NAVI Titanium's sintered nickel can use Monel, Hastelloy, Inconel, and other nickel-based alloy substrates depending on operating conditions, with different grades precisely matching various corrosive environments. Compared to stainless steel sintered materials, nickel alloy substrates have stronger passivation film stability in reducing acids, concentrated alkalis, and wet chlorine gas, and they don't corrode between grains quickly. Many customers who replaced their original stainless steel sintered components with NAVI Titanium sintered nickel alloys have seen their component lifespan increase by 3 to 10 times, significantly cutting down on downtime, replacement frequency, and reducing labor maintenance and spare parts inventory pressure.
Solution of NAVI Titanium
NAVI Titanium has been deeply involved in the titanium industry for over a decade. With strong technical expertise, we've established ourselves at the forefront of the industry, always putting quality first and empowering high-quality development. Years of project experience have given us mature manufacturing capabilities and a complete product system that can flexibly adapt to all kinds of complex on-site conditions. The table below summarizes the key information for NAVI Titanium's main titanium products, making it easier for you to fully assess their advantages and suitability.
NAVI Titanium offers a variety of products, including Monel, Hastelloy, and Inconel. The products come in different forms and can be processed into thin plates, square plates, hexagonal plates, special-handled parts, flanged perforated discs, round parts with central holes, and various custom-shaped structures. Whether it's standard flat plates, ring gaskets, parts with mounting holes, irregular cantilevers, or components with special contours, everything can be customized according to drawings to meet different equipment assembly needs.
Application
In modern industrial gas processing, gas filtration is far from just catching impurities. Harsh conditions like high temperatures, strong corrosion, high-pressure pulsations, high-purity gases, and flammable or explosive mediums put tough demands on filter materials, pore structure reliability, mechanical strength, and fatigue resistance. NAVI Titanium, as a manufacturer specializing in special porous metal materials, has been deeply involved in powder metallurgy sintering for years. Using their mature nickel-based powder solid-state sintering process, they develop and produce high-performance sintered nickel porous filter elements.
Chemical production processes generate process gases containing alkali mist, ammonia, and alkaline dust. These gases are highly corrosive to stainless steel. This product's resistance to alkali corrosion is fully utilized for filtering and separating liquid alkali droplets and alkaline solid particles in the gas.
Typical scenarios: Gaseous purification in caustic soda production, pretreatment of ammonia synthesis process gases, and exhaust gas filtration in alkaline electrolysis processes. The gas carries tiny alkali mist and solid particles into the filter, where the filter element intercepts the alkali mist droplets and dust, allowing clean gas to proceed to the next step. Alkali liquid accumulates on the surface of the filter element and can be self-drained through the gas flow; combined with regular backflushing, a stable pressure drop is maintained.
Purchasing guide
Quality control (QC)
NAVI Titanium has been deeply involved in the research, production, and manufacturing of titanium for many years, always treating quality control as the core foundation of its development. With a standardized, meticulous, full-chain quality management system, we have successfully obtained ISO9001 international quality management system certification. Using authoritative international standards as a benchmark, we provide global customers with highly reliable, stable, and high-quality titanium products. Below are some of our product test reports for your reference.
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Manufacturing Process
After more than ten years of technical accumulation and experience, NAVI Titanium has built a standardized full-chain process system covering raw material selection, vacuum melting, precision forging, fine rolling, CNC precision machining, delicate polishing, special surface treatment, and final product shaping, laying a solid technical foundation for the high-quality output of each product. Throughout the entire production process, we reject rough, formalized management. For every production step and each processing procedure, we have established dedicated, detailed, practical, and traceable process execution standards and standardized operating procedures, clearly defining process parameters, machining accuracy, operation steps, quality inspection standards, and control points for each stage. The following article takes an in-depth look at a series of our production operations:
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Selection Guide
The selection of sintered nickel for gas filtration projects involves multiple factors, including the chemical properties of the medium, operating temperature, system pressure, gas flow, dust characteristics, allowable pressure drop, and cleaning schemes. You can't determine the right material and structure based on a single parameter. Choosing the wrong option can lead to insufficient filtration capacity, rapid pressure drop increases, and frequent downtime for maintenance. In worse cases, filter elements can corrode or break, particles may leak, contaminating downstream processes, and even causing production safety hazards. Below, the NAVI Titanium technical team has compiled a table based on multiple references to help with your selection (the data inside is for reference only).
Table of whether this material is suitable/unsuitable for gas media
| Medium Classification | Examples of Medium | Recommended? | Brief Explanation | Alternative Materials |
| Alkaline gas phase / gas containing alkaline mist | NaOH and KOH vapors, ammonia, alkaline salt spray | Recommended | Nickel has a stable passive film in alkaline environments and stands out for its resistance to alkali corrosion. | None |
| Neutral dry gas | N₂, Ar, H₂, dry air | Recommended | It remains mechanically stable at high temperatures without precipitation contamination. | Sintered stainless steel can be used as a low-cost alternative |
| Weakly reducing gas | Small amounts of CO and hydrocarbon gases | Recommended | Nickel can withstand reducing atmospheres, with no risk of hydrogen embrittlement at high temperatures. | Hastelloy sintered parts are used in conditions with trace halogen impurities |
| Gas containing moisture with halogens, strongly oxidizing acid vapor | Moist chlorine gas, concentrated nitric acid vapor, chromium oxide fumes | Not Recommended | Nickel corrodes and dissolves quickly. | Hastelloy and Monel sintered porous materials |
| Strongly acidic gas phase (non-oxidizing) | Dilute hydrochloric acid vapor | Evaluate Carefully | It can be used for short periods at low temperatures and low concentrations, but corrosion is obvious under long-term continuous conditions. | Hastelloy sintered parts |
Gas filtration equipment varies in structure, installation space, and assembly methods, so standard filter elements often struggle to fully match on-site conditions and installation needs. NAVI Titanium leverages mature powder metallurgy forming and precision post-processing capabilities to flexibly customize various shaped and non-standard sintered nickel filtration components based on the customer's equipment structure, installation dimensions, and process layout. To make selection and blueprint coordination easier, the table below summarizes the main body shapes in the product line, the range of processable sizes, supporting processing techniques, and corresponding gas filtration applications. It covers both standard parts and customized non-standard parts, helping customers quickly find compatible specifications, shorten customization cycles, and improve equipment assembly accuracy and filtration system stability.
Custom Size Table
| Product Appearance | Machinable Size Range | Available Processing Options | Typical Applications of Gas Filtration |
| Flat thin sheets | Customized according to customer's drawings | Cutting, punching, bending | Small gas purification device with built-in filter baffle |
| Round filter sheets | Center hole, edge flange hole | Filter cartridge disc filter, most common structure | |
| Ring-shaped filter plates | Multiple positioning holes, countersinking | Tube filter end plate, gas distribution gasket | |
| Special-shaped parts (with ears / hexagonal / flange) | Welded base, positioning groove | Reactor internals, non-standard gas phase filter chamber | |
| Tubular sintered nickel filter elements | Sealed weld at both ends, threaded joint | High-flow vertical gas filter |
Frequently Asked Questions
For overseas procurement of sintered nickel, what pre-technical support services can NAVI Titanium provide, and do you support small-scale condition verification?
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NAVI Titanium's sales service is not just about product delivery. During the pre-sales stage, we can offer free material compatibility assessments and pore size & porosity calculations based on customer gas/liquid filtration conditions. We support small-batch sample customization, with samples accompanied by bubble point and air permeability test reports. Customers can directly put the sintered nickel samples into their onsite equipment for aging and corrosion tests. Our engineers follow the sample testing process closely, adjusting filter thickness and structure based on actual feedback to avoid performance deviations in mass production and reduce project launch risks. This service is available to industrial buyers worldwide.
For long-term overseas project orders, what mid- and long-term sales support does NAVI Titanium provide to ensure batch-to-batch consistency?
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For long-term overseas framework orders, NAVI Titanium sets up a dedicated project file, locking batch production parameters and quality inspection standards to ensure consistent porosity and mechanical performance for every batch. During sales, we can provide material certificates, SGS test reports, and customized packaging labels. After sales, we support batch performance verification; if customers encounter pressure drop anomalies or material compatibility questions during continuous use, our technical team can provide remote condition diagnostics. For repeat customers, we can reserve production capacity, optimize scheduling, shorten lead times, and support staggered delivery for annual projects.
When purchasing sintered nickel in the European market, can NAVI Titanium comply with local customer compliance documents and third-party audit requirements?
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Europe is one of our core markets for sintered nickel, with customers mainly being electrolysis equipment manufacturers and chemical filtration system integrators. NAVI Titanium can prepare material traceability certificates and raw material spectrum reports according to EU procurement requirements and assist customers with factory documentation audits. We can provide English version quality certificates as needed and support third-party material sampling inspections. Our sales team understands European traceability requirements for porous metals and aligns document standards in advance to reduce customs and onsite acceptance obstacles, matching the strict incoming inspection processes of industrial clients in Germany, France, the Netherlands, etc.
For Southeast Asian customers purchasing sintered nickel, what localized arrangements does NAVI Titanium provide in sales delivery?
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Key customers in Southeast Asia are mainly in Singapore, Malaysia, and Indonesia, focusing on new energy electrolysis support and chemical exhaust filtration. Customers in this region generally care about short lead times, stable sea transport, and cost control. The NAVI sales team can optimize packaging to suit tropical, high-humidity shipping environments and plan container schedules in advance. We support consolidated shipping to reduce international logistics costs, and documents can comply with Southeast Asia customs regulations. We also provide a simple onsite maintenance guide to help customers perform basic online back-blowing maintenance of sintered nickel, addressing the lack of maintenance experience among local onsite technicians.
For Middle Eastern customers purchasing sintered nickel, how does NAVI Titanium adapt its sales service to high-temperature alkaline project requirements?
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Core customers in the Middle East are in the UAE and Saudi Arabia, mostly using alkaline electrolysis and high-temperature gas filtration projects. Conditions are high-temperature and high alkaline mist concentration, requiring excellent corrosion resistance from sintered nickel. Our sales service first conducts a medium compatibility assessment to confirm the long-term stability of nickel porous components under high-temperature alkaline gas conditions. We can provide long-term condition reference cases and support custom-shaped non-standard sintered nickel component drawings and sampling. Delivery documents include recommendations for alkaline resistance applications and cleaning/regeneration technical data, helping customers extend filter life and reduce replacement frequency in high-temperature corrosion environments.
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