Baoji Ruihenghua Titanium Metal Composite New Materials Co., Ltd. is one of the leading manufacturers and suppliers of nickel steel explosion composite plate in China. If you're going to buy customized nickel steel explosion composite plate made in China, welcome to get more information from our factory. For price consultation, contact us.
Product Introduction
Nickel steel explosion composite plates are specialized bimetallic metallurgical composite plates for strong alkali resistance, manufactured using a high-energy explosion cold welding process. The entire production process adheres to the ASTM A265 international standard for nickel and nickel-based alloy composite steel plates. The nickel cladding and steel base achieve a complete metallurgical bond without brittle intermetallic compounds, with interfacial bonding strength far exceeding the mandatory requirements of international standards. The product combines the excellent resistance to concentrated alkalis, high temperatures, and organic acid corrosion of pure nickel with the high strength, ease of welding, and cost-effectiveness of carbon steel/stainless steel bases. Only a thin nickel layer is needed on the corrosion contact surface to achieve long-term corrosion protection, reducing material costs by 60%-75% compared to pure nickel plates. It solves the industry problem of easy cracking and poor fusion when directly welding dissimilar metals like nickel and steel. Suitable for high-temperature, concentrated alkali, and strong corrosion conditions where stainless steel and titanium are unsuitable, it is widely used in chlor-alkali production, caustic soda evaporation, chemical reaction vessels, salt and alkali production, and high-temperature flue gas treatment, making it the core preferred material for high-concentration alkali corrosion conditions.
Product Parameters
Implement International Standards System
● General standard for composite sheet materials: ASTM A265 (Standard Specification for Nickel and Nickel-Based Alloy Composite Steel Sheets).
● Nickel cladding material standard: ASTM B162 (Standard specification for thin, medium and heavy plates of nickel and nickel alloys).
● Carbon steel base standards: ASTM A516 Gr.70 (for pressure vessels), ASTM A36 (for structures).
● Stainless steel base standard: ASTM A240 (austenitic stainless steel plate).
● Inspection and acceptance standards: EN 10204 3.1 Material Certificate, ASTM A578 Ultrasonic Testing Standard, ISO 17671 Interface Bond Strength Testing.
Standard Material Grade
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Layered Structure |
Optional International Brands |
Operating Condition Adaptation Instructions |
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Nickel Coating |
Ni200 (UNS N02200) Industrial pure nickel; Ni201 (UNS N02201); Low carbon pure nickel; Monel 400 (UNS N04400); Nickel-copper alloy. |
Ni200: General purpose for ambient to medium temperature alkaline corrosion conditions; Ni201: Low carbon, high purity, resistant to intergranular corrosion under high temperature and concentrated alkali conditions; Monel 400: Resistant to hydrofluoric acid, seawater, and reducing acids, suitable for more complex corrosive environments. |
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Steel Base |
Carbon steel: SA-516 Gr.70, A36; Stainless steel: 304/304L, 316/316L. |
SA-516 Gr.70: For pressure vessels and heat exchange equipment; A36: Common structural components; 316L: Synchronous protection condition on the weak corrosion side. |
Product Features and Applications
Product Advantages
Nickel coatings have extremely strong corrosion resistance to strong alkaline media such as high-temperature concentrated sodium hydroxide and potassium hydroxide. Their resistance to pitting corrosion and intergranular corrosion is far superior to that of stainless steel and titanium, making them the preferred anti-corrosion material for the chlor-alkali and alkali production industries.
Explosion-driven high-speed collision achieves atomic-level metallurgical bonding, with a uniform wave-shaped interface. The shear strength far exceeds that of rolled composite plates, and there is no delamination after bending, rolling, and welding, meeting the pressure-bearing requirements of pressure vessels.
Only the corrosion contact surface uses precious nickel material, while the main body uses low-cost steel. Under the same corrosion protection life, it saves 60%-75% of material costs compared with pure nickel plates, which greatly reduces the overall cost of heavy corrosion protection equipment.
It can perform deep processing such as rolling, stamping, CNC machining, welding, and head spinning, and supports the production of pressure vessel components such as cylinders, heads, tube sheets, and evaporators, with a matching special nickel steel welding process solution.
It exhibits stable mechanical and corrosion resistance under high-temperature conditions, and its service life in concentrated alkaline environments is 10–15 times that of stainless steel equipment. The passivation film on the nickel surface can self-repair, ensuring no risk of corrosion or leakage during long-term operation and extremely low maintenance costs.
Application Areas
Chlor-alkali chemical industry: ion-exchange membrane electrolyzers, caustic soda evaporators, alkali solution conveying pipelines, and alkali production reaction equipment.
Petrochemical industry: Organic acid reaction vessels, heat exchangers, towers, and high-temperature corrosion pipeline linings.
Salt production and metallurgy: vacuum salt production equipment, hydrometallurgical leaching tanks, high-temperature corrosion components.
Food and pharmaceutical: food-grade reaction vessels, corrosion-resistant equipment for pharmaceutical production (nickel meets food contact safety standards).
Environmental engineering: High-concentration alkaline wastewater treatment equipment, high-temperature flue gas desulfurization and denitrification components.
Nuclear power energy: alkaline solution treatment equipment and high-temperature heat exchange components for the nuclear industry.
Product Details
Nickel coating layer
Acid-etched matte passivated surface, forming a dense and stable oxide film with optimal corrosion resistance; can be polished to mirror finish as needed.
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Steel base surface
Rust removal and rust prevention primer treatment, or black rolled surface can be provided.
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Edge treatment
Milling removes unbonded areas at the edges to ensure 100% bonding on all sides, and can process special welding bevels.
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Optional deep processing services
We support customized cylinder rolling, end cap stamping, tube sheet drilling, flange processing, and irregular part cutting according to drawings. We can also provide guidance on nickel steel dissimilar metal welding processes and welding material recommendations.
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Product Supporting Documents
Authoritative International Qualification Certificates
ASTM A265 and ASTM B162 material testing reports, and original manufacturer material certificates in EN 10204 3.1 for each batch.
ISO 9001 Quality Management System Certification, ISO 14001 Environmental Management System Certification.
Third-party SGS interface bonding strength, strong alkali corrosion, and UT flaw detection reports.
EU PED (Pressure Equipment Material) certification for pressure equipment; product specifications meet the standards for materials used in chemical pressure vessels.
thoughtful service
Packaging Standards (For Export By Sea)
Each sheet of board is covered with a PE protective film and rust-proof paper, and solid wood corner protectors are added to the four corners to prevent damage to the nickel surface during transportation.
The entire batch is packaged in fumigated solid wood export crates, with desiccant and rust inhibitor placed inside.
The wooden crates are labeled with material grade, dimensions, gross weight, and moisture-proof/lifting markings, suitable for all scenarios including sea, land, and air transport.
Professional Consultation Q&A
Q1: How to choose between Ni201 pure nickel coating and Monel 400 coating?
A1: Ni201 low-carbon pure nickel exhibits the best corrosion resistance to high-temperature concentrated alkalis (NaOH, KOH) and is more cost-effective, making it the preferred material for the chlor-alkali and caustic soda evaporation industries. Monel 400 nickel-copper alloy demonstrates excellent corrosion resistance in seawater, brine, hydrofluoric acid, and reducing acid environments, and has higher mechanical strength, making it more suitable for marine engineering, hydrometallurgy, and complex corrosive conditions; however, its material cost is relatively high.
Q2: Can nickel-steel composite plates be used in food and pharmaceutical production equipment?
A2: Yes. Pure nickel (Ni200/Ni201) is chemically stable, with no heavy metal leaching, meeting food contact safety requirements and widely used in food evaporation equipment, pharmaceutical reaction vessels, and other fields. Our nickel-coated surfaces can be polished to a food-grade mirror finish, with no impurities remaining, fully complying with hygiene standards in the food and pharmaceutical industries.
Q3: During long-term use, will corrosive media penetrate to the bonding interface and cause iron ions to precipitate?
A3: No. The bonding interface formed by explosive welding is a dense, atomic-level metallurgical bond with a 100% bonding rate and no pores or gaps, thus eliminating any channels for media penetration. As long as the nickel cladding is not mechanically damaged and the on-site weld is constructed according to standard procedures, corrosive media will not come into contact with the steel substrate, and no iron ion precipitation will occur during long-term stable operation.
Q4: What are the key points for on-site welding of nickel-steel explosion-proof composite plates?
A4: Nickel-steel composite plates employ a layered welding process: first, a steel base layer is welded using matching carbon steel welding materials; then, a transition layer is welded using nickel-based filler metal (ERNi-1) to isolate the iron from dilution; finally, a nickel cladding layer is welded using pure nickel or Monel matching materials. During construction, welding heat input and interpass temperature must be strictly controlled, and the welding area must be thoroughly cleaned to prevent hot cracking. We can provide a complete Welding Procedure Specification (WPS) and corresponding welding material recommendations for each project.
Latest company news
The full series of composite metal production lines has completed upgrades, reaching an annual production capacity of 1,350 tons.
Based in Baoji known as "China's Titanium Valley" Baoji Ruihenghuatai Titanium Metal Composite New Materials Co., Ltd. underwent an asset restructuring in 2024 and subsequently comprehensively upgraded its production lines for explosive welding, vacuum heat treatment, and precision machining. With 20 years of experience in non-ferrous metal processing, the company now possesses a complete industrial chain spanning ingot melting, forging, and rolling to vacuum heat treatment, supported by core equipment such as a 350kW electron beam melting furnace, a 2,000-ton hydraulic press, and a 1,500mm vacuum annealing furnace. Its product portfolio encompasses composite plates, rods, and finished components based on titanium, copper, aluminum, nickel, and zirconium, as well as multi-layer transition composites, with an annual output of 1,350 tons. All products are manufactured in strict accordance with international standards such as ASTM and ASME, backed by a comprehensive quality traceability system. With a 30% increase in production efficiency and delivery times for standard batch orders kept within 15 days, the company ensures a stable supply for global clients across the chemical, energy, new energy, and metallurgical sectors.
Enhanced R&D capabilities; titanium-based cathode plate project officially put into production.
To meet market demand in the fields of electrochemical metallurgy and new energy materials, our independently developed titanium-based cathode plate production project officially cleared government filing and environmental protection inspections in October 2025 and has now entered full-scale production.
Building upon our existing composite plate substrate capabilities, we have expanded our deep-processing operations to include finished components such as cathode plates, conductive busbars, and pressure vessel parts, thereby achieving integrated production that spans from raw composite plate materials to finished end products. We continue to increase R&D investment in dissimilar metal composite technology, enabling us to provide customized material solutions tailored to demanding operating conditions-including exposure to strong acids, strong alkalis, high temperatures, and high pressures-thereby helping customers optimize project costs and extend equipment service life.
Upgraded global service system; possessing independent import and export qualifications, enabling global distribution.
The company holds independent import and export rights and has established a comprehensive global supply and service network, with operations spanning Europe, Southeast Asia, North America, the Middle East, and other regions. We partner with renowned international logistics carriers to provide diverse transportation solutions, including sea freight, air freight, and China-Europe rail services.
Adhering to a "Quality First, Customer Foremost" philosophy, we issue EN 10204 3.1 material inspection certificates for every batch of products and support third-party inspections by authoritative bodies such as SGS and BV for all volume orders. We offer a 7-day free replacement service and long-term quality guarantees to address any quality issues, backed by 24/7 online technical support from professional engineers. We are committed to becoming a trusted, long-term supplier of clad metals to customers worldwide.
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