304H Stainless Steel Coil

304H stainless steel coil is a high-carbon version of the widely used 304 stainless steel grade. Designed for superior strength and excellent resistance to high temperatures, it is an ideal material for applications requiring durability, corrosion resistance, and thermal stability. The increased carbon content enhances its mechanical properties, making it suitable for use in extreme environments.

Key Features

• High Carbon Content: The carbon content of 304H (0.04%-0.10%) improves its strength, particularly in high-temperature environments.
• Excellent Heat Resistance: Performs well in temperatures above 500°C (932°F), making it ideal for heat exchangers and furnace components.
• Superior Corrosion Resistance: Offers excellent resistance to oxidation and general corrosion in a variety of environments.
• Good Weldability & Formability: Can be easily welded and formed, maintaining its structural integrity in different manufacturing processes.
• Durability & Longevity: Provides long-term performance in demanding applications, reducing maintenance and replacement costs.

Technical Specifications

Chemical Composition：

Heat Treatment：

304H stainless steel coil undergoes heat treatment to enhance its mechanical properties and improve high-temperature performance. The recommended heat treatment process includes:

• Solution Annealing: Heating to 1010°C – 1120°C (1850°F – 2050°F), followed by rapid cooling (usually water quenching) to retain corrosion resistance and strength.
• Stress Relieving: Performed at temperatures below 480°C (900°F) to reduce internal stresses without affecting corrosion resistance.
• Avoid Prolonged Exposure: Extended exposure to temperatures between 427°C – 816°C (800°F – 1500°F) can cause carbide precipitation, leading to intergranular corrosion.

Applications：

304H stainless steel coil is widely used in industries that require high-temperature performance and corrosion resistance, such as:

• Petrochemical Industry: Used in refinery equipment and processing plants.
• Power Plants: Ideal for high-temperature piping and heat exchangers.
• Boilers & Pressure Vessels: Suitable for extreme pressure and thermal environments.
• Furnace Components: Performs well in high-temperature industrial heating systems.
• Heat Exchangers: Provides efficient thermal conductivity while resisting corrosion.

Why Choose 304H Stainless Steel Coil?

• Reliable Performance: Maintains strength and resistance in harsh conditions.
• Customizable Options: Available in various thicknesses, widths, and surface finishes to meet specific requirements.
• Industry Compliance: Meets international standards for safety and durability.
• Cost-Effective Solution: Long lifespan reduces operational and maintenance costs over time.