{"id":7540,"date":"2026-05-13T11:07:14","date_gmt":"2026-05-13T03:07:14","guid":{"rendered":"https:\/\/oqitop.com\/?post_type=product&#038;p=7540"},"modified":"2026-06-23T11:09:49","modified_gmt":"2026-06-23T03:09:49","slug":"nickel-chromium-aluminum-ni%e2%80%91cr%e2%80%91al-metal-foam-for-high%e2%80%91temperature-burners-and-catalyst-supports-2","status":"publish","type":"product","link":"https:\/\/oqitop.com\/ar\/nickel-chromium-aluminum-nicral-metal-foam-for-hightemperature-burners-and-catalyst-supports-2\/","title":{"rendered":"Nickel Chromium Aluminum (Ni\u2011Cr\u2011Al) Metal Foam for High\u2011Temperature Burners and Catalyst Supports"},"content":{"rendered":"<h3 style=\"text-align: center;\"><span style=\"color: #ff0000;\"><strong>Highly Porous Open Cell Nickel Chromium Aluminum Foam<\/strong><\/span><\/h3>\n<p>&nbsp;<\/p>\n<p><iframe src=\"https:\/\/www.youtube.com\/embed\/-_AgYMepyq4?rel=0\" allowfullscreen=\"allowfullscreen\" data-mce-fragment=\"1\"><span data-mce-type=\"bookmark\" style=\"display: inline-block; width: 0px; overflow: hidden; line-height: 0;\" class=\"mce_SELRES_start\"><\/span><span data-mce-type=\"bookmark\" style=\"display: inline-block; width: 0px; overflow: hidden; line-height: 0;\" class=\"mce_SELRES_start\"><\/span><span data-mce-type=\"bookmark\" style=\"display: inline-block; width: 0px; overflow: hidden; line-height: 0;\" class=\"mce_SELRES_start\"><\/span><span data-mce-type=\"bookmark\" style=\"display: inline-block; width: 0px; overflow: hidden; line-height: 0;\" class=\"mce_SELRES_start\"><\/span><span data-mce-type=\"bookmark\" style=\"display: inline-block; width: 0px; overflow: hidden; line-height: 0;\" class=\"mce_SELRES_start\"><\/span><span data-mce-type=\"bookmark\" style=\"display: inline-block; width: 0px; overflow: hidden; line-height: 0;\" class=\"mce_SELRES_start\"><\/span><span data-mce-type=\"bookmark\" style=\"display: inline-block; width: 0px; overflow: hidden; line-height: 0;\" class=\"mce_SELRES_start\"><\/span><span data-mce-type=\"bookmark\" style=\"display: inline-block; width: 0px; overflow: hidden; line-height: 0;\" class=\"mce_SELRES_start\"><\/span><span data-mce-type=\"bookmark\" style=\"display: inline-block; width: 0px; overflow: hidden; line-height: 0;\" class=\"mce_SELRES_start\"><\/span><\/iframe><\/p>\n<p><b><strong>\u0645\u0642\u062f\u0645\u0629<\/strong><\/b><\/p>\n<ol>\n<li>Nickel chromium aluminum foam (Ni\u2011Cr\u2011Al foam) is a 3D open\u2011cell metal foam with high porosity, low density and excellent high\u2011temperature oxidation resistance. Its interconnected Ni\u2011Cr\u2011Al skeleton provides a large specific surface area and uniform gas flow channels, making it ideal for use in radiant burners, catalytic combustion, reformer burners and high\u2011temperature gas distribution or filtration. The material can be cut, machined and formed into custom sizes for laboratory testing and industrial furnace or burner designs.<\/li>\n<li>Thanks to the combined effects of Ni, Cr and Al, Ni\u2011Cr\u2011Al foam offers good mechanical stability and corrosion resistance in hot, oxidizing atmospheres and many combustion gases. It is widely used as a support for high\u2011temperature catalysts, burner cores, flame stabilizers, VOC treatment units and heat\u2011exchange structures in petrochemical, metallurgy, power and environmental engineering. Using nickel chromium aluminum foam helps improve heat and mass transfer, achieve more uniform combustion, reduce emissions and extend the service life of thermal equipment.<\/li>\n<\/ol>\n<p><b><strong>\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a<\/strong><\/b><\/p>\n<table>\n<tbody>\n<tr>\n<td><strong>\u0627\u0644\u0646\u0648\u0639<\/strong><\/td>\n<td>Open\u2011cell Ni\u2011Cr\u2011Al alloy foam \/ nickel\u2011chromium\u2011aluminum porous metal foam (high\u2011temperature, oxidation\u2011resistant alloy)<\/td>\n<\/tr>\n<tr>\n<td><strong>Purity \/ Alloy Base<\/strong><\/td>\n<td>Ni\u2011Cr\u2011Al alloy system (nickel as main component with chromium and aluminum as key alloying elements; Cr and Al contents, plus possible minor elements, are adjusted to optimize high\u2011temperature oxidation resistance, mechanical strength and thermal stability, depending on specific grade)<\/td>\n<\/tr>\n<tr>\n<td><strong>\u0646\u0645\u0648\u0630\u062c<\/strong><\/td>\n<td>Sheet, plate, strip, block, roll or custom\u2011cut parts; can be supplied as bulk Ni\u2011Cr\u2011Al foam or as Ni\u2011based foam with Ni\u2011Cr\u2011Al surface alloy \/ coating produced by alloying, sintering or other metallurgical processes, according to application requirements<\/td>\n<\/tr>\n<tr>\n<td><strong>\u062d\u062c\u0645 \u0627\u0644\u062e\u0644\u064a\u0629 (PPI)<\/strong><\/td>\n<td>Commonly around 10\u201360 PPI (pores per inch) for thermal and catalytic applications; coarse (10\u201320 PPI), medium (20\u201340 PPI) and fine (40\u201360 PPI) structures are available; other pore sizes and gradients can be customized on request<\/td>\n<\/tr>\n<tr>\n<td><strong>\u0627\u0644\u0633\u0645\u0627\u0643\u0629<\/strong><\/td>\n<td>Typical foam sheets approx. 1\u201330 mm for catalyst supports, burners and high\u2011temperature filters; thinner foams for low\u2011pressure\u2011drop heat\u2011transfer elements, thicker sections for burner cores, structured catalysts and energy\u2011absorbing components; customized thickness available according to design requirements<\/td>\n<\/tr>\n<tr>\n<td><strong>\u0627\u0644\u062d\u062c\u0645 \u0648\u0627\u0644\u0634\u0643\u0644<\/strong><\/td>\n<td>Standard sheets and blocks (e.g. 50 \u00d7 50 mm, 100 \u00d7 100 mm, 200 \u00d7 300 mm) and discs or rings; can be cut, punched, machined or formed into plates, cylinders, panels and other geometries based on customer drawings or CAD models for reactors, furnaces, burners and heat\u2011exchange modules<\/td>\n<\/tr>\n<tr>\n<td><strong>\u0627\u0644\u0645\u0633\u0627\u0645\u064a\u0629<\/strong><\/td>\n<td>Typically about 70% \u2013 95% (adjustable); lower porosity for higher strength and load\u2011bearing capacity, higher porosity for larger surface area, better gas\/liquid permeability and heat\/mass transfer; porosity tailored to catalytic combustion, filtration or thermal\u2011management applications<\/td>\n<\/tr>\n<tr>\n<td><strong>\u0645\u0639\u062f\u0644 \u0627\u0644\u062e\u0644\u0627\u064a\u0627 \u0627\u0644\u0645\u0641\u062a\u0648\u062d\u0629<\/strong><\/td>\n<td>Usually \u2265 90% open\u2011cell interconnected structure, providing continuous channels for gas or liquid flow, uniform gas distribution and efficient mixing; degree of interconnectivity depends on manufacturing process and pore size<\/td>\n<\/tr>\n<tr>\n<td><strong>\u0643\u062b\u0627\u0641\u0629 \u0627\u0644\u062d\u062c\u0645<\/strong><\/td>\n<td>Approx. 0.3\u20131.5 g\/cm\u00b3 (adjustable via porosity and structure), much lower than dense Ni\u2011Cr\u2011Al alloys while maintaining metallic connectivity and mechanical strength for self\u2011supported structures and burner cores<\/td>\n<\/tr>\n<tr>\n<td><strong>Surface Density<\/strong><\/td>\n<td>Depending on thickness and porosity, typically about 300\u201310,000 g\/m\u00b2; lighter foams for low\u2011mass thermal and catalytic elements, heavier foams for robust structural catalyst carriers and high\u2011load burner or radiant panels<\/td>\n<\/tr>\n<tr>\n<td><strong>Specific Surface Area<\/strong><\/td>\n<td>Large effective surface area due to 3D Ni\u2011Cr\u2011Al skeleton (commonly several hundred to several thousand m\u00b2\/m\u00b3, depending on pore size and porosity), providing ample active surface for catalytic reactions, heat transfer and contact processes in high\u2011temperature gas streams<\/td>\n<\/tr>\n<tr>\n<td><strong>Thermal Conductivity (Effective)<\/strong><\/td>\n<td>Effective thermal conductivity lower than dense Ni\u2011Cr\u2011Al \/ Ni\u2011Cr alloys due to porosity (typically on the order of a few to tens of W\/m\u00b7K, strongly dependent on porosity and structure), suitable for high\u2011temperature heat\u2011exchange, radiant burners and thermal\u2011management components<\/td>\n<\/tr>\n<tr>\n<td><strong>Electrical Conductivity<\/strong><\/td>\n<td>Good metallic conductivity, reduced compared with dense nickel\u2011based alloys due to pores and alloying elements, but sufficient for ignition, heating, grounding and certain electrothermal or catalytic applications where conductive supports are required<\/td>\n<\/tr>\n<tr>\n<td><strong>Mechanical Strength (Compressive)<\/strong><\/td>\n<td>Compressive strength depends on porosity and pore architecture; typically from a few MPa up to more than 10 MPa for common engineering\u2011grade foams; higher\u2011density foams exhibit higher strength and stiffness, while higher\u2011porosity foams provide better flow characteristics and energy absorption<\/td>\n<\/tr>\n<tr>\n<td><strong>Average Tensile Strength (N\/20 mm)<\/strong><\/td>\n<td>Porous Ni\u2011Cr\u2011Al foam generally shows lower tensile strength than dense alloys; thin strips typically reach tens of N\/20 mm, depending on porosity and orientation. Actual values should be verified for each specific product, thickness and application<\/td>\n<\/tr>\n<tr>\n<td><strong>Temperature Resistance<\/strong><\/td>\n<td>Designed for operation in hot, oxidizing gas environments at elevated temperatures; Ni\u2011Cr\u2011Al alloys are widely used for heat\u2011resistant and oxidation\u2011resistant parts. Ni\u2011Cr\u2011Al foam can be applied in burners, radiant panels, catalytic combustion and heat\u2011treatment systems at high temperatures (exact limits depend on alloy composition, gas atmosphere and mechanical load)<\/td>\n<\/tr>\n<tr>\n<td><strong>\u0627\u0644\u0645\u0638\u0647\u0631<\/strong><\/td>\n<td>Metallic gray to gray\u2011silver Ni\u2011Cr\u2011Al surface with 3D sponge\u2011like open\u2011cell structure; generally uniform pore distribution without obvious defects such as large blind holes, cracks or severe deformation. Surface can be supplied cleaned, oxidized or pre\u2011treated for coating and catalytic loading<\/td>\n<\/tr>\n<tr>\n<td><strong>Chemical Composition<\/strong><\/td>\n<td>Ni\u2011Cr\u2011Al alloy (nickel\u2011based with chromium and aluminum) or Ni foam with Ni\u2011Cr\u2011Al surface alloy layer, depending on manufacturing route; Ni provides basic conductivity and strength, Cr significantly improves high\u2011temperature oxidation and corrosion resistance, Al further enhances oxidation resistance, reduces density and can influence catalytic behavior; exact composition defined by product grade or customer specification<\/td>\n<\/tr>\n<tr>\n<td><strong>Corrosion &amp; Oxidation Resistance<\/strong><\/td>\n<td>Excellent oxidation resistance at elevated temperatures and in many combustion gases due to combined Cr and Al; suitable for use in high\u2011temperature air, flue gases and various furnace\/combustion atmospheres. For very aggressive or special chemical environments, compatibility should be evaluated and additional coatings may be required<\/td>\n<\/tr>\n<tr>\n<td><strong>\u0627\u0644\u0645\u0631\u0648\u0646\u0629<\/strong><\/td>\n<td>Thin and medium\u2011porosity foams can be slightly bent, rolled or compressed; stiffness and brittleness increase with thickness and lower porosity. Repeated sharp bending may cause local fracture of the foam skeleton, so handling should follow high\u2011temperature structural\u2011foam guidelines<\/td>\n<\/tr>\n<tr>\n<td><strong>Elongation Rate (%)<\/strong><\/td>\n<td>Macroscopic elongation is limited compared with dense ductile alloys because of the porous network, typically a few percent level depending on structure and direction; design should primarily rely on compressive and bending performance for structural and thermal applications<\/td>\n<\/tr>\n<tr>\n<td><strong>Processability<\/strong><\/td>\n<td>Can be cut, punched, laser\u2011cut, machined and formed; can be brazed, welded (where applicable) or mechanically fixed into assemblies. Surface is suitable for wash\u2011coating, impregnation, thermal spraying and other catalyst\u2011loading or protective\u2011coating processes used in high\u2011temperature reactors and burners<\/td>\n<\/tr>\n<tr>\n<td><strong>Surface Treatment \/ Coating (Optional)<\/strong><\/td>\n<td>Optional treatments include degreasing, controlled oxidation, ceramic wash\u2011coating, and catalytic layers (e.g. Ni\u2011, Co\u2011 or noble\u2011metal catalysts, perovskites) as well as protective coatings to enhance thermal shock resistance, catalytic activity and service life in severe operating conditions<\/td>\n<\/tr>\n<tr>\n<td><strong>Typical Electrochemical \/ Catalytic Applications<\/strong><\/td>\n<td>High\u2011temperature catalyst supports for reforming, oxidation and combustion; structured catalysts for VOC abatement, exhaust treatment and gas\u2011phase reactions; porous burners, radiant burner cores, flame holders and ignition supports where uniform gas distribution and stable, low\u2011emission combustion are required<\/td>\n<\/tr>\n<tr>\n<td><strong>Other Industrial Applications<\/strong><\/td>\n<td>Lightweight heat\u2011exchange media, high\u2011temperature gas filters, flame stabilizers, gas distribution plates, noise\u2011 and energy\u2011absorbing structures, thermal\u2011management components and support structures in petrochemical, metallurgy, power generation, furnace and environmental engineering fields<\/td>\n<\/tr>\n<tr>\n<td><strong>Main Features &amp; Advantages<\/strong><\/td>\n<td>Combines high porosity and large surface area with good metallic conductivity, relatively low density and outstanding high\u2011temperature oxidation resistance from Cr and Al; 3D interconnected network enables efficient heat and mass transfer with low pressure drop; suitable as a robust, lightweight support for catalysts, burners and thermal\u2011engineering components where conventional dense metals or ceramics are less efficient<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><b><strong>\u0627\u0644\u0628\u064f\u0639\u062f<\/strong><\/b><b><strong>\u00a0(<\/strong><\/b><b><strong>\u0627\u0644\u0633\u064f\u0645\u0643*\u0627\u0644\u0637\u0648\u0644*\u0627\u0644\u0639\u0631\u0636<\/strong><\/b><b><strong>)<\/strong><\/b><\/p>\n<table>\n<tbody>\n<tr>\n<td width=\"161\">0.08 \u0645\u0645 * 300 \u0645\u0645 * 200 \u0645\u0645<\/td>\n<td width=\"161\">0.2 \u0645\u0645 * 200 \u0645\u0645 * 300 \u0645\u0645<\/td>\n<td width=\"242\">0.3 \u0645\u0645 * 200 \u0645\u0645 * 300 \u0645\u0645<\/td>\n<\/tr>\n<tr>\n<td width=\"161\">0.5 \u0645\u0645 * 200 \u0645\u0645 * 300 \u0645\u0645<\/td>\n<td width=\"161\">0.7 \u0645\u0645 * 200 \u0645\u0645 * 300 \u0645\u0645<\/td>\n<td width=\"242\">0.9 \u0645\u0645 * 200 \u0645\u0645 * 300 \u0645\u0645<\/td>\n<\/tr>\n<tr>\n<td width=\"161\">1.0 \u0645\u0645 * 200 \u0645\u0645 * 300 \u0645\u0645<\/td>\n<td width=\"161\">1.3 \u0645\u0645 * 200 \u0645\u0645 * 300 \u0645\u0645<\/td>\n<td width=\"242\">1.5 \u0645\u0645 * 200 \u0645\u0645 * 300 \u0645\u0645<\/td>\n<\/tr>\n<tr>\n<td width=\"161\">1.7 \u0645\u0645 * 200 \u0645\u0645 * 300 \u0645\u0645<\/td>\n<td width=\"161\">2.0 \u0645\u0645 * 200 \u0645\u0645 * 300 \u0645\u0645<\/td>\n<td width=\"242\">5 \u0645\u0645 * 200 \u0645\u0645 * 300 \u0645\u0645<\/td>\n<\/tr>\n<tr>\n<td width=\"161\">10 \u0645\u0645 * 200 \u0645\u0645 * 300 \u0645\u0645<\/td>\n<td width=\"161\">30 \u0645\u0645 * 200 \u0645\u0645 * 300 \u0645\u0645<\/td>\n<td width=\"242\"><span style=\"color: #ff0000;\"><b><strong>\u064a\u0645\u0643\u0646 \u062a\u062e\u0635\u064a\u0635 \u0627\u0644\u062d\u062c\u0645<\/strong><\/b><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><b><strong>\u0644\u062a\u062e\u0635\u064a\u0635 \u0645\u062e\u062a\u0644\u0641 \u0623\u0646\u0648\u0627\u0639 \u0627\u0644\u0631\u063a\u0627\u0648\u064a \u0627\u0644\u0645\u0639\u062f\u0646\u064a\u0629\u060c \u064a\u0631\u062c\u0649 \u0627\u0644\u0646\u0642\u0631 \u0639\u0644\u0649 \u0627\u0644\u0635\u0648\u0631\u0629 \u0623\u062f\u0646\u0627\u0647 \u0644\u0644\u062d\u0635\u0648\u0644 \u0639\u0644\u0649 \u0627\u0644\u062a\u0641\u0627\u0635\u064a\u0644:<\/strong><\/b><\/p>\n<table>\n<tbody>\n<tr>\n<td>&nbsp;<\/p>\n<figure id=\"attachment_2567\" class=\"wp-caption aligncenter\" aria-describedby=\"caption-attachment-2567\"><a href=\"https:\/\/oqitop.com\/ar\/%d8%a7%d9%84%d9%85%d9%86%d8%aa%d8%ac%d8%a7%d8%aa\/metal-foam\/copper-foam\/\"><img decoding=\"async\" class=\"wp-image-2567 size-thumbnail\" src=\"https:\/\/oqitop.com\/wp-content\/uploads\/2025\/12\/Copper-Foam-150x150.jpg\" sizes=\"(max-width: 150px) 100vw, 150px\" srcset=\"https:\/\/oqitop.com\/wp-content\/uploads\/2025\/12\/Copper-Foam-150x150.jpg 150w, https:\/\/oqitop.com\/wp-content\/uploads\/2025\/12\/Copper-Foam-300x300.jpg 300w, https:\/\/oqitop.com\/wp-content\/uploads\/2025\/12\/Copper-Foam.jpg 600w\" alt=\"\" width=\"150\" height=\"150\" title=\"\"><\/a><figcaption id=\"caption-attachment-2567\" class=\"wp-caption-text\"><a href=\"https:\/\/oqitop.com\/ar\/%d8%a7%d9%84%d9%85%d9%86%d8%aa%d8%ac%d8%a7%d8%aa\/metal-foam\/copper-foam\/\">\u0631\u063a\u0648\u0629 \u0627\u0644\u0646\u062d\u0627\u0633<\/a><\/figcaption><\/figure>\n<\/td>\n<td>&nbsp;<\/p>\n<figure id=\"attachment_2568\" class=\"wp-caption aligncenter\" aria-describedby=\"caption-attachment-2568\"><a href=\"https:\/\/oqitop.com\/ar\/%d8%a7%d9%84%d9%85%d9%86%d8%aa%d8%ac%d8%a7%d8%aa\/metal-foam\/nickel-foam\/\"><img decoding=\"async\" class=\"wp-image-2568 size-thumbnail\" src=\"https:\/\/oqitop.com\/wp-content\/uploads\/2025\/12\/Nickel-Foam-150x150.png\" sizes=\"(max-width: 150px) 100vw, 150px\" srcset=\"https:\/\/oqitop.com\/wp-content\/uploads\/2025\/12\/Nickel-Foam-150x150.png 150w, https:\/\/oqitop.com\/wp-content\/uploads\/2025\/12\/Nickel-Foam-300x300.png 300w, https:\/\/oqitop.com\/wp-content\/uploads\/2025\/12\/Nickel-Foam.png 500w\" alt=\"\" width=\"150\" height=\"150\" title=\"\"><\/a><figcaption id=\"caption-attachment-2568\" class=\"wp-caption-text\"><a href=\"https:\/\/oqitop.com\/ar\/%d8%a7%d9%84%d9%85%d9%86%d8%aa%d8%ac%d8%a7%d8%aa\/metal-foam\/nickel-foam\/\">\u0631\u063a\u0648\u0629 \u0627\u0644\u0646\u064a\u0643\u0644<\/a><\/figcaption><\/figure>\n<\/td>\n<td>&nbsp;<\/p>\n<figure id=\"attachment_2569\" class=\"wp-caption aligncenter\" aria-describedby=\"caption-attachment-2569\"><a href=\"https:\/\/oqitop.com\/ar\/%d8%a7%d9%84%d9%85%d9%86%d8%aa%d8%ac%d8%a7%d8%aa\/metal-foam\/%d8%b1%d8%ba%d9%88%d8%a9-%d8%a7%d9%84%d8%aa%d9%8a%d8%aa%d8%a7%d9%86%d9%8a%d9%88%d9%85\/\"><img decoding=\"async\" class=\"wp-image-2569 size-thumbnail\" src=\"https:\/\/oqitop.com\/wp-content\/uploads\/2025\/12\/Ti-Foam-150x150.png\" sizes=\"(max-width: 150px) 100vw, 150px\" srcset=\"https:\/\/oqitop.com\/wp-content\/uploads\/2025\/12\/Ti-Foam-150x150.png 150w, https:\/\/oqitop.com\/wp-content\/uploads\/2025\/12\/Ti-Foam-300x300.png 300w, https:\/\/oqitop.com\/wp-content\/uploads\/2025\/12\/Ti-Foam.png 500w\" alt=\"\" width=\"150\" height=\"150\" title=\"\"><\/a><figcaption id=\"caption-attachment-2569\" class=\"wp-caption-text\"><a href=\"https:\/\/oqitop.com\/ar\/%d8%a7%d9%84%d9%85%d9%86%d8%aa%d8%ac%d8%a7%d8%aa\/metal-foam\/%d8%b1%d8%ba%d9%88%d8%a9-%d8%a7%d9%84%d8%aa%d9%8a%d8%aa%d8%a7%d9%86%d9%8a%d9%88%d9%85\/\">Ti Foam<\/a><\/figcaption><\/figure>\n<\/td>\n<td>&nbsp;<\/p>\n<figure id=\"attachment_2571\" class=\"wp-caption aligncenter\" aria-describedby=\"caption-attachment-2571\"><a href=\"https:\/\/oqitop.com\/ar\/%d8%a7%d9%84%d9%85%d9%86%d8%aa%d8%ac%d8%a7%d8%aa\/metal-foam\/%d8%b1%d8%ba%d9%88%d8%a9-%d8%a7%d9%84%d8%a3%d9%84%d9%88%d9%85%d9%86%d9%8a%d9%88%d9%85\/\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-2571 size-thumbnail\" src=\"https:\/\/oqitop.com\/wp-content\/uploads\/2025\/12\/Aluminum-Foam-1-150x150.png\" sizes=\"(max-width: 150px) 100vw, 150px\" srcset=\"https:\/\/oqitop.com\/wp-content\/uploads\/2025\/12\/Aluminum-Foam-1-150x150.png 150w, https:\/\/oqitop.com\/wp-content\/uploads\/2025\/12\/Aluminum-Foam-1-300x300.png 300w, https:\/\/oqitop.com\/wp-content\/uploads\/2025\/12\/Aluminum-Foam-1.png 529w\" alt=\"\" width=\"150\" height=\"150\" title=\"\"><\/a><figcaption id=\"caption-attachment-2571\" class=\"wp-caption-text\"><a href=\"https:\/\/oqitop.com\/ar\/%d8%a7%d9%84%d9%85%d9%86%d8%aa%d8%ac%d8%a7%d8%aa\/metal-foam\/%d8%b1%d8%ba%d9%88%d8%a9-%d8%a7%d9%84%d8%a3%d9%84%d9%88%d9%85%d9%86%d9%8a%d9%88%d9%85\/\">\u0631\u063a\u0648\u0629 \u0627\u0644\u0623\u0644\u0648\u0645\u0646\u064a\u0648\u0645<\/a><\/figcaption><\/figure>\n<\/td>\n<\/tr>\n<tr>\n<td>&nbsp;<\/p>\n<figure id=\"attachment_2572\" class=\"wp-caption aligncenter\" aria-describedby=\"caption-attachment-2572\"><a href=\"https:\/\/oqitop.com\/ar\/%d8%a7%d9%84%d9%85%d9%86%d8%aa%d8%ac%d8%a7%d8%aa\/metal-foam\/iron-nickel-foam\/\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-2572 size-thumbnail\" src=\"https:\/\/oqitop.com\/wp-content\/uploads\/2025\/12\/Iron-Nickel-Foam-150x150.jpg\" sizes=\"(max-width: 150px) 100vw, 150px\" srcset=\"https:\/\/oqitop.com\/wp-content\/uploads\/2025\/12\/Iron-Nickel-Foam-150x150.jpg 150w, https:\/\/oqitop.com\/wp-content\/uploads\/2025\/12\/Iron-Nickel-Foam-300x300.jpg 300w, https:\/\/oqitop.com\/wp-content\/uploads\/2025\/12\/Iron-Nickel-Foam.jpg 720w\" alt=\"\" width=\"150\" height=\"150\" title=\"\"><\/a><figcaption id=\"caption-attachment-2572\" class=\"wp-caption-text\"><a href=\"https:\/\/oqitop.com\/ar\/%d8%a7%d9%84%d9%85%d9%86%d8%aa%d8%ac%d8%a7%d8%aa\/metal-foam\/iron-nickel-foam\/\">\u0631\u063a\u0648\u0629 \u0627\u0644\u062d\u062f\u064a\u062f \u0648\u0627\u0644\u0646\u064a\u0643\u0644<\/a><\/figcaption><\/figure>\n<\/td>\n<td>&nbsp;<\/p>\n<figure id=\"attachment_2573\" class=\"wp-caption aligncenter\" aria-describedby=\"caption-attachment-2573\"><a 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