ASTM A949 S31803 S31500 S32550 S31200 S31260 Spray-Formed Seamless Ferritic Stainless Steel Pipe for General Purpose
Material
ASTM A949 specifies the requirements for spray-formed seamless ferritic stainless steel pipes. These pipes are designed for general-purpose applications where corrosion resistance and mechanical strength are essential. The spray-forming process enhances the material properties, making it suitable for various industrial applications.
Specification
The specification covers the following grades:
- S31803
- S31500
- S32550
- S31200
- S31260
These grades are characterized by their unique chemical compositions and mechanical properties, making them suitable for different environments and applications.
Key Features
- Corrosion Resistance: Excellent resistance to pitting and crevice corrosion.
- High Strength: Enhanced mechanical properties due to the spray-forming process.
- Versatility: Suitable for a wide range of applications in various industries.
- Seamless Construction: Provides uniformity and reliability in performance.
Chemical Composition
| Grade | C (%) | Cr (%) | Ni (%) | Mo (%) | N (%) | Fe (%) |
| S31803 | 0.03 | 22.0-23.0 | 4.5-6.5 | 3.0-3.5 | 0.08-0.2 | Balance |
| S31500 | 0.03 | 18.0-20.0 | 8.0-10.0 | 0.0-0.5 | 0.0-0.2 | Balance |
| S32550 | 0.03 | 24.0-26.0 | 6.0-8.0 | 3.0-4.0 | 0.0-0.2 | Balance |
| S31200 | 0.03 | 18.0-20.0 | 0.0-0.5 | 0.0-0.5 | 0.0-0.2 | Balance |
| S31260 | 0.03 | 20.0-22.0 | 0.0-0.5 | 2.0-3.0 | 0.0-0.2 | Balance |
Mechanical Properties
| Grade | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) | Hardness (HB) |
| S31803 | ≥ 450 | ≥ 620 | ≥ 25 | ≤ 290 |
| S31500 | ≥ 290 | ≥ 550 | ≥ 30 | ≤ 200 |
| S32550 | ≥ 480 | ≥ 650 | ≥ 25 | ≤ 300 |
| S31200 | ≥ 240 | ≥ 520 | ≥ 30 | ≤ 190 |
| S31260 | ≥ 310 | ≥ 600 | ≥ 30 | ≤ 220 |
Steel Grade
The steel grades specified in ASTM A949 are designed to meet specific mechanical and chemical property requirements, ensuring their suitability for various applications in industries such as oil and gas, chemical processing, and power generation.
Application
These spray-formed seamless ferritic stainless steel pipes are widely used in:
- Oil and gas exploration and production
- Chemical processing plants
- Power generation facilities
- Marine applications
- Wastewater treatment
Possible Alternative Grades
While ASTM A949 grades are suitable for many applications, alternative grades may be considered based on specific requirements:
- AISI 304: General-purpose stainless steel with good corrosion resistance.
- AISI 316: Offers better corrosion resistance than 304, especially in chloride environments.
- Duplex Stainless Steels: Such as S32205, which provide higher strength and improved corrosion resistance.
TORICH Group, an one-stop service provider of raw materials engaged in raw material production, R&D and
trade, has 30+ years of experience in the market, exported to 56 +countries, and won good reputation and
credibility among domestic and foreign customers.
The company's production plant covers an area of over 10,000 square meters, with an annual production
capacity of 50,000 tons of materials and a comprehensive trading and warehousing capacity of 100,000 tons, which can satisfy customers' personalized needs for raw materials in terms of diversity and timeliness.
The group holds shares in more than ten domestic production entities, whose main products include
seamless steel pipes ( carbon steel and stainless steel), welded pipes ( carbon steel and stainless steel), pipe fittings ( carbon steel and stainless steel), titanium (titanium tubes, titanium rods, titanium cakes, titanium plates, etc.), aluminum (aluminum tubes, aluminum rods, aluminum die casting, aluminum casting, CNC machining), and CNC deep processing of metal materials such as tubes, rods, and casting parts.
Over the past 30 years, the company has been gradually developing new technologies and materials to meet
the growing needs of customers and various diversified needs, exporting to more than 56 countries and still
increasing the number of exporting countries, aiming to help customers to solve the demand for raw materials, and to facilitate one-stop purchasing for customers.
Q: Are you trading company or manufacturer ?
A: manufacturer,also can do trading.
Q: How long is your delivery time?
A: Generally speaking,it is 10-15 days if the goods are in stock,or it is 30-40 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples? is it free or extra ?
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact with me.
