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'blind plates'

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blind flanges

A DIN 2527 AISI 8630 blind flange is a specialized type of blind flange made from AISI 8630 alloy steel, designed according to the DIN 2527 German standard. Blind flanges are essential components in industrial piping systems, used to seal the end of a pipe, vessel, or valve to isolate it or prevent the flow of fluids. The AISI 8630 material used for this specific flange provides excellent strength, toughness, and wear resistance, making it ideal for applications in high-stress environments. Material: AISI 8630 Alloy Steel AISI 8630 is a low-alloy steel, enriched with nickel, chromium, and molybdenum for enhanced mechanical properties. It is known for its strength, toughness, and resistance to wear, making it suitable for heavy-duty applications, particularly in industries where components are subjected to high stress and pressure. Composition of AISI 8630: Carbon (C): 0.30% – 0.35% Provides strength and hardness. Chromium (Cr): 0.80% – 1.10% Improves hardness, wear resistance, and high-temperature strength. Molybdenum (Mo): 0.15% – 0.25% Enhances hardenability and resistance to wear. Nickel (Ni): 0.80% – 1.20% Adds toughness, especially at lower temperatures. Other elements: Small amounts of manganese (Mn), silicon (Si), and phosphorus (P), which improve the overall material quality and processing properties. Design and Dimensions (DIN 2527) Shape: The blind flange is a flat, circular plate with no central hole, designed to seal the open end of a pipe, valve, or vessel. Bolt Holes: The flange features evenly spaced bolt holes around the perimeter, which allow it to be securely attached to a matching flange or component. These holes align with the bolt pattern of the corresponding system components. Thickness: The thickness of the flange varies depending on the size and pressure rating, ensuring it can withstand internal pressure and provide a reliable seal. Pressure Rating: Pressure ratings are typically defined using classes such as PN 6, PN 10, PN 16, PN 25, etc., which represent the maximum pressure the flange can safely withstand without failure. Applications of DIN 2527 AISI 8630 Blind Flange Pipeline Sealing: The primary function of the blind flange is to seal the end of a pipeline, effectively preventing the passage of fluids, gases, or other materials. System Isolation: It is used to isolate sections of the pipeline for maintenance or repairs, allowing safe disconnection without compromising the integrity of the system. Pressure Containment: The high strength and durability of AISI 8630 make it suitable for applications where maintaining pressure within the system is critical, ensuring the flange can handle high-pressure environments. Types of Blind Flanges in DIN 2527 Blind flanges conforming to DIN 2527 can be found in different face types and sealing methods, including: Raised Face (RF): The flange surface has a slight raised area around the bolt circle, improving the seal when mated with a gasket. Flat Face (FF): The surface is level with the flange body and typically used with softer gaskets to create a seal. Ring Type Joint (RTJ): This type has a groove to accommodate a metal ring gasket, providing a secure seal in high-pressure applications. Conclusion A DIN 2527 AISI 8630 blind flange is a high-strength, durable sealing component designed for high-pressure and high-stress environments. Made from AISI 8630 alloy steel, it offers excellent mechanical properties such as strength, toughness, and wear resistance, making it ideal for use in industrial systems that require reliable seals under heavy loads and elevated temperatures.

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Blind Flanges

Super Duplex Stainless Steel (SDSS) is an advanced type of Duplex Stainless Steel that combines the benefits of both austenitic and ferritic structures but with higher levels of chromium, nickel, and molybdenum, along with additional nitrogen content. This makes Super Duplex Stainless Steel (such as Super Duplex 2507) an ideal material for extremely demanding environments, particularly those exposed to harsh corrosive conditions. Material: Super Duplex Stainless Steel Superior Corrosion Resistance: Super Duplex stainless steels (e.g., 2507) offer exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking (SCC), especially in environments with high chloride exposure. This makes them perfect for use in seawater, chemical processing, and offshore oil and gas applications. Strength: Super Duplex steels provide significantly higher tensile strength than standard Duplex and austenitic grades (such as 304 and 316), making them ideal for high-pressure and heavy-duty applications. Super Duplex steel has roughly twice the strength of 304 or 316 stainless steels. Temperature Resistance: Super Duplex stainless steels maintain good performance at moderate to high temperatures, typically performing well up to around 300°C (572°F). They can endure high-temperature environments but are not suitable for extreme high-temperature applications (e.g., above 400°C). Resistance to Chloride Stress Corrosion Cracking (SCC): Super Duplex stainless steels are particularly resistant to chloride-induced stress corrosion cracking, which is a significant advantage in industries that face exposure to seawater, brine, or other chloride-rich environments. Common Types of DIN 2527 Super Duplex Stainless Steel Blind Flanges: 1.4410 (F53): Offers excellent resistance to corrosion, high strength, and toughness, widely used in oil & gas, marine, and chemical industries. 1.4501 (F55): Higher alloy content, offering superior resistance to pitting and stress corrosion cracking, often used in subsea and offshore applications. 1.4412 (F60): Known for resistance to extreme environments like offshore and petrochemical industries. Design and Dimensions Shape: DIN 2527 blind flanges made from Super Duplex Stainless Steel follow the same general design as other flanges: flat, round plates with no central hole, used to seal the ends of pipes or pressure vessels. Bolt Holes: These flanges are equipped with bolt holes for bolting to other flanged components, ensuring a secure connection. The number and size of the bolt holes are determined by the flange's diameter and the pressure class. Thickness: The flange thickness varies depending on the pressure rating (e.g., PN 6, PN 10, PN 16, PN 25). Thicker flanges are designed to handle higher pressures, ensuring a secure seal and reliable performance. Pressure Rating: Super Duplex stainless steel blind flanges are designed for high-pressure environments. Due to their strength and resistance to corrosion, they are typically used in PN 10, PN 16, and PN 25 pressure ratings, although they can be designed for even higher pressure ratings depending on the application. Types of Blind Flanges in DIN 2527 (Super Duplex) Raised Face (RF): The raised face provides a contact area for a gasket, enhancing the sealing performance. This type of flange is commonly used with a gasket to improve sealing, particularly in systems that operate under high pressure. Flat Face (FF): The face of the flange is level with the surface and is often paired with a soft gasket to provide a tight seal. This design is typically used for low-pressure applications where sealing is not as critical. Ring Type Joint (RTJ): This type of flange features a groove for a metallic gasket, providing a secure seal under high pressure and harsh conditions. RTJ flanges are typically used in offshore oil and gas or chemical plants, where extreme conditions require highly durable sealing methods.

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Blind Flanges

When considering Duplex Stainless Steel for DIN 2527 Blind Flanges, the material offers unique advantages over traditional stainless steels, combining the benefits of both austenitic and ferritic microstructures. Duplex Stainless Steel typically contains a higher percentage of chromium, molybdenum, and nitrogen, which significantly enhances its properties, especially for highly demanding and corrosive environments. Material: Duplex Stainless Steel Superior Corrosion Resistance: Duplex stainless steels (e.g., 2205 or 2507) offer outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking, which makes them highly suitable for industries exposed to aggressive environments, such as offshore oil and gas, chemical processing, and marine industries. Strength: Duplex stainless steels have higher tensile strength than standard austenitic steels (such as 304 or 316), allowing the flange to perform under higher mechanical stress and pressure. The material is typically twice as strong as conventional 304 and 316 stainless steels. Temperature Resistance: Duplex materials offer good performance in high-temperature environments, although not as high as some alloys specifically designed for extreme heat (e.g., Inconel). They perform well in moderate to high-temperature applications. Resistance to Chloride Stress Corrosion Cracking (SCC): Duplex steels are particularly resistant to chloride-induced stress corrosion cracking, which is one of the key benefits in applications exposed to chloride-rich environments, such as seawater. Common types of duplex stainless steel blind flanges include: 1.4462 (F51): Standard duplex steel, offering good corrosion resistance and strength, used in chemical, oil & gas, and marine industries. 1.4410 (F53): Super duplex steel, with higher strength and better corrosion resistance, used in offshore and high-pressure applications. 1.4539 (Alloy 20): Highly resistant to acid and chloride environments, used in chemical processing and power generation. Design and Dimensions Shape: Blind flanges in DIN 2527, regardless of the material (Stainless Steel 316 or Duplex), are flat, round plates without a central hole, used to close off the ends of pipes or pressure vessels. Bolt Holes: Like other blind flanges, duplex flanges come with bolt holes for bolting the flange to a mating flanged component. The bolt holes' number and size depend on the flange's diameter and the pressure class. Thickness: The thickness varies according to the pressure rating (e.g., PN 6, PN 10, PN 16, PN 25). Thicker flanges are designed for higher-pressure applications to maintain a secure and tight seal. Pressure Rating: Duplex stainless steel blind flanges are often used in high-pressure environments due to their strength. The specific pressure ratings depend on the material grade (e.g., Duplex 2205, Super Duplex 2507), but they generally exhibit higher pressure resistance than austenitic stainless steels like 316. Types of Blind Flanges in DIN 2527 (Duplex) Raised Face (RF): A raised face provides a contact area for the gasket, enhancing the sealing performance when paired with a gasket. Flat Face (FF): The face of the flange is level with the surface, which is suitable for softer gaskets that offer a tight seal without excessive pressure. Ring Type Joint (RTJ): For high-pressure applications, Duplex stainless steel blind flanges can feature a groove for a metallic gasket. This design ensures a tight seal under extreme conditions, often used in offshore and chemical plant environments. Benefits of Duplex Stainless Steel Blind Flanges Cost-Efficiency: While Duplex steels can be more expensive than austenitic grades, they offer a better cost-to-performance ratio due to their enhanced durability and strength, leading to longer service life and reduced maintenance costs. Improved Mechanical Properties: Duplex steels' unique composition offers a blend of high tensile strength and excellent corrosion resistance, making them perfect for demanding environments where other materials might not perform as well.

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Blind Flanges

DIN 2527 is a German standard that defines the dimensions, design, and tolerances for flanges, including blind flanges. Blind flanges made of stainless steel 316 are commonly used in piping systems to seal the ends of pipes, providing a secure and reliable closure. Here's a detailed description of DIN 2527 Stainless Steel 316 Blind Flanges: Material: Stainless Steel 316: This is a higher grade of stainless steel compared to 304, offering superior corrosion resistance. Stainless steel 316 contains molybdenum, which enhances its resistance to corrosion, particularly against chlorides, making it ideal for environments with higher risks of corrosion, such as seawater, chemicals, and marine environments. Corrosion Resistance: Stainless steel 316 has excellent resistance to a wide range of chemicals and industrial environments. Temperature Resistance: It can withstand higher temperatures compared to 304 stainless steel, making it suitable for high-temperature applications. Strength: Stainless steel 316 has slightly higher tensile strength compared to 304, offering added durability and structural integrity. Design and Dimensions: Shape: Blind flanges are flat, round plates with no center hole, used to seal the end of a pipe or pressure vessel. Bolt Holes: These flanges have bolt holes to align with bolts for connecting to other flanged components. The number and size of bolt holes depend on the diameter of the flange and the pressure class. Thickness: The thickness of DIN 2527 blind flanges varies depending on the pressure class (PN 6, PN 10, PN 16, PN 25, etc.). Thicker flanges can handle higher pressure ratings and provide a more secure seal. Pressure Rating: Similar to other flanges, the pressure rating for DIN 2527 blind flanges is important for determining the maximum pressure they can withstand without failure. Stainless steel 316 flanges can be designed to withstand high-pressure applications. Applications: Sealing: Blind flanges made of stainless steel 316 are used to seal the end of a pipeline or vessel to prevent fluid leakage, effectively creating a closed system. System Isolation: These flanges are used to isolate sections of a piping system for maintenance or modification, allowing for safe shutoff of pressure or fluid flow. High-Corrosion Environments: Due to the superior corrosion resistance of stainless steel 316, these blind flanges are used in industries where exposure to corrosive materials, saltwater, or harsh chemicals is a concern (e.g., chemical processing, marine, pharmaceutical, food processing). Types of Blind Flanges in DIN 2527: Raised Face (RF): The face of the flange is slightly raised to improve the sealing capability when paired with a gasket. Flat Face (FF): The face of the flange is level with the surface, often used with softer gaskets for a secure seal. Ring Type Joint (RTJ): For applications requiring high pressure, a ring-type joint may be used, which features a groove in the flange for a metallic gasket.

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Titanium Sheet

Product name:Titanium sheet metal Unit price:$14-$36.9/kg Material: Titanium grade 1 grade 2 grade 3 grade 4 Grade 5 (Ti6al4v),grade 7,grade 12 etc. Standard: ASTM/ASME B265 AMS 4911 ASTM F136 ASTM F67 etc. Demension: Thickness*1000*2000mm Thickness*3000*6000mm (Standard size); Thickness: 0.5mm; 0.8mm; 1.0mm; 1.2mm; 1.5mm; 2.0mm; 3.0mm; 4.0mm ......40mm etc br>Technique : Rolled Status: Annealed(M) Titanium has many obviously superior characteristics: small density (4.5kg/m3), high melting point (1660℃), strong corrosion resistance, high specific strength, good plasticity, but also through alloying and heat treatment methods to produce a variety of alloys with high mechanical properties, is an ideal aerospace engineering structural materials. Titanium sheet metal are commonly used in today's manufacturing industry, and the most commonly used grades are 2 and 5. Grade 2 titanium Grade 2 is commercial pure titanium used in most chemical processing plants and can be cold formed. Ultimate tensile strength of grade 2 plates and sheets up to 40,000 psi and above. Grade 5 titanium Class 5 is an aerospace class that does not allow cold molding and is therefore used more often when molding is not required. Grade 5 aerospace alloys have ultimate tensile strength of 120,000 psi and above. Usually the purpose of using Titanium sheet metal is to really approximate the final size of the part being manufactured. The material is processed to the nearest size of the required parts and the grain structure of the finished product is more uniform. Titanium plates are often used as insulation because titanium prevents heat from being transferred to the rest of the assembly. The titanium plate and titanium plate are bulletproof and provide good protection for the driver during the race. Application example: in addition to the use of industrial pure titanium manufacturing parts, a large number of titanium alloy is used. It is increasingly widely used in aerospace, aerospace, chemical, shipbuilding and other industrial sectors, manufacturing gas turbine components, the production of prosthetic devices and other biological materials

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Gr2 Titanium Dish Head

Standard: ASME VIII-I, DIN28013 Material: GR1, GR2, GR5, GR7, GR12 Size: Customized Gr2 Titanium Dish Head Product Information Titanium dish head is the end cap on the pressure vessel and is a main pressure-bearing part of the pressure vessel. The role played is the sealing effect. First, the upper and lower bottoms of the tank-shaped pressure vessel are made, and the second is that the pipe is at the end and is not going to extend forward. Then a titanium dish head is used to seal the pipe in the form of welding. There are blind plates and caps that are similar to the functions of titanium dish head, but those two products can be disassembled. After titanium dish head is welded, it cannot be disassembled. So the quality of titanium dish head is directly related to the long-term safe and reliable operation of the pressure vessel. Standard: ANSI/ASME, DIN, GB, EN, JIS, MSS, API, BS, AWWA, GOST etc. Grade: GR1, GR2, GR5, GR7, GR12 OD: 300-2500mm Thickness: 2-300mm Production Process: Cold Forming, Hot Forming Surface Treatment: Sand Blasting, Pickling, Coating etc. Applications: Heat Exchanger, Condenser, Pressure Vessel, Reactor, Storage Tank, Boiler, Absorber etc

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Gr1 Titanium Seamless Tube

Product name: Gr1 Titanium seamless tube Standard:ASTM B338 Material:Grade 1 titanium Diameter:5-914mm Wall thickness:0.5-10mm Length:Max 16000mm Surface:Pickling surface/Polished Type:Seamless, welded Application:Heat Exchanger, chemical industry etc. Technique:Rolled Gr1 Titanium seamless tube The production process of titanium seamless pipe is complex. Three roll or multi roll rolling mill and drawing machine are usually used to roll or draw a certain specification of pipe blank through multiple passes, and finally produce seamless pipe after reducing diameter and wall. The production efficiency and yield of this process are low. Titanium seamless pipe from sponge titanium to pipe, through rolling or drawing, the material waste is large, the yield is only about 50%, and can not achieve mass production, and the production cycle is relatively long. Product name Titanium seamless tube Standard ASTM B861, ASTM B337, ASTM B338 Size OD5.0-114.0mmxWT0.5-7.0mmx1000-12000mm OD55mm-914mmxWT1.0-10.0mmx1000-6000mm Or according customer’s requirement. Material Titanium(Gr1, Gr2, Gr5, Gr7,Gr9,GR12) Technique Rolled Status Annealled Surface Acid wash,bright Application Exhaust pipe; exhaust pipe, petroleum pipeline;Sea farming; electroplating equipment;Fluid Transportation Piping etc. Certificate ISO9001:2008, TUV, EN10204.3.1 Types Out diameter Sizes Length NB Sizes (in stock) .0035” ~ 8” 1/8", 1/4", 3/8", 1/2", 5/8", 3/4", 1", 1.25", 1.5", 2", 2.5", 3", 4", 5", 6" Cut to length Titanium Seamless Tube (Custom Sizes) 6.35 mm OD To 101.6 mm OD As per requirement Cut to length Titanium seamless pipe features: 1. The thicker the wall thickness is, the more economical and practical it is. The thinner the wall thickness is, the higher its processing cost will be 2. The process of titanium seamless pipe determines its limited performance. Generally, the precision of seamless steel pipe is low, the wall thickness is uneven, the brightness of the inner and outer surface of the pipe is low, the sizing cost is high, and there are pockmarks and black spots on the inner and outer surface, which are not easy to remove 3. Its detection and shaping must be processed offline. Therefore, it embodies its advantages in high pressure, high strength and mechanical structure materials.

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LADHANI METAL CORPORATION Our company offer wide assortment of Super Duplex Spectacle Blind Flanges in both standard and customized dimensions. These are internal ridges used in the attachments of industrial objects. Offered flanges find their application in different engineering industries. Our flanges are known for their optimum holding strength, high tensile strength and durability. These flanges are available at industry leading prices. Moreover, we assure effective and timely delivery of our products. Feature: Longer service life Fine finishing Attractive designs Super Duplex spectacle Blind Flanges : Description: Super Duplex Steel Flanges: Size : Size: 1/2” to 48” Class : 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS DIN Standard ND-6, 10, 16, 25, 40 Etc. SPECIFICATIONS AS PER THE INTERNATIONAL STANDARD ASTM, ASME, API, AISI, BS, ANSI, DIN, JIS, MSSP, NACE Facing: RF/FF/RTJ MATERIALS : Super Duplex Steel Flanges ASTM A 182 – F 51 UNS S31803, S32750, S31500 Application: Aerospace, Nuclear Engineering, Chemical Industry, Heat Treating Industry Packing: in plywood case,

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LADHANI METAL CORPORATION Our company offer wide assortment of Super Duplex Spectacle Blind Flanges in both standard and customized dimensions. These are internal ridges used in the attachments of industrial objects. Offered flanges find their application in different engineering industries. Our flanges are known for their optimum holding strength, high tensile strength and durability. These flanges are available at industry leading prices. Moreover, we assure effective and timely delivery of our products. Feature: Longer service life Fine finishing Attractive designs Super Duplex spectacle Blind Flanges : Description: Super Duplex Steel Flanges: Size : Size: 1/2” to 48” Class : 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS DIN Standard ND-6, 10, 16, 25, 40 Etc. SPECIFICATIONS AS PER THE INTERNATIONAL STANDARD ASTM, ASME, API, AISI, BS, ANSI, DIN, JIS, MSSP, NACE Facing: RF/FF/RTJ MATERIALS : Super Duplex Steel Flanges ASTM A 182 – F 51 UNS S31803, S32750, S31500 Application: Aerospace, Nuclear Engineering, Chemical Industry, Heat Treating Industry Packing: in plywood case,

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