Duplex Stainless Steel Composite Plate - High-Performance Bimetallic Solution
Duplex stainless steel composite plate from Baoji City ShenAo Metal Materials Co., Ltd. combines corrosion-resistant duplex steel (S31803/S32205) with structural carbon steel through advanced explosive welding technology. Our plates deliver bonding strength ≥ 350MPa, with cladding thickness from 2mm to 10mm and base thickness up to 150mm. Maximum width reaches 4000mm with customizable length. Backed by 17 years of manufacturing expertise since 2008, we reduce your project costs by 30-50% while maintaining superior chloride resistance and structural integrity. This proven solution serves hundreds of partners across oil & gas, marine, and chemical processing industries.
What Makes Our Composite Plates Different?
You confront a consistent challenge: adjusting execution with budget. Conventional strong duplex plates expend over the top expensive alloying components. Our item understands this precisely.
We bond a lean duplex stainless steel layer to a solid carbon steel base. This gives you the erosion resistance you require at the surface. In the interim, the carbon steel underneath gives basic quality and warm steadiness. You get both benefits without paying for strong combination construction.
The duplex cladding highlights austenitic-ferritic microstructure. This dual-phase structure stands up to setting and stretch erosion splitting distant superior than 304 stainless steel. Your hardware withstands chloride-rich situations, acidic media, and high-temperature chemical reactions.
Our hazardous welding makes metallurgical bonds surpassing 350MPa. This isn't fair mechanical connection. The materials meld at the nuclear level. Your composite plate performs as a single, bound together structure.
![]() |
![]() |
![]() |
![]() |
Technical Specifications
|
Parameter
|
Specification
|
|
Cladding Material
|
S31803, S32205, S32750 Duplex Stainless Steel
|
|
Base Material
|
Q345R, SA516 Gr.70 Carbon Steel / Low-alloy Steel
|
|
Cladding Thickness
|
2mm – 10mm
|
|
Base Thickness
|
10mm – 150mm
|
|
Maximum Width
|
Up to 4000mm
|
|
Length
|
Customized to project requirements
|
|
Bonding Strength
|
≥ 350MPa
|
|
Corrosion Resistance
|
Excellent in chloride and acidic environments
|
|
Tensile Strength
|
≥ 620MPa
|
|
Manufacturing Process
|
Explosive Welding Technology
|
Where You Can Apply This Material?
Oil & Gas Refining: Your desalter vessels and atmospheric distillation units face high chloride concentrations and H2S. Our plates resist stress corrosion cracking without the cost of solid alloy construction. You extend equipment lifespan while controlling capital expenditure.
Marine & Desalination: Multi-stage flash evaporators and offshore platform splash zones demand long-term seawater resistance. Our duplex stainless steel composite plate withstands biofouling and continuous chloride exposure. Your infrastructure operates reliably in the harshest marine conditions.
Chemical Processing: Reactors and storage tanks for pulp, paper, and fertilizer production require robust corrosion-resistant interiors. The duplex cladding handles organic acids and high-temperature reactions. The carbon steel base provides structural support for large vessels and pressure containment.
Pressure Vessels: When you need both strength and corrosion protection, composite plates reduce weight and thickness. You achieve the same performance standards with lighter, more cost-effective solutions.
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
Product production process

Why Partner With Baoji ShenAo?
17 Years of Proven Experience: Since 2008, we've manufactured bimetallic composites in China's Titanium Valley. Our location gives us access to superior raw materials and advanced processing capabilities. You benefit from our accumulated knowledge and refined production methods.
Customization for Your Specific Needs: We understand that standard sizes rarely fit complex industrial projects. Our engineering team works with your specifications. We customize dimensions, cladding ratios, and base materials to match your exact technical requirements.
Strict Quality Assurance: Every plate undergoes ultrasonic testing to verify bond integrity. We inspect shear strength, corrosion resistance, and metallurgical properties. You receive documentation confirming compliance with ASTM A264 and relevant industry standards.
Reliable Delivery Schedule: We maintain production capacity for both testing batches and large-scale orders. Our supply chain management ensures timely delivery. You can plan your project timeline with confidence.
|
|
|
|
|
|
|
|
|
Application Industries
|
|
|
|
|
|
|
|
Our Factory
Our Patents and Honors
Our Packaging
|
|
|
|
|
|
|
|
|
|
Frequently Asked Questions
Q: What holding quality can I anticipate from your composite plates?
A: Our plates reliably accomplish holding quality ≥ 350MPa, altogether surpassing the ASTM A264 least necessity of 137 MPa. This guarantees basic astuteness beneath mechanical push and warm cycling.
Q: Can I weld these plates utilizing standard procedures?
A: You'll require specialized move welding methods. We utilize stainless steel, carbon steel, and in some cases nickel-based terminals in grouping. This avoids carbon movement and keeps up the cladding's erosion resistance. We give nitty gritty welding method details with your order.
Q: How does unstable welding protect the duplex steel's properties?
A: Our controlled unstable holding happens quickly, restricting warm input. We take after with appropriate arrangement strengthening and extinguishing. This reestablishes the duplex microstructure and erosion resistance. You get plates with full fabric performance.
Q: What's the ordinary cladding-to-base thickness ratio?
A: We regularly apply cladding at 10-20% of add up to plate thickness. For case, a 30mm plate might have 3-5mm duplex cladding. We alter this proportion based on your erosion prerequisites and mechanical loads.
Q: Do you give fabric certifications?
A: Yes. Each shipment incorporates process test certificates, ultrasonic test reports, and shear quality information. We archive chemical composition, mechanical properties, and bond quality for your quality affirmation records.
Q: How much can I spare compared to strong duplex plates?
A: You ordinarily diminish fabric costs by 30-50%. The correct investment funds depend on current combination costs and your required thickness. We moreover decrease utilization of nickel and molybdenum by up to 70%, making your venture more feasible.
Get Your Custom Quote Today
Ready to reduce costs while maintaining performance with Duplex stainless steel composite plate? Contact our technical team at zh@baojiti.com.cn to discuss your project requirements and receive a detailed quotation.
YOU MAY LIKE















































