ASTM A451 CPF3 CPF3A CPF3M CPF8 CPF8A Stainless Steel Tube Centrifugally Cast Austenitic Stainless Steel Pipe For High-Temperature Service
Material
ASTM A451 is a specification for austenitic stainless steel pipes that are centrifugally cast. These pipes are designed for high-temperature service, making them suitable for various industrial applications. The grades covered under this specification include CPF3, CPF3A, CPF3M, CPF8, and CPF8A.
Specification
The specification outlines the requirements for the chemical composition, mechanical properties, and manufacturing processes of the stainless steel pipes. These pipes are primarily used in environments where high temperatures and corrosive conditions are present.
Key Features
- High-Temperature Resistance: Designed to withstand elevated temperatures without losing structural integrity.
- Corrosion Resistance: Excellent resistance to oxidation and corrosion in harsh environments.
- Versatile Applications: Suitable for various industries, including petrochemical, power generation, and food processing.
- Centrifugal Casting: Provides uniformity in wall thickness and enhanced mechanical properties.
Chemical Composition
| Grade | C (%) | Mn (%) | P (%) | S (%) | Si (%) | Cr (%) | Ni (%) | Mo (%) |
| CPF3 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.00 | 8.00 | 0.00 |
| CPF3A | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.00 | 8.00 | 0.00 |
| CPF3M | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.00 | 8.00 | 2.00 |
| CPF8 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 20.00 | 10.00 | 0.00 |
| CPF8A | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 20.00 | 10.00 | 2.00 |
Mechanical Properties
| Grade | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) | Hardness (HB) |
| CPF3 | 205 | 515 | 40 | 170 |
| CPF3A | 205 | 515 | 40 | 170 |
| CPF3M | 205 | 515 | 40 | 170 |
| CPF8 | 205 | 515 | 40 | 170 |
| CPF8A | 205 | 515 | 40 | 170 |
Steel Grade
The steel grades specified in ASTM A451 are designed to meet the stringent requirements of high-temperature applications. Each grade has unique properties that make it suitable for specific environments.
Application
The ASTM A451 stainless steel pipes are widely used in:
- Petrochemical Industries: For transporting corrosive fluids at high temperatures.
- Power Generation: In boiler systems and heat exchangers.
- Food Processing: Where hygiene and corrosion resistance are critical.
- Chemical Processing: For handling aggressive chemicals.
Possible Alternative Grades
While ASTM A451 grades are specifically designed for high-temperature service, alternative grades may include:
- ASTM A312: Standard specification for seamless and welded austenitic stainless steel pipes.
- ASTM A213: Specification for seamless ferritic and austenitic alloy-steel boiler, superheater, and heat-exchanger tubes.
- ASTM A240: Standard specification for chromium and chromium-nickel stainless steel plate, sheet, and strip for pressure vessels and for general applications.
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Q: Are you trading company or manufacturer ?
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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.
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