Products
A516GR70 +304L Clad Plate
Product introduction
A516Gr70+304L composite plate is a bimetallic plate made by closely combining A516Gr70 carbon steel and 304L stainless steel. After the two are combined, the composite plate has both the high strength of carbon steel and the corrosion resistance of stainless steel. This material is widely used in the fields of petroleum, chemical industry, pressure vessels, etc., which can effectively reduce costs while meeting the dual requirements of strength and corrosion resistance.
Product features
Excellent Corrosion Resistance
304L stainless steel cladding provides excellent corrosion resistance and is particularly suitable for use in chemical and marine environments. 304L stainless steel has a low carbon content (≤0.03%), which avoids corrosion-prone areas at the grain boundaries, thereby significantly improving the material's corrosion resistance. In an acidic environment, the corrosion rate of 304L stainless steel is as low as 0.1 mm/year, while the corrosion rate of ordinary carbon steel in the same environment can be as high as 1-2 mm/year.
Excellent Mechanical Strength
The A516Gr70 carbon steel base layer has excellent mechanical properties, with a tensile strength ranging from 485-620 MPa and a minimum yield strength of 260 MPa. This high-strength characteristic enables composite panels to withstand operating pressures of up to 25 MPa in industrial equipment, while the tensile strength of ordinary structural steel generally does not exceed 400 MPa, which means that composite panels can provide higher safety in high-pressure environments sex.
Reduce Costs
Compared with all-304L stainless steel plates, the material design of composite plates significantly reduces the use of precious metals by only adding a thin stainless steel layer on the surface (accounting for about 10%-20% of the overall thickness). Because only the parts exposed to the corrosive environment require stainless steel protection, while lower-cost carbon steel can still be used internally. This combination not only provides the required corrosion resistance, but also significantly reduces material costs. Compared with all 304L stainless steel plates, the cost savings can reach 40%-50%.
Long Service Life
Experimental data shows that in high-humidity, high-corrosion industrial environments, the service life of A516Gr70+304L composite panels can reach more than 20 years, while ordinary carbon steel is only 5-8 years. Compared with traditional materials, the service life of composite panels is nearly three times longer, significantly reducing equipment replacement and maintenance costs.
Product applications
In Pressure Vessel Manufacturing
A516Gr70+304L composite plate is suitable for manufacturing pressure vessels in the fields of petroleum, chemical industry, energy, etc., such as storage tanks, heat exchangers, etc.
In Chemical Equipment
A516Gr70+304L composite plate is widely used in reactors, distillation towers, separators and other equipment in the chemical industry.
In Marine Engineering
A516Gr70+304L composite plate is used in shipbuilding, offshore platforms, submarine pipelines and other projects.
In The Energy Industry
A516Gr70+304L composite plate is suitable for heat exchange equipment and storage tanks in nuclear power plants, coal-fired power plants and natural gas facilities.
In Desulfurization And Denitrification Devices
A516Gr70+304L composite plate is widely used in flue gas desulfurization towers and denitrification equipment in power plants and chemical plants.
In The Food And Pharmaceutical Industries
A516Gr70+304L composite plates are suitable for equipment that requires high cleanliness and corrosion resistance, such as food processing tanks, pharmaceutical reaction tanks, etc.
In Pipeline Systems
A516Gr70+304L composite plates are used in pipeline systems that transport corrosive media in industries such as petroleum, natural gas, and chemicals.
FAQs
Q: Can composite plates of different thicknesses be customized?
A: The thickness range of composite plates is usually 6-50 mm, and the thickness of the stainless steel layer can be adjusted to 10%-20% of the total thickness according to demand.
Q: How environmentally friendly are composite plates?
A: Composite plates reduce the use of all stainless steel materials and reduce resource consumption. At the same time, their long-life design reduces waste generation and meets the requirements of sustainable development.
Q: How is the compressive resistance of composite plates?
A: The A516Gr70 base layer provides compressive resistance up to 25 MPa and is suitable for use in high-pressure equipment such as steam containers and gas storage tanks.
Q: What industry applications are composite plates suitable for?
A: Composite plates are widely used in many fields such as petrochemicals, marine engineering, food processing, energy facilities, desulfurization devices, etc., meeting the needs of various working conditions.
Q: How is the corrosion resistance of A516Gr70+304L composite plates?
A: The 304L stainless steel layer has excellent corrosion resistance, especially in acidic and salt spray environments, with a corrosion rate of less than 0.1 mm/year.
Q: How is the structure of the composite plate achieved?
A: A516Gr70+304L composite plate uses metallurgical bonding technology to firmly fuse the 304L stainless steel cladding with the A516Gr70 carbon steel base.
Q: How long is the service life of the composite plate?
A: In a highly corrosive and high-pressure environment, the service life of the A516Gr70+304L composite plate can reach more than 20 years, which is significantly better than ordinary carbon steel materials (5-8 years).
Q: Can the A516Gr70+304L composite plate be processed?
A: The composite plate has good processing performance and can be processed by a variety of processes such as hot pressing, cold bending, cutting and welding.
Q: What should be paid attention to during the transportation and storage of the composite plate?
A: To prevent scratches or contamination on the surface of the stainless steel layer, it is recommended to use a protective film or cushion during transportation and storage, and avoid contact with corrosive media.
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