QUALITU STANDARD MATERIAL NO. OLD DESIGNATION DC04 DIN EN 10130 1.0338 St 14-03 The special deep-drawing grade DC04 is specified in accordance with the standard DIN EN 10130, which focuses on cold-rolled flat products made of soft steels for cold forming. This standard specifies the technical requirements and test methods for cold-rolled products that are important in numerous industrial applications, especially where high formability and excellent surface quality are required. DC04 is a low-carbon steel that impresses with its exceptional cold formability. The chemical composition of DC04 is precisely balanced to ensure that the material has the desired mechanical properties. The carbon content in DC04 is typically a maximum of 0.08 %, while the manganese content is a maximum of 0.40 %. This composition supports the high formability and weldability of the steel, making it ideal for demanding forming processes. The mechanical properties of DC04 are characterized by a low yield strength of maximum 210 MPa and a tensile strength between 270 and 350 MPa. Particularly noteworthy is the high elongation at break of at least 38%, which illustrates the excellent formability of the material. These properties make DC04 a preferred choice for the production of complex components that require high precision and surface quality, such as car body components in the automotive industry or filigree parts in the electronics industry. The DIN EN 10130 standard also specifies the tolerances for dimensions, shape and surface finish. These tolerances are crucial to ensure consistently high product quality and to meet the requirements of end users. The surface of the cold-rolled flat products can be supplied in various qualities, from matt to high-gloss, to meet the specific requirements of different applications. The DIN EN 10152 standard specifies electrolytically galvanized, cold-rolled flat steel products for cold forming, including the special deep-drawing grade DC04. This standard defines the requirements for the zinc coating and the basic mechanical properties of the base material. DC04, when electrolytically galvanized in accordance with DIN EN 10152, is given an additional corrosion protection layer of zinc. This layer protects the material from oxidative influences and significantly increases the service life of the components made from it. The zinc coating can be applied in various thicknesses, depending on the specific requirements of the application. Typical coating thicknesses range from 5 to 20 µm. The chemical composition and mechanical properties of the base material DC04 remain unchanged even after galvanizing and meet the requirements of DIN EN 10130. DC04 therefore retains its excellent cold formability and mechanical performance. In addition to mechanical performance, the quality of the zinc coating is of central importance. The DIN EN 10152 standard specifies the requirements for the uniformity of the coating, the adhesive strength of the zinc and the surface quality. These requirements ensure that the galvanized products offer high corrosion resistance and an aesthetically pleasing surface. The use of DC04 in accordance with DIN EN 10152 is widespread in the automotive industry, the construction industry and in the manufacture of household appliances, where improved corrosion resistance is required in addition to high formability. Electrolytic galvanizing offers optimum protection here without impairing the excellent mechanical properties of the base material. DC04 and DC01 are both cold-rolled, unalloyed quality steels that are used for various industrial applications. While DC01 serves as the standard grade for general cold forming processes, DC04 is characterized by improved deep-drawing properties and higher ductility. This comparison highlights the differences between the two materials in terms of chemical composition, mechanical properties and typical applications. Chemical composition The chemical composition influences the formability and weldability of the steel. Both steels are made of carbon steel, but DC04 has a lower carbon content, which supports its improved cold formability. Thanks to the lower carbon and Sulphur content, DC04 offers improved deep-drawing capability as less intergranular embrittlement occurs. Mechanical properties The mechanical properties are decisive for the forming processes and the behavior of the steel under load. DC04 has a lower yield strength and higher elongation, which makes the material easier to form. The lower yield strength and increased minimum elongation of DC04 make this material ideal for demanding forming processes such as deep drawing.

DIN 2568 Carbon Steel Flanges PN 64 are robust threaded flanges manufactured from high-strength carbon steel, specifically designed to deliver reliable performance in high-pressure industrial systems. Produced in accordance with DIN 2568 specifications, these flanges offer excellent mechanical strength, thermal conductivity, and impact resistance, making them well-suited for demanding applications in oil and gas, petrochemicals, water treatment, mechanical construction, and power generation. Ladhani Metal Corporation is a trusted manufacturer and exporter of carbon steel flanges, offering products that comply with international quality standards and dimensional tolerances. The threaded design enables quick, weld-free installation and removal, making these flanges ideal for systems requiring ease of maintenance and rapid assembly. Pressure Rating: • PN 64 (64 bar / 928 psi): Engineered to withstand high-pressure environments and thermal variations in critical industrial applications. Flange Types: • Threaded (Screwed) Flanges Enable efficient installation without welding, ideal for systems requiring regular inspection or maintenance. • Raised Face (RF) Flanges Improve gasket sealing by concentrating pressure at the gasket area, ideal for high-pressure applications. • Flat Face (FF) Flanges Used in systems involving flat mating surfaces, particularly with brittle or non-metallic equipment. • Forged Threaded Flanges Provide excellent mechanical properties, dimensional accuracy, and durability under load. • Custom-Machined Flanges Available in various sizes, sealing surfaces, and material grades as per customer requirements. Available Carbon Steel Grades and Composition: 1. ASTM A105 (Forged Carbon Steel) Composition: • Carbon (C): ≤ 0.35% • Manganese (Mn): 0.60 – 1.05% • Phosphorus (P): ≤ 0.035% • Sulfur (S): ≤ 0.040% • Silicon (Si): 0.10 – 0.35% Applications: Widely used in valve, pipe, and fitting assemblies in oil and gas, power, and chemical systems due to its strength, toughness, and weldability. 2. ASTM A350 LF2 (Low-Temperature Carbon Steel) Composition: • Carbon (C): ≤ 0.30% • Manganese (Mn): 0.60 – 1.35% • Phosphorus (P): ≤ 0.035% • Sulfur (S): ≤ 0.040% • Silicon (Si): 0.15 – 0.30% Applications: Ideal for cryogenic and low-temperature pressure systems such as pipelines, storage tanks, and vessel components operating in sub-zero climates. Applications of DIN 2568 Carbon Steel Flanges: • Oil and Gas Industry Utilized in upstream and downstream operations, including high-pressure pipelines, wellheads, and separators. • Power Plants Used in steam, cooling water, and high-pressure boiler systems. • Water and Wastewater Management Suitable for potable water lines, sewage treatment facilities, and utility piping systems. • Petrochemical and Refining Applied in process piping that handles non-aggressive or mildly corrosive fluids. • Mechanical and Structural Installations Common in HVAC systems, pressure vessels, and general mechanical piping networks. Key Features: • Manufactured as per DIN 2568 standard • Rated for PN 64 high-pressure applications • Excellent strength, impact resistance, and thermal conductivity • Threaded connection ensures quick and easy, weld-free assembly • Cost-effective and durable solution for industrial infrastructure • Supplied with test certificates, inspection reports, and full traceability • Compatible with galvanizing, coating, or welding processes as required Conclusion: DIN 2568 Carbon Steel Flanges PN 64 from Ladhani Metal Corporation are engineered for high performance in critical industrial environments. Offering high pressure resistance, mechanical durability, and easy installation, these flanges are an optimal solution for a wide range of piping systems. For custom sizes, material options, or technical consultation, contact Ladhani Metal Corporation today.

Porduct name : Titanium clad stainless steel tube sheet Material: Titanium +steel,Titanium+stainless steel etc. Size &Standard: As per client drawing Production Method: Forging,annealing and machining Advantage: Excellent corrosion resistance ability Packing: Plywood case Application: Heat Exchanger, chemical equipment, Pressure Vessel, filter devices, etc. Titanium clad stainless steel tube sheet Titanium composite steel plate tube-sheet is a single or double-sided composite plate made of ordinary grade TA1 or TA2 (composite metal) and carbon steel or alloy steel by explosion, explosion + rolling or hot rolling. Titanium metal has excellent corrosion resistance, widely used in flue gas desulfurization equipment, power plant chimneys, chemical reactors, heat exchangers, pressure vessels, etc. But its disadvantage is high cost, titanium composite steel plate tubesheet has the corrosion resistance of titanium metal and the structural strength of steel, can greatly reduce the project cost. At present, the production method of titanium composite steel tubesheet is as follows: 1. Weld compound 2. Rolling compound 3. Explosive welding 4. Explosive welding + rolling Baoji Lihua uses explosive welding and rolling and combines the two processes. This method can overcome the disadvantages of small area and complex rolling process of explosive composite plate, give full play to their respective advantages, and produce titanium steel composite plate with large area and small thickness. It is more efficient and cheaper. Technological parameters and shear strength of explosive welding of Titanium clad stainless steel plate tube sheet 1 Cladding materials Base materials h0/ mm Wg/ (g.cm-2) Bond strength/MPa 1 2 3 4 Average Remark Metal δ1/ mm Metal δ2/ mm Titanium 3 5 Stainless steel 18 5 6.5 1.4 1.6 σt 293 200 392 179 266 The substrate is generally polished. σf 247 208 113 92 165 σt 447 530 460 441 444 The substrate is polished. σf 403 200 363 322 σt 139 105 203 205 163 The substrate is generally polished. σf 231 345 286 287 285 σt 407 410 263 407 372 The substrate is polished. σf 498 571 513 527 Losive welding of Titanium clad stainless steel plate tube sheet 2 Cladding materials Base materials h0/ mm Wg/ (g.cm-2) Bond strength/MPa 1 2 3 4 Average Remark Metal δ1/ mm Metal δ2/ mm Titanium 3 5 Stainless steel 18 5 6.5 1.4 1.6 σt 392 87 240 18 The substrate is generally polished. σf 345 92 157 12 σt 530 279 402 5 The substrate is polished. σf 403 200 321 3 σt 339 60 230 18 The substrate is generally polished. σf 287 149 233 11 σt 571 513 541 2 The substrate is polished.

Product Name: Titanium grade 7 elbows Standard: ASME B16.9 Material: Gr1, Gr2, Gr7, Gr12 Unit Price: $10usd/pc-$200usd/pc Outer Diameter: 1/2"-48" Wall Thickness: Sch5s-Sch160s Technique: Seamless/Welded Functions and features: 1. Elbow is used to install between two sections of pipe or pipe allowing direction change. 2. Save space, reduce weight, with sealing function. 3. Economic reliability. Production methods of titanium elbow: 1.Hot push forming The hot pushing elbow forming process is a process of heating, expanding and bending the blank sleeved on the die under the push of the pushing machine by using a special elbow pushing machine, core die and heating device. 2.Stamping forming Stamping forming elbow is the first forming process used in batch production of seamless elbow. It has been replaced by hot pushing method or other forming processes in the production of common specifications of elbow. However, it is still used in some specifications of elbow due to special requirements for products with small production quantity, too thick or too thin wall thickness. The pipe blank equal to the outer diameter of the elbow is used for the stamping forming of the elbow, and the press is used to press directly in the die. 3.Medium plate welding Use the medium plate to make half of the elbow section with a press, and then weld the two sections together. This process is generally used for elbows above DN700. Grade 7 (Ti-0.2Pd) titanium elbow Chemical compositions(weight%,<=) Pd Al V Fe C 0.12-0.25 ---- ---- 0.30 0.08 N H O Other(total) Ti 0.05 0.015 0.2 0.4 Remainder Physical properties(>=) Σb Tensile Strength (Mpa) σr0.2 Yield Strength (Mpa) δL0+50mm Elongation (%) ψ Reduction of area (%) 370 250 20 25

Product Name: Titanium grade 7 elbows Standard: ASME B16.9 Material: Gr1, Gr2, Gr7, Gr12 Outer Diameter: 1/2"-48" Wall Thickness: Sch5s-Sch160s Technique: Seamless/Welded Titanium grade 7 elbows Name: Titanium elbow 90 degree 45 degree 180 degree Material: Pure titanium or Titanium alloy Gr1,GR2,GR3,GR5,GR7,GR9,GR12 Size Outer diameter: DN10- 302 Or customizable Wall thickness: 1-15mm Sch5s-Sch160 Standard: ASTM B363 Technique: Forged Quality control: the X-ray detection (RT),Surface penetrant inspection (PT) Functions and features: 1. Elbow is used to install between two sections of pipe or pipe allowing direction change. 2. Save space, reduce weight, with sealing function. 3. Economic reliability. Production methods of titanium elbow: 1.Hot push forming The hot pushing elbow forming process is a process of heating, expanding and bending the blank sleeved on the die under the push of the pushing machine by using a special elbow pushing machine, core die and heating device. 2.Stamping forming Stamping forming elbow is the first forming process used in batch production of seamless elbow. It has been replaced by hot pushing method or other forming processes in the production of common specifications of elbow. However, it is still used in some specifications of elbow due to special requirements for products with small production quantity, too thick or too thin wall thickness. The pipe blank equal to the outer diameter of the elbow is used for the stamping forming of the elbow, and the press is used to press directly in the die. 3.Medium plate welding Use the medium plate to make half of the elbow section with a press, and then weld the two sections together. This process is generally used for elbows above DN700. LADHANI METAL CORPORATION, MUMBAI, INDIA Company Information Ladhani Metal Corporation. We are committed to integrate engineering steel resources in India and serve the global engineering steel market. Our company has more than 32 years of experience in steel researching, production, managing and sales. In the aspect of resources and information, we have established cooperative and stronger relationship with nearly hundred enterprises, either state-owned or private owned in India. What’s more, we have built long, deep and close business relationship with dozens of steel company, Sharing and holding equities with several steel enterprises. Because of the close cooperation with steel companies and our pioneering spirit, which can ensure us stay at the top competition, and ensure our customers get what they really want! 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Quality Standard Material No. Old designation DC01 DIN EN 10130 1.0330 ST 12-03 Cold-rolled flat steel DC01, according to the standards DIN EN 10130 and DIN EN 10152 Cold-rolled flat steel DC01 is a widely used material in the industrial sector, which is used for various applications in the cold forming process due to its excellent properties. The standards DIN EN 10130 and DIN EN 10152 are decisive for ensuring the quality and requirements of this material. DC01 according to the DIN EN 10130 standard The DIN EN 10130 standard defines the requirements for cold-rolled flat products made of unalloyed quality steels that are used in the cold forming process. Technical delivery conditions DIN EN 10130 specifies the technical delivery conditions for cold-rolled flat steel. These include the chemical composition, mechanical properties and surface quality. The standard ensures that the products supplied meet the required standards in order to guarantee workability and final quality. Chemical composition The chemical composition of the steel is decisive for its properties and is described in detail in DIN EN 10130. For DC01, the maximum carbon content is 0.12%, while the manganese and phosphorus content is also subject to specific limits. This composition ensures good cold formability and a high surface quality. Mechanical properties DC01 in accordance with DIN EN 10130 has specific mechanical properties that make it ideal for cold forming. These include a minimum tensile strength of 270-410 MPa and a minimum elongation of 28%. These properties allow the steel to be processed into complex shapes without cracking or breaking. Surface quality The surface quality is another aspect of DIN EN 10130. DC01 can be supplied in different surface finishes, such as smooth or matt. These variations allow adaptation to specific requirements of the end application, be it for decorative purposes or further coating processes. DC01+ZE according to the DIN EN 10152 standard The DIN EN 10152 standard extends the requirements of DIN EN 10130 to include specific conditions for electrolytically galvanized products. This standard is crucial for applications in which corrosion protection plays an important role. Technical delivery conditions DIN EN 10152 specifies the technical delivery conditions for electrolytically galvanized, cold-rolled flat products. In addition to the chemical composition and mechanical properties, these conditions also include the specific requirements for the zinc coating. Chemical composition and zinc coating The chemical composition of the base material DC01 generally remains unchanged, but an additional electrolytic zinc coating is applied. This coating is used for corrosion protection and varies in thickness depending on the specific requirements of the application. The standard provides detailed specifications for the thickness and uniformity of the zinc coating to ensure optimum protection. Mechanical properties Even with galvanized products, the mechanical properties of the base material are largely retained. The standard ensures that the cold formability and strength of the steel are not impaired despite the additional coating. Corrosion resistance and surface quality One of the main advantages of products manufactured in accordance with DIN EN 10152 is their improved corrosion resistance. Electrolytic galvanizing protects the steel from rust and thus increases the service life of the end product. The surface quality also plays a decisive role here and can be supplied in various finishes, such as smooth or textured. Conclusion Cold-rolled flat steel DC01, produced in accordance with the DIN EN 10130 and DIN EN 10152 standards, offers a number of advantages for applications in the cold forming process. While DIN EN 10130 defines the basic requirements for chemical composition, mechanical properties and surface quality, DIN EN 10152 extends these specifications to include specific conditions for electrolytically galvanized products that offer additional corrosion protection. Both standards together ensure that DC01 is a versatile material with high quality and durability. FOR EN 10130 DC01 CHEMICAL , MECHANICAL DATA SHEET KINDLY VISIT https://www.ladhanimetal.in/page/en-10130-2006-chemical-and-mechanical-composition/689c322d2e585e299cb43798 https://www.ladhanimetal.in/page/en-10130-cold-rolled-flat-sheet-plate-coil-data-sheet-equivalent-grade-and-chemical-and-mechanical-properties/68a45503fc14472bb274df32

Half Round Tube Shield Half Round Tube Shields by Ladhani Metal Corporation are high-performance protective components engineered to safeguard boiler tubes, heat exchanger coils, and superheaters from erosion, thermal fatigue, scaling, and corrosion. Widely used in thermal power plants, petrochemical units, and process heating systems, these shields offer reliable surface protection in extreme environments. Their half-round design allows quick installation over both curved and straight tube sections, extending tube life and minimizing maintenance requirements. Cr25Ni20 U Type Inner Half Round Tube Shield The Cr25Ni20 U Type Inner Half Round Tube Shield is made from a high-alloy chromium-nickel austenitic stainless steel that offers outstanding resistance to oxidation, carburization, and high-temperature corrosion. This alloy is well suited for environments involving thermal cycling and chemically aggressive gases. The inner U-type configuration is specifically designed to protect the inside curvature of U-bend tubes—where gas turbulence, thermal stress, and slag accumulation can lead to premature wear and damage. • Inner U Type Half Round Tube Shield – Designed to guard the inner arc of U-bend tubes against erosion, scaling, and oxidation under high thermal loads and gas flow impact. Ladhani Metal Corporation is a trusted manufacturer, supplier, and exporter of Cr25Ni20 U Type Inner Half Round Tube Shields, delivering precision-engineered solutions for demanding heat and corrosion environments. Chemical Composition of Cr25Ni20 – High Chromium-Nickel Austenitic Alloy • Carbon (C): ≤ 0.20% • Manganese (Mn): ≤ 2.00% • Phosphorus (P): ≤ 0.040% • Sulfur (S): ≤ 0.030% • Silicon (Si): ≤ 1.50% • Chromium (Cr): 24.0 – 26.0% • Nickel (Ni): 19.0 – 22.0% • Iron (Fe): Balance Applications: Ideal for high-temperature applications involving oxidizing, carburizing, or sulfidizing gases, where mechanical and chemical durability is critical. Uses • Shields inner arcs of U-bend tubes in boilers and superheaters exposed to oxidizing combustion gases • Protects return bends in waste heat recovery boilers (WHRBs) and heat recovery steam generators (HRSGs) • Applied in curved tubes in reformers, incinerators, and heat exchangers operating above 900°C • Used in chemical and petrochemical systems with chloride- or sulfur-laden atmospheres • Suitable for tube protection in high-temperature furnaces and metallurgical processes Features • Excellent high-temperature oxidation resistance – Performs reliably at sustained service temperatures up to 1150°C • Inner arc protection – Focused shielding of the bend area most affected by thermal cycling and gas turbulence • Corrosion and scaling resistance – Maintains integrity in aggressive chemical and flue gas environments • Precision engineering – Custom-manufactured to match specific tube diameter and bend geometry • Easy to install – Compatible with clamp-on, tack welding, or stainless steel banding • Durable and long-lasting – Reduces frequency of tube failures and downtime in critical systems Applications • power generation – Used in superheater U-bends where inner arcs are exposed to extreme thermal loads • petrochemical and fertilizer plants – Shields inner return bends in steam reformers and reactors • waste heat recovery – Installed in WHRBs and HRSGs to prevent scaling and oxidation on inner bend surfaces • chemical process industry – Protects U-bend tubes from acid vapors, hot gases, and corrosion • metallurgical industry – Ideal for inner arc protection in high-temperature treatment furnaces Conclusion The Cr25Ni20 U Type Inner Half Round Tube Shield by Ladhani Metal Corporation – manufacturer, supplier, and exporter – offers robust protection for U-bend tubes operating in high-temperature and corrosive environments. Its exceptional resistance to oxidation and thermal damage makes it ideal for critical industrial systems requiring long-lasting performance and reliability. For detailed specifications, custom fabrication, or quotations, please contact Ladhani Metal Corporation.

Half Round Tube Shield Half Round Tube Shields by Ladhani Metal Corporation are essential components engineered to protect boiler, superheater, reheater, and heat exchanger tubes from high-temperature damage, erosion, slag buildup, and corrosion. These shields are commonly used in thermal power plants, petrochemical systems, waste heat recovery units, and high-temperature industrial processes where curved tube sections are frequently exposed to hot flue gases and particulate-laden flow. The half-round shape ensures quick installation and effective protection without dismantling the tube system. U Type Outer Half Round Tube Shield The U type outer half round tube shield is specifically designed to cover and protect the outer arc of U-bend tubes — the area most vulnerable to heat, gas erosion, flame impingement, and slag accumulation. These shields are manufactured in a wide variety of stainless steel and heat-resistant alloy grades to meet specific temperature, corrosion, and wear resistance requirements across various industries. Ladhani Metal Corporation is a leading manufacturer, supplier, and exporter of U type outer half round tube shields in a full range of grades, offering precise fitment, durability, and reliable protection for curved tubes operating in extreme service environments. Available Grades • SS 304 – General-purpose stainless steel with good resistance to oxidation and moderate corrosion • SS 304L – Low-carbon version of SS 304 for better weldability and intergranular corrosion resistance • SS 316 – Molybdenum-enhanced alloy for superior resistance to chloride pitting and chemical corrosion • SS 316L – Low-carbon variant of SS 316 for enhanced corrosion resistance in welded conditions • SS 310 – High-temperature austenitic stainless steel with excellent oxidation resistance • SS 310S – Low-carbon SS 310 version suitable for thermal cycling and stress-resistance • SS 410 – Martensitic stainless steel with good mechanical strength and wear resistance • SS 420 – High-hardness martensitic steel for erosion-prone environments • SS 430 – Ferritic stainless steel suitable for mild oxidizing conditions and cost-effective applications • 1Cr13 – Martensitic stainless steel ideal for mechanical protection and moderate corrosion resistance • 1Cr18Ni9Ti – Titanium-stabilized alloy resistant to intergranular corrosion and heat stress • Cr23Ni13 – Austenitic heat-resistant alloy with excellent scaling and oxidation resistance • Cr25Ni20 – High-alloy grade for extreme heat and corrosive gas exposure • 1Cr25Ni20Si2 – Silicon-enhanced alloy for high-temperature stability and anti-scaling performance • 1Cr20Ni14Si2 – High-temperature grade with superior thermal fatigue and oxidation resistance Applications • Protection of U-bend outer arcs in superheaters and reheaters of thermal power plants • Shielding of curved tube sections in waste heat recovery boilers (WHRBs) and HRSGs • Flame-side defense for tube bends in petrochemical heaters, steam reformers, and exchangers • Slag and soot protection in return bends of industrial furnaces, incinerators, and kilns • Coverage for U-bend tubes in chemical and refinery plants exposed to acidic or oxidizing gases Features • Full outer arc coverage – Shields the most heat-exposed and erosion-prone section of U-bend tubes • Grade versatility – Available in multiple material options for specific temperature and corrosion demands • Excellent heat and oxidation resistance – Performance stability in conditions up to 1100°C+ depending on grade • Precision fitment – Custom-manufactured to match tube diameter, radius, and system design • Easy to install – Mountable via stainless steel bands, clamps, or tack welds without disassembly • Long-lasting durability – Reduces frequency of tube failure, improving system efficiency and safety Conclusion The U Type Outer Half Round Tube Shield by Ladhani Metal Corporation—manufacturer, supplier, and exporter—is available in a complete range of stainless steel and heat-resistant alloy grades to suit any industrial application. These shields provide robust, reliable protection for the outer arc of U-bend tubes exposed to high temperatures, corrosive gases, and erosive flows. With grade-specific performance, precision fabrication, and simple installation, they are a proven solution for extending tube service life in critical systems. For technical support, customized dimensions, or quotations, please contact Ladhani Metal Corporation.

Half Round Tube Shield Half Round Tube Shields by Ladhani Metal Corporation are specially engineered to protect boiler, superheater, and heat exchanger tubes from surface wear, high-temperature scaling, flue gas erosion, and slag buildup. These shields are widely used in thermal power plants, waste heat recovery systems, and high-temperature industrial processes. Designed in a half-round profile, they ensure secure and easy installation over curved or straight tubes, extending tube service life and reducing maintenance interruptions. Cr23Ni13 U Type Outer Half Round Tube Shield The Cr23Ni13 U Type Outer Half Round Tube Shield is manufactured from a high-alloy austenitic stainless steel containing approximately 23% chromium and 13% nickel. This alloy provides superior resistance to oxidation, high-temperature corrosion, and thermal fatigue. The outer U-type shield is designed to protect the external curvature of U-bend tubes, which are often exposed to the harshest operating conditions—such as direct flame impingement, slag attack, and aggressive flue gas streams. • Outer U Type Half Round Tube Shield – Offers targeted protection for the outer arc of U-bend tubes, shielding against intense heat, slag erosion, and high-velocity gas flow. Ladhani Metal Corporation is a trusted manufacturer, supplier, and exporter of Cr23Ni13 U Type Outer Half Round Tube Shields, offering durable, high-performance solutions for critical thermal and chemical environments. Chemical Composition of Cr23Ni13 – High-Alloy Austenitic Stainless Steel • Carbon (C): ≤ 0.08% • Manganese (Mn): ≤ 1.50% • Phosphorus (P): ≤ 0.040% • Sulfur (S): ≤ 0.030% • Silicon (Si): ≤ 1.50% • Chromium (Cr): 22.0 – 24.0% • Nickel (Ni): 12.0 – 14.0% • Iron (Fe): Balance Applications: Ideal for high-temperature, oxidizing, and corrosive environments requiring strong thermal stability, scale resistance, and long-term tube protection. Uses • Shielding U-bend outer arcs in superheaters and reheaters exposed to direct flame and thermal cycling • Protection of return bends in waste heat recovery boilers (WHRBs) and heat recovery steam generators (HRSGs) • Coverage for high-temperature bends in petrochemical process heaters and cracking units • Applied in radiant coils and furnace tubes operating under oxidizing and high-velocity gas environments • Suitable for metallurgical, cement, and gas processing industries with extreme thermal conditions Features • Excellent oxidation and corrosion resistance – High chromium and nickel content ensures scale resistance in aggressive atmospheres • High thermal stability – Performs reliably at temperatures exceeding 1100°C, with resistance to thermal fatigue and distortion • Outer bend protection – Specifically guards the most vulnerable surface of the U-bend against slag and flame exposure • Custom fitment – Manufactured to match precise tube diameters and bend radii for tight, stable installation • Easy to install – Mountable with clamps, tack welds, or stainless bands without system disassembly • Long service life – Reduces frequency of tube replacement, enhancing system reliability and uptime Applications • thermal power plants – Used on outer arcs of U-bend tubes in boilers and superheaters to protect against slag and oxidation • petrochemical plants – Shields return bends in high-temperature heaters exposed to process gas erosion and carburization • waste heat recovery – Protects bends in WHRBs and HRSGs subjected to hot gas streams and temperature fluctuations • industrial furnaces – Installed in radiant sections and high-temperature piping in incinerators and process furnaces • cement and metallurgy industries – Applied to bends exposed to flame, dust, and thermal cycling under extreme heat Conclusion The Cr23Ni13 U Type Outer Half Round Tube Shield by Ladhani Metal Corporation—manufacturer, supplier, and exporter—is a robust, heat-resistant solution for protecting the outer curvature of U-bend tubes in aggressive thermal environments. With high oxidation resistance, thermal stability, and long-term structural durability, this shield is ideal for demanding applications in power, chemical, and industrial sectors where performance and reliability are critical. For technical consultation, custom orders, or quotations, please contact Ladhani Metal Corporation.