Carbon Steel Blind Flanges
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Carbon Steel Blind Flanges
EBY Fasteners provides a wide selection of Carbon Steel Blind Flanges, expertly crafted to meet the diverse needs of your piping systems. Whether terminating a pipeline, isolating equipment, or conducting pressure tests, our flanges offer reliable sealing performance under various operating conditions
Let our team help you find the perfect fit. We’ll guide you through selecting the ideal carbon steel grade, flange class, and surface finish to ensure seamless compatibility and long-term dependability within your system
Choose EBY Fasteners for your Carbon Steel Blind Flange requirements. Experience our commitment to quality, flexibility in meeting your unique specifications, and competitive pricing. Contact us today and let us simplify your flange procurement process
Choose EBY Fasteners for your Carbon Steel Blind Flange requirements. Experience our commitment to quality, flexibility in meeting your unique specifications, and competitive pricing. Contact us today and let us simplify your flange procurement process
- ASTM A105 : This grade is the most widely used in carbon steel flange construction due to its balanced properties and cost-effectiveness. It offers excellent weldability, moderate strength, and good toughness, making it suitable for many general-purpose and high-pressure applications
- ASTM A350 : Flanges made from ASTM A350 grades, especially LF2, excel in low-temperature environments. These grades are formulated to retain their impact toughness, resisting embrittlement even when temperatures plunge. This makes them indispensable for piping systems in cold climates, cryogenic applications, or any setting where temperature fluctuations could compromise standard carbon steels
- ASTM A694 : This standard encompasses various grades of high-yield strength carbon steel specifically designed for flanges and other forged fittings. Grades like F52 or F60 offer significantly higher levels of strength compared to A105, making them ideal for pipelines handling extremely high pressures or systems where heavy mechanical loads are a concern
- ASTM A1015 and A182 : While not universally applicable to all flange types, ASTM A1015 and A182 often find use in the manufacture of carbon steel blind flanges. These flanges are primarily designed to seal off or terminate a piping system, sometimes acting as temporary placeholders. Specific grade selection depends on compatibility with the system's operating pressures, temperatures, and the nature of any fluids present
- Important Notes :
- Corrosive Environment : If the flange will be exposed to corrosive fluids or gases, you may need to consider stainless steel or other alloyed materials instead of plain carbon steel. Always consult corrosion compatibility charts when selecting a grade for these environments
- Industry Standards : Specific industries and applications may have their own standards or regulations governing the material selection for flanges. Ensure that the grade you select meets the relevant industry standards for your project
- Material : Carbon steel is a versatile material with various grades offering different strengths, temperature resistance, and corrosion resistance. Selecting the appropriate grade is critical for ensuring the flange meets the specific demands of its intended application. Consultation with the manufacturer or reference to industry standards can guide the optimal grade choice
- Standard : ANSI B16.5 plays a vital role beyond just dimensional conformity. It dictates material specifications, allowable tolerances, testing procedures, and marking requirements – all contributing to the flange's quality, performance, and safety in demanding industrial environments
- Size : The 24-inch nominal diameter indicates its use in large-scale piping systems. These flanges are often found in power plants, chemical processing facilities, and oil refineries, managing high-volume fluid or gas flow
- Class : While Class 150 flanges are used for moderate pressures, it's important to remember that pressure ratings decrease as temperature increases. Referencing the manufacturer's pressure-temperature charts will ensure you operate the flange safely within its design limits
- Ends : Beveled ends are specifically designed for butt-welding. The bevel angle must conform to ASME B16.25 to create a strong, uniform weld joint. During installation, it's vital to ensure that the matching pipe has a compatible wall thickness, preventing structural weakness and potential failure points at the weld
- Bevel End Details : Adherence to ASME B16.25 ensures the proper bevel angle, dimensions, and surface finish. These factors are interconnected, as a subpar surface finish can make a sound weld difficult, leading to leaks or premature failure under stress
- Bore : Matching the bore to the connecting pipe's geometry is essential for smooth, efficient flow. Deviations or misalignments create flow disturbances that can cause premature wear, erosion, and even increase the risk of leaks along the piping system
- Finish : The serrated finish, defined by the 125 AARH surface roughness, ensures reliable gasket performance. The microscopic peaks and valleys create an optimal surface for the gasket to engage, facilitating a highly effective seal under pressure
- Galvanization : Hot-dip galvanizing provides sacrificial corrosion protection. The zinc coating will corrode before the underlying steel, extending the flange's lifespan significantly. This is particularly beneficial in outdoor installations, humid environments, or applications involving corrosive chemicals
- Screwed Ends : Taper threads meticulously conforming to ASME/ANSI and IS standards guarantee a leak-free connection and strong mechanical integrity when joining the flange to threaded pipes or components. Precise thread geometry is key to achieving the required tightness within the tolerances of industrial installations
- Hardness : The 140 BHN value indicates a material hardness tuned for resisting wear and tear. This is particularly valuable in areas where abrasive fluids or particles may be passing through the flange, as increased hardness prevents premature erosion and ensures reliable long-term performance
- Provides Termination or Isolation : The primary function of a blind flange is to seal or block off a pipeline. This can be used for terminating a line, isolating a section of piping for maintenance, or facilitating pressure testing
- Robust Carbon Steel Construction : Offers strength, durability, and can be selected in various grades to match the operating pressures, temperatures, and corrosive environments of specific applications
- Industry Standard Compliance : Adherence to standards like ASME B16.5 and MSS SP-44 ensures compatibility, dimensional accuracy, and reliable pressure ratings
- Flange Face Options : Available with raised face, flat face, or ring-type joint (RTJ) surfaces to match the mating flange and gasket type, optimizing sealing performance
- Size and Pressure Class Variety : Carbon steel blind flanges come in a wide range of sizes (nominal pipe size) and pressure classes, accommodating different pipe dimensions and pressure requirements within diverse industrial systems
- Customization Potential : EBY Fasteners can tailor carbon steel blind flanges with special coatings, surface finishes, or non-standard dimensions for unique project needs
- Refinery and Petrochemical : In refineries and petrochemical plants, carbon steel blind flanges are essential tools for terminating unused lines, isolating sections of piping for maintenance or modifications, and conducting pressure tests to verify system integrity
- Chemical : Carbon steel blind flanges are indispensable in chemical processing, used for blocking process lines during equipment changes or maintenance, isolating hazardous materials for safety, and ensuring reliable operation through pressure testing of vessels and piping
- Oil and Gas : The oil and gas industry relies heavily on carbon steel blind flanges. They are employed for temporarily sealing wellheads, isolating pipeline sections for repairs or modifications, and verifying pipeline integrity through pressure testing before commissioning
- Power Plant : Carbon steel blind flanges contribute to the safe and efficient operation of power plants. These flanges are used to terminate auxiliary lines, isolate major components like boilers and turbines for maintenance, and facilitate pressure testing of critical systems
- Industrial Machineries : In the world of industrial machinery, carbon steel blind flanges are found sealing hydraulic lines during maintenance, isolating components for safe disassembly, and enabling pressure testing of lubrication and fluid systems to ensure their proper function
Chemical Composition
| Element | Composition |
|---|---|
| Carbon | 0.35% |
| Manganese | 1.05% |
| Sulfur | 0.04% |
| Silicon | 0.15-0.30% |
| Copper | 0.40% |
| Nickel | 0.40% |
| Chromium | 0.30% |
| Molybdenum | 0.12% |
