Calico Metal Alloys LLP is a renowned supplier of AL6XN Flanges in India. With a commitment to quality and reliability, Calico Metal Alloys LLP has earned a solid reputation for providing top-notch industrial solutions to various sectors across the nation.

We pride ourselves on offering AL6XN Flanges that meet the highest industry standards. These flanges are crafted with precision and expertise, ensuring exceptional durability and performance in demanding environments. Customers can rely on us for superior quality products that fulfill their specific requirements with efficiency.

As a trusted supplier of AL6XN Flanges in India, we cater to diverse industries including chemical processing, marine, pharmaceuticals, and more. Our extensive experience and expertise enable us to provide customized solutions tailored to the unique needs of each client. With a focus on innovation and customer satisfaction, we continue to set benchmarks in the industry.

AL6X9 Flanges

Manufacturing Process Of AL6X9 Flanges

Raw Material

The system controls inspect the raw material quality at the first stage in accordance with the test certificate as well as dimensions and appearance.

Material Cutting

This method of making flanges involves cutting stripes from the center plate and rolling them into a circle.


Compared to cast flanges, forged flanges typically contain less carbon and are less likely to corrode. Temperature control, weight measurement, and material grade checking are used in forgings.

Heat Treatment

The total forging cooling speed is the slowest throughout this heat treatment procedure; the standardizing and decreasing cooling speeds are faster.

Final Inspection

Measure and check the flange's dimensions and size using this procedure.

What Are AL6XN Flanges?

AL6XN flanges are constructed using AL6XN alloy, a super-austenitic stainless steel known for its superior corrosion resistance in harsh environments like seawater and chemical processing plants. AL6XN flanges have long been utilized by industries needing reliable performance such as marine, offshore, chemical processing plants and pharmaceutical firms requiring high performance with durability requiring superior pitting resistance, crevice corrosion and chloride stress corrosion cracking resistance - such as marine industries offshore chemical processes or pharmaceutical sectors which use AL6XN.

AL6XN Flange Specifications and Sizes

AL6XN stainless steel is known for its superior corrosion resistance in challenging environments, so AL6XN-made flanges come in different specifications to meet various industrial demands. Common specifications include those set forth by ANSI, ASME and ASTM standards with sizes that range from 1/2" to 24" (DN 15 to 600), offering pressure ratings of up to 2500 pounds per inch of pressure differential. AL6XN flanges have become ubiquitous across multiple industries such as chemical processing, marine, pulp & paper and pharmaceuticals - each demanding corrosion resistance and reliability for optimal operations. Their increased resistance properties make AL6XNs ideal in harsh acidic or chloride environments such as acid rain or chlorides-laden seawater environments.

Standard ASTM A182 / ASME SA182
Dimensions ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092
Flange Size Chart 1/2" (15 NB) to 48" (1200NB), DN10~DN5000
Pressure Rating Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
Pressure Calculation in DIN 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64
JIS 16 K, 5K, 10 K, 20 K, 30 K, 40 K, 63 K
Flange Connection / Flange Face Type Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, Groove, Flange Pipe.
Origin West Europe / Japan / Indian / USA / Korean
Types of Flanges Threaded / Screwed / Forged / Plate
Coating Yellow Transparent, Zinc Plated, Anti-rust Paint, Oil Black Paint, Cold and Hot Dip Galvanized
Production technique Used Heat treated, Forged and Machined
Equipment Press machine, Bending machine, Pushing Machine, Sand-blasting machine, electric bevelling machine etc.
Test Certificates EN 10204/3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report, etc

Types Of AL6X9 Flanges


AL6X9 Weld Neck Flange


AL6X9 Blind Flange


AL6X9 Slip on Flange


AL6X9 Socket weld Flange


AL6X9 Spectacle Blind Flange


AL6X9 Threaded Flange


Other Types Of AL6X9 Flanges

AL6X9 Flanges AL6X9 Lap Joint Flange
AL6X9 Long Weld Neck Flange AL6X9 Industrial Flanges
AL6X9 Forged Flanges AL6X9 RTJ Flange
AL6X9 Stainless Steel Plate Flange AL6X9 Square Flange
F51 AL6X9 Flanges AL6X9 F51 SORF Flange
AL6X9 WNRF Flange AL6X9 SWRF Flanges
ASME SA182 AL6X9 Flanges ASTM A182 AL6X9 Flange
AL6X9 Flat Face Flange AL6X9 BS 4504 Flanges
AL6X9 Orifice Flange AL6X9 Groove & Tongue Flanges
ANSI B16.5 AL6X9 Flanges AL6X9 Loose Flange

AL6X9 Flanges Equivalent Grade

Material number

Chemical Composition of AL6XN Flanges

AL6XN flanges are typically constructed using AL6XN alloy, an austenitic stainless steel with superior corrosion resistance and chemical compositions consisting of high levels of chromium, nickel, molybdenum, and nitrogen (for instance 24% chromium 22% nickel 6.3% molybdenum and 0.22 nitrogen), making this suitable for demanding industrial environments involving aggressive environments like pitting corrosion crevice corrosion chloride stress corrosion cracking etc.

Grade Ni Cr Mo Cu N C Mn Si P S
AL6X9 23.5-25.5 20.00-22.00 6.00-7.00 0.75 Max 0.18-0.25 0.03 Max 2.0 Max 1.00 Max .040 Max 0.03 Max

Mechanical Properties of AL6XN Flanges

AL6XN Flanges AL6XN stainless steel is an austenitic high strength stainless steel known for its outstanding corrosion resistance in aggressive environments, boasting mechanical properties including an approximate tensile strength of 100ksi (690 MPa) and yield strength of approximately 50ksi (345 MPa). AL6XN also exhibits exceptional toughness making it suitable for industries including chemical processing, marine applications and pulp & paper, plus it exhibits greater chloride stress corrosion cracking resistance than typical stainless steels compared to conventional stainless steels.

Hardness HB 30 ≤ HB 0.2% yield strength Rp≥ N / mm² Tensile strength R m N / mm² Elongation A 5 ≥% Young’s modulus kN / mm²
250 300 650-850 40/35 195

Advantages of AL6XN Flanges

Corrosion Resistance: AL6XN boasts exceptional corrosion resistance in hostile environments like seawater, acids, chlorides and sulfides - perfect for applications where traditional stainless steels might fail. This corrosion-resistance makes AL6XN suitable for a wide variety of uses where conventional stainless steel might corrode away quickly.

High Strength: AL6XN has higher strengths compared to conventional austenitic stainless steels like 316L or 317L, providing thinner walls and lighter weight components without compromising performance, making it the ideal material for high pressure flange applications.

Weldability: AL6XN can easily be welded using common welding techniques, making fabrication and installation processes much faster and simpler. This feature adds another dimension of versatility while making integration into various systems much simpler.

Durability: AL6XN's superior durability can extend flange service lives while decreasing maintenance costs and downtime, offering tremendous cost-cutting potential over time. This material stands up well against fatigue cracking as well as stress corrosion cracking; thus increasing their service lives over time while simultaneously decreasing maintenance expenses and downtime costs.

Hygienic Properties: AL6XN is widely utilized by industries where cleanliness and hygiene are crucial, such as pharmaceutical, food processing and biotechnology. With its smooth surface finish and corrosion-resistance characteristics it makes AL6XN suitable for applications where cleanliness is of primary concern.

Cost-Effectiveness: Even though AL6XN is considered an expensive material, its superior performance and longevity can translate to significant long-term cost savings over the course of its lifespan. Due to its resistance against corrosion and wear, frequent replacements or maintenance require far fewer visits for repair thereby decreasing total operating expenses significantly.

Application of AL6XN Flanges

AL6XN is an austenitic stainless steel alloy composed of high levels of chromium, nickel, molybdenum and nitrogen that offers exceptional corrosion resistance as well as strength and durability in various industries. AL6XN flanges made with this alloy have many applications across various fields due to their corrosion resistant qualities as well as being very strong; some common ones being:

Chemical Processing: AL6XN flanges are widely utilized within chemical processing industries where resistance to aggressive acids such as sulfuric, hydrochloric or phosphoric acids is crucial. They're suitable for applications using acids like sulfuric, hydrochloric or phosphoric.

Marine and Saltwater Environments: AL6XN's high corrosion resistance makes it perfect for use in marine environments where exposure to saltwater may lead to material corrosion in other materials, including offshore platforms, shipbuilding projects and desalination plants. Flanges manufactured with this material have become standard fixtures at desalination plants worldwide.

Oil and Gas Industry: AL6XN flanges are widely utilized for oil and gas exploration, production and refining processes where they may come into contact with highly acidic fluids as well as high temperature environments and pressure situations. They must withstand these environments safely to remain effective.

Food and Beverage Processing: AL6XN flanges can be found throughout food and beverage processing industries where cleanliness and corrosion resistance are critical, including applications involving acidic foods, dairy products and beverages. They offer outstanding corrosion protection allowing businesses to stay ahead of industry needs for processing acidic items safely.

Pharmaceutical Sector: AL6XN flanges have long been used in pharmaceutical manufacturing processes where resistance to corrosion and contamination are key elements for maintaining product purity.

Heat Exchangers and Condensers: AL6XN flanges can be found in heat exchangers and condensers used by industries like power generation, HVAC/R systems and refrigeration where corrosion resistance and thermal conductivity are of utmost importance.

AL6XN flanges are typically chosen for applications where superior corrosion resistance, strength, and reliability in harsh operating environments is desired.

Electrical Industry


Automotive Industry


Construction Industry


Defence Industry


Pharmaceutical Industry


Petroleum Industry


Petrochemical Industry


Milk & Dairy Industry

Milk & Dairy

Export & Supply Destinations Of AL6X9 Flanges

Liechtenstein, Spain, Belarus, Serbia, France, Finland, Bulgaria, Sweden, Latvia, Moldova, Monaco, Azerbaijan, Czechia/Czech Republic, Luxembourg, Belgium, Italy, Austria, Slovakia, Hungary, Greece, Romania, Switzerland, Germany, Turkey, Portugal, Russia, Ireland, Denmark, Lithuania, United Kingdom, Cyprus, Norway, Estonia, Poland, Ukraine, Malta, Croatia, Netherlands.

Sri Lanka, Kuwait, Indonesia, Japan, Taiwan, Israel, Philippines, Myanmar, Macau, Bangladesh, Singapore, Lebanon, Saudi Arabia, Afghanistan, Hong Kong, Iraq, Armenia, Mongolia, Egypt, Qatar, Bhutan, Thailand, Turkey, Bahrain, Maldives, British, North Korea, Nepal, United Arab Emirates, Iran, Kyrgyzstan, South Korea, Malaysia, Azerbaijan, Oman, Vietnam, India, Jordan, China, Russia.

Angola, Liberia, Mauritius, Libya, Mauritania, Eswatini, Mozambique, Namibia, Senegal, Niger, Zambia, Zimbabwe, Tunisia, Central African Republic, Gambia, Kenya, Uganda, Nigeria, Burkina Faso, Morocco, Ethiopia, South Africa, Egypt, Tanzania, Algeria, Madagascar, Rwanda, Botswana, Burundi, Seychelles, Cameroon.

El Salvador, Jamaica, Antigua and Barbuda, Belize, Dominican Republic, Canada, Panama, Costa Rica, Barbados, Bahamas, Haiti, United States of America, Grenada, Honduras, Cuba, Guatemala, Saint Lucia, Saint Vincent and the Grenadines, Nicaragua, Dominica, Trinidad and Tobago, Mexico.

Paraguay, Colombia, Guyana, Suriname, Ecuador, Bolivia, Venezuela, Brazil, Peru, Argentina, Chile, Uruguay.