In a fast-evolving industry, Prime Steel Industries remains adaptive, ensuring that its products and services align with the dynamic demands of the market.
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Prime Steel Corporation is a trusted ASME & ANSI B16.5 Flanges & Pipe Fittings Manufacturer & Supplier in the United States, supplying premium-quality industrial piping products to customers across the energy, petrochemical, chemical processing, power generation, marine, pharmaceutical, food processing, construction, and infrastructure sectors. With extensive manufacturing capabilities and a strong global export network, we provide reliable piping solutions that meet the demanding requirements of industrial projects throughout the United States.
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The ANSI/ASME B16.5 and B16.47 flange specifications have their origins in the earlier B16.1 specification. B16.1 primarily dealt with cast iron flanges, and as industrial needs evolved.
Read MoreDeutsches Institute fur Normung flange specification, consisting of a variety of European styles that have been unified into one code for commonality.
American Petroleum Institute flanges and fittings are referenced under API 6A and utilized for high-pressure oilfield applications.
“JIS” Stands for Japanese Industrial Standard and is published by the Japanese Standards Association (JSA), the equivalent of ANSI in the United States.
Read MoreAmerican Water Works Association flanges are the exact opposite of the API flanges and can be found in various assemblies in which temperature is ambient and media is not corrosive.
Read MoreGOST refers to the national standards system used in Russia and other countries that were part of the former Soviet Union. These standards are set by the Federal Agency.
Read MoreIn the realm of piping systems and engineering, terms like "Flange Pressure Class," "Flange Class Rating," and "Flange Class" are often employed interchangeably to denote the pressure rating or class designation of a flange. This class rating is a pivotal parameter, specifying the pressure at which a flange can safely operate within a given system. A typical representation includes the class number followed by symbols like ‘#’, ‘Lb’, or ‘lbs’ – for instance, a "Class 150#" flange denotes a pressure rating of 150 pounds per square inch (psi).
Flanges are classified into different pressure classes to specify their maximum working pressure and are designed to suit different pressure ratings. The pressure class is an important factor in determining the appropriate flange for a specific application. The working pressure depends on various factors, including the material, temperature, and other design considerations.
If you need precise information about the working pressure for a Class 1500 flange, it is essential to consult the industry standards ASME/ANSI B16.5 for flanges. The standards or manufacturer's documentation will provide the necessary details regarding the maximum allowable working pressure for a Class 1500 flange under specific conditions.
The '#' symbol is used to indicate pounds, so it's as "150 pounds per square inch." Commonly used in low-pressure applications such as water supply, heating, and general industrial processes.
Read MoreThe '#' symbol is used to indicate pounds, so it's as "300 pounds per square inch." Suitable for moderate-pressure applications in industries like chemical processing and oil refineries.
Read MoreThe '#' symbol is used to indicate pounds, so it's as "600 pounds per square inch." Used in higher-pressure applications where increased strength and reliability are required, such as in power plants.
Read MoreThe '#' symbol is used to indicate pounds, so it's as "900 pounds per square inch." Employed in demanding applications with higher pressure requirements, and high-temperature processes.
Read MoreThe '#' symbol is used to indicate pounds, so it's as "1500 pounds per square inch." Designed for severe service conditions, often found in the chemical and petrochemical industries.
Read MoreThe '#' symbol is used to indicate pounds, so it's as "2500 pounds per square inch." Reserved for high-pressure applications, such as those found in critical processes within the oil & gas industry.
Read MorePrime Steel Corporation is a trusted ASME & ANSI B16.5 Flanges & Pipe Fittings Manufacturer & Supplier in the United States, supplying premium-quality industrial piping products to customers across the energy, petrochemical, chemical processing, power generation, marine, pharmaceutical, food processing, construction, and infrastructure sectors. With extensive manufacturing capabilities and a strong global export network, we provide reliable piping solutions that meet the demanding requirements of industrial projects throughout the United States.
The United States is home to one of the world's largest industrial economies, with thousands of refineries, LNG terminals, chemical plants, manufacturing facilities, and power generation projects requiring high-quality piping components. Whether for new EPC projects, plant expansions, maintenance shutdowns, or replacement applications, our flanges and pipe fittings are manufactured to deliver outstanding mechanical performance, corrosion resistance, and long operational life.
Prime Steel Corporation manufactures products using premium-quality raw materials including Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel, Super Duplex Steel, Low Temperature Carbon Steel, Nickel Alloys, Inconel, Monel, Hastelloy, Titanium, and Copper Nickel. Every product is manufactured under strict quality control procedures and inspected according to international standards before shipment, ensuring reliable performance even under severe operating conditions.
We manufacture and export a complete range of ASME & ANSI B16.5 Flanges designed for industrial piping systems operating under low, medium, and high-pressure conditions. Our flanges are precision machined to provide excellent sealing capability, dimensional accuracy, and structural integrity.
Our flange range includes:
These flanges are available in multiple pressure classes, facing types, and schedules, our flanges are widely used in refinery piping systems, offshore platforms, chemical processing facilities, LNG terminals, power plants, and industrial manufacturing units throughout the United States. Carbon Steel flanges provide exceptional strength for pressure applications, while Stainless Steel and Duplex Steel flanges offer superior corrosion resistance for aggressive process environments.
Prime Steel Corporation manufactures a comprehensive range of ASME B16.9 Buttweld Pipe Fittings that ensure smooth flow characteristics and reliable pipe connections across industrial piping systems. Manufactured using advanced production techniques, our fittings provide excellent dimensional accuracy and durability.
Our buttweld fitting range includes:
These fittings are extensively used across the United States in oil & gas processing plants, petrochemical complexes, LNG terminals, pharmaceutical facilities, food processing industries, pulp & paper plants, and water treatment projects.
We also manufacture ASME B16.11 Forged Pipe Fittings for high-pressure piping systems requiring socket weld or threaded connections. Every forged fitting is produced with precision machining and tested to ensure leak-free performance and excellent mechanical strength.
Our forged fitting range includes:
These products are ideal for steam systems, hydraulic systems, instrumentation piping, chemical plants, and high-pressure process applications.
Prime Steel Corporation manufactures flanges and pipe fittings in a broad selection of material grades to satisfy the requirements of various industrial applications.
Our available materials include:
This extensive product portfolio enables us to serve industries requiring excellent corrosion resistance, high mechanical strength, and dependable long-term performance.
Our products are widely supplied for projects across numerous industrial sectors, including:
Our piping products are designed to meet the operational requirements of these industries while complying with international manufacturing standards.
Prime Steel Corporation is committed to delivering reliable industrial piping products supported by engineering expertise and strict quality assurance. Our manufacturing processes, experienced workforce, and global logistics capabilities enable us to supply customers in the United States with products that meet project specifications and delivery schedules.
Our strengths include:
Prime Steel Corporation is a dependable ASME & ANSI B16.5 Flanges & Pipe Fittings Manufacturer & Supplier in the United States, offering a complete range of ASME B16.5 Flanges, ASME B16.9 Buttweld Pipe Fittings, and ASME B16.11 Forged Pipe Fittings manufactured to international standards. Whether your project requires Carbon Steel, Stainless Steel, Duplex Steel, Alloy Steel, or specialty alloy products, we provide reliable piping solutions backed by strict quality control, competitive pricing, and efficient worldwide delivery. Our commitment to excellence makes us a preferred partner for industrial piping requirements across the United States.
The ANSI/ASME B16.5 standard serves as a comprehensive guide for the dimensions and tolerances of pipe flanges, covering a size range from ½" to 24" Nominal Pipe Size (NPS).
ANSI/ASME B16.36 standard stands as a specialized guide, addressing the dimensions and tolerances for a distinct category of flanges known as orifice flanges. Comparable to the widely used ANSI B16.5 standard, B16.36 distinguishes itself by placing a particular emphasis on orifice pressure differential connections.
The ANSI/ASME B16.47 standard is specifically designed to address the dimensions and tolerances of large-diameter pipe flanges, catering to sizes ranging from 26 to 60 inches Nominal Pipe Size (NPS). This standard is instrumental in ensuring the precise specifications for flanges intended for heavy-duty applications where larger diameters are required.
The ASME B16.47 Series B standard emerges as a cornerstone in the realm of large-diameter pipe flanges, offering meticulous guidance on dimensions and tolerances for sizes spanning from 26 to 60 inches in Nominal Pipe Size (NPS). Tailored to meet the demands of robust industrial applications, this standard stands out for its comprehensive coverage of pressure ratings, including Class 75, 150, 300, 400, 600, and 900 lbs.
Check ANSI/ASME B16.5, B 16.47 Series A & B, B16.48 Flange Dimensions Download
