In a fast-evolving industry, Prime Steel Industries remains adaptive, ensuring that its products and services align with the dynamic demands of the market.
Godown Address: No.6, Ground Floor, 32, Parekh House,
7th Khetwadi, Mumbai – 400004, Maharashtra, India.
Prime Steel Corporation is a leading ASME & ANSI B16.5 Flanges & Pipe Fittings Manufacturer & Supplier in India, offering an extensive range of industrial piping products engineered for demanding applications across the oil & gas, petrochemical, power generation, fertilizer, pharmaceutical, food processing, water treatment, infrastructure, and heavy engineering sectors. As one of India's trusted manufacturers and exporters, we are committed to delivering products that combine precision engineering, superior material quality, and international manufacturing standards.
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Top trusted flanges and pipe fittings manufacturer in Mumbai. Headquartered in Opera House, supplying certified pipelines across Maharashtra.
Reliable flanges and pipe fittings supplier in Vadodara. Delivering high-pressure piping components to chemical and fertilizer complexes in Gujarat.
Leading flanges and pipe fittings supplier in Chennai. Catering to Tamil Nadu's heavy engineering, automotive manufacturing, and water processing industries.
Top trusted flanges and pipe fittings supplier in Kolkata. Supplying certified piping solutions for steel mills, infrastructure, and mining sectors.
Premium flanges and pipe fittings supplier in Jamnagar. Delivering custom piping materials to the world's largest refining and petrochemical hubs.
Trusted flanges and pipe fittings supplier in Visakhapatnam. Providing robust steel flanges and fittings for shipbuilding, marine, and offshore terminals.
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 leading ASME & ANSI B16.5 Flanges & Pipe Fittings Manufacturer & Supplier in India, offering an extensive range of industrial piping products engineered for demanding applications across the oil & gas, petrochemical, power generation, fertilizer, pharmaceutical, food processing, water treatment, infrastructure, and heavy engineering sectors. As one of India's trusted manufacturers and exporters, we are committed to delivering products that combine precision engineering, superior material quality, and international manufacturing standards.
India is one of the fastest-growing manufacturing and industrial economies, with large-scale investments in refineries, petrochemical complexes, power plants, LNG terminals, renewable energy projects, and infrastructure development. These industries require durable piping components capable of operating under extreme pressure, temperature, and corrosive environments. Prime Steel Corporation manufactures premium-quality flanges and pipe fittings that meet these requirements while complying with globally recognized standards.
Our manufacturing facility produces products in Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel, Super Duplex Steel, Low Temperature Carbon Steel, Nickel Alloys, Monel, Inconel, Hastelloy, Titanium, Copper Nickel, and various special alloys. Every product is manufactured using advanced machinery and undergoes comprehensive quality inspections to ensure dimensional accuracy, mechanical strength, and long service life.
Prime Steel Corporation manufactures and supplies a comprehensive range of ASME & ANSI B16.5 Flanges suitable for industrial piping systems across India and international markets. Designed for secure, leak-proof connections, our flanges are available in various pressure ratings, sizes, facing types, and material grades to satisfy diverse industrial requirements.
Our flange range includes:
Our Carbon Steel flanges offer exceptional strength and toughness for high-pressure applications, while Stainless Steel, Duplex Steel, and Super Duplex Steel flanges provide superior corrosion resistance in chemical processing, offshore, and marine environments. These products are widely used in refineries, LNG terminals, process plants, and EPC projects throughout India.
We manufacture a complete range of ASME B16.9 Buttweld Pipe Fittings designed to provide smooth flow characteristics, reliable connections, and long-lasting performance in industrial piping systems. Every fitting is produced from premium-quality raw materials and inspected to ensure compliance with international specifications.
Our buttweld fitting range includes:
These fittings are extensively used in oil & gas pipelines, petrochemical plants, thermal and nuclear power stations, pharmaceutical manufacturing, chemical processing, sugar plants, cement industries, and water treatment projects across India.
Prime Steel Corporation also manufactures premium-quality ASME B16.11 Forged Pipe Fittings for high-pressure and high-temperature applications requiring socket weld and threaded connections. Manufactured with precision machining and strict quality control, these fittings provide outstanding mechanical performance and leak-free operation.
Our forged fitting range includes:
These forged fittings are widely used in steam lines, hydraulic systems, instrumentation piping, pressure vessels, and industrial processing plants throughout India.
Prime Steel Corporation manufactures flanges and pipe fittings in a broad range of material grades to meet the requirements of various industrial sectors.
Available materials include:
Our wide selection of materials enables customers to choose products that deliver optimum performance under corrosive, high-temperature, and high-pressure operating conditions.
Our products are widely supplied to industries across Mumbai, Delhi, Chennai, Hyderabad, Bengaluru, Kolkata, Ahmedabad, Pune, Vadodara, Jamnagar, Visakhapatnam, and other industrial regions.
Major industries include:
Our products are designed to provide dependable performance in demanding industrial applications while meeting stringent quality and safety requirements.
Prime Steel Corporation combines advanced manufacturing technology, skilled engineering, and strict quality assurance to deliver industrial piping products trusted by customers worldwide.
Our strengths include:
Prime Steel Corporation is a trusted ASME & ANSI B16.5 Flanges & Pipe Fittings Manufacturer & Supplier in India, delivering premium-quality ASME B16.5 Flanges, ASME B16.9 Buttweld Pipe Fittings, and ASME B16.11 Forged Pipe Fittings to customers across India and global markets. Manufactured in Carbon Steel, Stainless Steel, Duplex Steel, Alloy Steel, and specialty alloys, our products are engineered to meet international standards and the rigorous demands of modern industrial applications. With our focus on quality, innovation, competitive pricing, and timely delivery, Prime Steel Corporation continues to be a preferred partner for industrial piping solutions.
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
