A240/SUS 321H stainless steel plate is a high carbon version of the 321 stainless steel, renowned for its exceptional high-temperature strength, corrosion resistance, and weldability. It is specifically designed to withstand elevated temperatures without compromising its structural integrity.

Physical Properties:

A240/SUS 321H stainless steel plate exhibits a density of approximately 7.9 g/cm³, providing robust strength while maintaining a relatively lightweight profile. It has a melting point of around 1400-1450°C and a thermal conductivity of approximately 16.2 W/m·K.

Size Range:

Available in various sizes and thicknesses, A240/SUS 321H stainless steel plate typically ranges from 0.3 mm to 100 mm in thickness. Widths can extend up to 2000 mm, and lengths can reach up to 6000 mm, catering to diverse application requirements.

Chemical Composition:

The typical chemical composition of A240/SUS 321H stainless steel plate includes:

- Chromium (Cr): 17.0-19.0%

- Nickel (Ni): 9.0-12.0%

- Carbon (C): 0.04-0.10%

- Manganese (Mn): ≤2.0%

- Silicon (Si): ≤1.0%

- Phosphorus (P): ≤0.045%

- Sulfur (S): ≤0.030%

- Titanium (Ti): 5(C+N) min, 0.70 max

Mechanical Properties:

- Tensile Strength: ≥515 MPa

- Yield Strength: ≥205 MPa

- Elongation: ≥40%

These robust mechanical properties ensure excellent performance, especially in high-temperature environments.

Hardness:

A240/SUS 321H stainless steel plate typically exhibits a Rockwell hardness of approximately B90.

Standard Compliance (ASTM A240, JIS G4304):

A240/SUS 321H stainless steel plate complies with international standards such as ASTM A240 and JIS G4304, ensuring quality and consistency in production.

Non-Destructive Testing Standard:

Standard non-destructive testing methods, including ultrasonic inspection, are employed to ensure the quality and integrity of A240/SUS 321H stainless steel plates.

Corrosion Resistance:

A240/SUS 321H stainless steel offers excellent corrosion resistance, even in high-temperature and corrosive environments. It is resistant to intergranular corrosion and can withstand exposure to acidic and chloride-rich environments.

Heat Treatment Condition:

A240/SUS 321H stainless steel plate can be annealed at temperatures ranging from 1010 to 1120°C, followed by rapid cooling. This process helps improve its high-temperature strength and corrosion resistance.

Main Applications:

- Aerospace: Used in aircraft components, exhaust systems, and engine parts.

- Petrochemical Industry: Employed in piping systems, heat exchangers, and refinery equipment.

- Chemical Processing: Utilized in reactors, storage tanks, and processing equipment.

- Automotive: Found in exhaust manifolds and catalytic converters.

- Food and Beverage: Used in equipment for food processing and storage.

TJC Steel Supply Case:

TJC Steel (TJC Iron & Steel(Group) Co., Limited) is a leading supplier of A240/SUS 321H stainless steel plates, adhering strictly to international standards like ASTM A240 and JIS G4304. They provide reliable solutions for various high-temperature and corrosive applications across industries, ensuring the highest quality standards are met.