Hot Rolled and Explosive Bonding Stainless Steel Clad Plate for Pressure Vessel A240 316L SA516 Gr.70N EN10204 TYPE 3.2

Explosive Bonding of Stainless Steel A240 316L and Steel SA516 Gr.70N for Clad Metal Plate

Q345R+316L  44+3MM EXPLOSIVE WELDING 

Carbon steel and stainless steel clad plate can be made by explosive welding or hot rolled process.

EN10204 TYPE 3.2 available.

Short delivery time within 50days.

Supported by steel mills with the fast delivery.

1. Introduction
   Explosive bonding is a specialized technique used to combine different metals. In this case, it involves joining stainless steel A240 316L and steel SA516 Gr.70N to form a clad metal plate.
2. Stainless Steel A240 316L

• Stainless steel A240 316L is a well - known austenitic stainless steel. It is highly regarded for its excellent corrosion resistance properties. In particular, it performs outstandingly in environments containing chloride - based corrosive media. Chemically, it contains elements such as chromium (Cr), nickel (Ni), and molybdenum (Mo). The chromium content typically ranges from 16 - 18%, the nickel content is around 10 - 14%, and the molybdenum content is approximately 2 - 3%. These chemical components endow 316L with remarkable resistance to pitting corrosion, crevice corrosion, and stress - corrosion cracking. It is widely used in various fields, including the chemical industry, food processing, pharmaceutical manufacturing, and marine engineering, for fabricating corrosion - resistant equipment and components.

3. Steel SA516 Gr.70N

• Steel SA516 Gr.70N is a carbon steel plate primarily used for medium - and low - temperature pressure vessels. It has good strength and toughness, enabling it to withstand certain pressures. Its chemical composition mainly consists of carbon (C), manganese (Mn), silicon (Si), etc. Through appropriate heat treatment, it can achieve excellent mechanical properties. This type of steel is commonly employed in the manufacturing of pressure vessels, storage tanks, and other equipment in the petroleum and chemical industries.

4. Explosive Bonding Process

• Explosive bonding is a solid - state welding method. During the explosive bonding process, the high - energy shock wave generated by the detonation of explosives causes two different metal plates to collide at high speed and bond instantaneously.
• For the combination of stainless steel A240 316L and steel SA516 Gr.70N, explosives are placed on the side of the stainless steel plate. When the explosive is detonated, the resulting shock wave propels the stainless steel plate to impact the SA516 Gr.70N steel plate at an extremely high velocity. At the interface of the impact, the oxide films and other impurities on the metal surfaces are shattered and removed. Simultaneously, under tremendous pressure, the atoms of the two metals diffuse and bond with each other at the interface, forming a firm metallurgical bond.

5. Characteristics and Applications of the Clad Metal Plate

• Characteristics
  • High Bonding Strength: The composite interface formed through explosive bonding has a very high bonding strength, ensuring that the two metals will not separate during subsequent processing and use.
  • Good Overall Performance: It combines the corrosion resistance of stainless steel 316L and the strength characteristics of SA516 Gr.70N, making the clad plate have both good anti - corrosion ability and the ability to withstand certain pressures and loads.
  • Cost - saving: Compared to an all - stainless - steel structure, it can reduce the amount of expensive stainless steel material used while meeting the corrosion - resistance requirements, thereby reducing costs.
• Applications
  • It is widely used in the manufacturing of pressure vessels, reactors, and other equipment in the chemical and petroleum industries. For example, in some chemical reaction vessels that require both corrosion resistance and the ability to withstand certain pressures, using this clad metal plate can effectively improve the service life and performance of the equipment while meeting economic requirements.

Series of clad plates: