay for the freight /courier charge.
6) Main market:
Mid East, South America, Africa, Southeast Asia, India etc
- Q:How do you clean steel pipes?
- To clean steel pipes, you can follow a few steps: 1. Gather the necessary materials: You will need a pipe cleaning solution, a scrub brush or wire brush, and safety equipment such as gloves and goggles. 2. Prepare the cleaning solution: Dilute the pipe cleaning solution according to the instructions provided on the packaging. Make sure to choose a solution that is suitable for steel pipes. 3. Safety first: Put on your safety equipment to protect yourself from any potential hazards. 4. Remove any debris: Before applying the cleaning solution, remove any loose debris or dirt from the surface of the steel pipes. You can use a brush or a cloth to wipe away any visible particles. 5. Apply the cleaning solution: Dip the brush into the prepared cleaning solution and apply it to the steel pipes. Make sure to cover the entire surface, focusing on any areas with stubborn dirt or grime. 6. Scrub the pipes: Use the brush to scrub the steel pipes thoroughly, applying pressure as needed to remove any buildup or stains. Pay extra attention to joints or areas that are difficult to reach. 7. Rinse with water: Once you have finished scrubbing, rinse the pipes with clean water to remove the cleaning solution and any remaining dirt. You can pour water over the pipes or use a hose if available. 8. Dry the pipes: After rinsing, use a cloth or towel to dry the steel pipes completely. This will help prevent any water stains or corrosion. 9. Inspect for cleanliness: Take a moment to inspect the pipes and ensure they are clean. If there are still areas with stubborn dirt or stains, you may need to repeat the cleaning process or consider using a different cleaning solution. Remember to always follow the manufacturer's instructions when using cleaning solutions and to take proper safety precautions.
- Q:How are steel pipes used in the manufacturing of appliances?
- Steel pipes are commonly used in the manufacturing of appliances for various purposes such as transporting fluids, gases, and air within the appliance, providing structural support, and acting as conduits for electrical wiring. They are also used for creating ventilation systems and heat transfer mechanisms, ensuring efficient operation and durability of appliances.
- Q:What is the difference between steel pipes and copper pipes?
- The main difference between steel pipes and copper pipes lies in their material composition. Steel pipes are made of iron and carbon, while copper pipes are composed of copper metal. Additionally, steel pipes are generally more durable and can withstand higher pressure and temperature levels, making them suitable for industrial applications. On the other hand, copper pipes are more malleable and easily bent, making them ideal for residential plumbing systems. Moreover, copper pipes have better corrosion resistance compared to steel pipes, which may require coatings or treatments to prevent rusting.
- Q:D108*4 what does "D108" mean by seamless steel tubes? What does "*4" mean?
- Seamless steel pipe: a pipe with a hollow cross section, used as a conduit for transporting fluids, such as pipelines for transporting petroleum, natural gas, gas, water, and certain solid materials. Compared withsteel and roundsteelinsolid, flexural torsional strength in the same time, the weight is light, is a kind of economic section steel, widely used in the manufacture of structural parts and mechanical parts, such as the oil pipe, automobile transmission shaft, the bicycle frame and steel construction with scaffold with steel pipe manufacturing ring parts can be improved the utilization rate of materials, simplify the manufacturing process, material saving and working hours, has been widely used to manufacture steel tube.
- Q:What's the difference between stainless steel seamless tube and stainless steel welded pipe?
- Stainless steel seamless steel tube is a kind of steel strip with hollow section and without seams.
- Q:How are steel pipes used in the agriculture industry?
- Steel pipes are used in the agriculture industry for various purposes such as irrigation systems, drainage systems, and livestock handling equipment. They provide a durable and reliable solution for transporting water, nutrients, and effluents, ensuring efficient and effective operations in farm settings.
- Q:What is the fire rating of steel pipes?
- Several factors determine the fire rating of steel pipes. Steel possesses inherent fire resistance due to its high melting point and low thermal conductivity. However, the fire rating of steel pipes can be further improved by employing fire-resistant coatings or insulation materials. These additional measures can offer different levels of fire protection, typically quantified by how long the pipes can retain their structural integrity during a fire situation. The precise fire rating of steel pipes may differ depending on the thickness and type of coating or insulation employed. To ascertain the appropriate fire rating requirements for specific applications, it is crucial to refer to industry standards, such as those established by organizations like the National Fire Protection Association (NFPA), or consult with fire safety professionals.
- Q:Are steel pipes suitable for use in coastal areas?
- Yes, steel pipes are suitable for use in coastal areas. Steel is highly resistant to corrosion and can withstand the harsh environmental conditions typically found in coastal regions, such as saltwater spray and high humidity. Additionally, steel pipes offer excellent structural strength, making them well-suited for various applications including marine construction, offshore oil and gas platforms, and coastal infrastructure projects.
- Q:Are steel pipes suitable for underground sewage systems?
- Yes, steel pipes are suitable for underground sewage systems. They are durable, strong, and resistant to corrosion, making them a reliable choice for carrying sewage underground. Additionally, steel pipes have a long lifespan and can withstand the pressure and weight of the surrounding soil, making them a suitable option for underground sewage systems.
- Q:How are steel pipes measured and categorized?
- Steel pipes are typically measured and categorized based on their outer diameter (OD) and wall thickness. The OD is measured in inches or millimeters, while the wall thickness is measured in inches or centimeters. Pipes are further categorized based on their schedule, which refers to the wall thickness and determines the pressure rating of the pipe. The schedule is denoted by a letter or number, such as Schedule 40 or Sch 80. These measurements and categorizations help in selecting the appropriate steel pipe for different applications and ensure compatibility with fittings and other components.
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Seamless Ferritic Alloy-Steel Pipe for High-Temperature
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 kg
- Supply Capability:
- 10000 kg/month
OKorder Service Pledge
OKorder Financial Service
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