Call: +91-98 77 77 86 77

Email: info@unionsteel.co.in

Shop No. B-06, Mangalmurti Industrial Complex, Plot No. T/80, MIDC Bhosari
Pune, Maharashtra – 411026, India
+91-98 77 77 86 77
info@unionsteel.co.in
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Flanges

Stainless Steel, Duplex, Super Duplex, Copper, Brass & Specialty Alloy Flanges.

Union Steel Industries is a Flanges stockist and supplier in Pune, backed by the Navpad Metal Group’s 20+ years of industry heritage. Based in MIDC Bhosari, Pune, we supply Industrial Flanges for piping, process equipment, pressure systems, fabrication and engineering applications.

flanges

FLANGES STOCKIST & SUPPLIER IN PUNE, INDIA

Flange Types

Weld Neck | Slip-On | Blind | Socket Weld | Threaded | Lap Joint | Long Weld Neck | Ring Type Joint | Reducing | Custom Flanges

Flanges provide removable connections between pipes, valves, pumps, pressure vessels and other piping components.

Flange Requirements

Material | Grade | Flange Type | NPS/NB | Pressure Class | Standard | Facing | Dimensions | Quantity

Contact our technical sales team today for an instant commercial quote.
WhatsApp: +91 9877778677 | Email: sales@unionsteel.co.in

TYPES OF FLANGES

Weld Neck Flanges

Butt-welded Flanges used for higher-pressure and temperature applications.

Applications: Oil & Gas | Petrochemical | Chemical | Power | Pressure Vessels | Process Piping

Slip-On Flanges

Fitted over the pipe and welded in position for general industrial piping.

Applications: Water Treatment | Chemical Plants | Engineering | Fabrication

Blind Flanges

Solid Flanges used to close or isolate piping and equipment connections.

Applications: Pipeline Isolation | Pressure Testing | Maintenance | Pressure Vessels

Socket Weld Flanges

Used mainly with smaller-diameter piping and selected high-pressure applications.

Threaded Flanges

Internally threaded Flanges used where welding is not required.

Lap Joint Flanges

Used with Stub Ends where frequent dismantling or alignment is required.

STAINLESS STEEL FLANGES

Stainless Steel Flanges are widely used where corrosion resistance, durability and mechanical performance are required.

Common Grades

SS 304 | SS 304L | SS 316 | SS 316L | SS 321 | SS 347 | SS 310S | SS 904L | SS 410 | SS 420 | SS 430 | SS 17-4 PH

Applications

Chemical Processing | Pharmaceutical | Food Processing | Water Treatment | Oil & Gas | Petrochemical | Marine | Process Equipment

DUPLEX & SUPER DUPLEX FLANGES

Duplex

Duplex 2205 | UNS S31803 | UNS S32205

Applications: Oil & Gas | Chemical | Petrochemical | Marine | Desalination | Water Treatment

Super Duplex

Super Duplex 2507 | UNS S32750 | UNS S32760

Applications: Offshore | Oil & Gas | Marine | Desalination | Petrochemical | Chemical Processing

FLANGE STANDARDS

Flanges can be supplied according to applicable international and national standards.

FLANGE REQUIREMENTS & STANDARDS
Requirement Common Standards
Dimensional ASME B16.5
Material ASTM A182 / ASME SA182
Other EN

Availability depends on grade, type, size, class, standard, quantity and current stock position.

FLANGE TESTING, MTC & INSPECTION

Depending on project requirements, Flanges can be supplied with:

Chemical Analysis | Mechanical Testing | Hardness Testing | Dimensional Inspection | PMI | Heat Number | Material Traceability | NABL Laboratory Testing | Third-Party Inspection

TPI Agencies

TÜV | SGS | Bureau Veritas | DNV

FLANGE APPLICATIONS

Flanges are used across:

Oil & Gas | Petrochemical | Chemical Processing | Pharmaceutical | Power Generation | Marine | Shipbuilding | Water Treatment | Desalination | Food Processing | Automotive | Aerospace | Engineering | Fabrication | Construction

Typical Uses

Process Piping | Pipelines | Pressure Vessels | Heat Exchangers | Storage Tanks | Pumps | Valves | Reactors | Process Skids | Industrial Equipment

FLANGES IN PUNE & ACROSS INDIA

Located in MIDC Bhosari, Pune, Union Steel Industries supplies Flanges to major industrial markets across India. We serve customers across Pune and PCMC industrial areas, including MIDC Bhosari, Chakan, Talawade, Talegaon, Ranjangaon, Pirangut and Hadapsar.

Pune & PCMC

MIDC Bhosari | Chakan | Talawade | Talegaon | Ranjangaon | Pirangut | Hadapsar

Major Markets

Pune | Mumbai | Navi Mumbai | Thane | Nashik | Ahmedabad | Vadodara | Surat | Jamnagar | Rajkot | Vapi | Gujarat | Delhi NCR | Bengaluru | Hyderabad | Chennai

GLOBAL EXPORT SUPPLY

We support export requirements for Stainless Steel, Duplex, Super Duplex, Nickel Alloy, Aluminium, Copper, Brass and Specialty Alloy Flanges.

Export Markets

GCC | UAE | Saudi Arabia | Qatar | Kuwait | Oman | Bahrain | Middle East | Europe | UK | Germany | Italy | Netherlands | France | USA

Export orders can be supported with MTC, inspection documentation, traceability, export packaging and shipping coordination.

WHY UNION STEEL

WHERE QUALITY MEETS EXCELLENCE

When your project depends on the quality of its raw materials, you need more than a supplier. You need a dependable industrial metal partner.
Union Steel Industries combines industry experience, quality-focused sourcing and responsive customer service to deliver reliable metal solutions.

Backed by Navpad Metal Group’s decades of technical experience.

Strict quality assurance protocols at every supply stage.

Sourcing across stainless steel, nickel a loys, titanium, and non-ferrous metals.

Wooden crates, sea-worthy pallets, waterproof wrapping, and protective PVC film.

Frequently asked questions

We provide Weld Neck, Slip-On, Blind, Socket Weld, Threaded, Lap Joint, Long Weld Neck, Ring Type Joint, Reducing and Custom Flanges, subject to specification and availability.

We supply Stainless Steel, Aluminium, Duplex, Super Duplex, Copper, Brass, Monel, Inconel, Titanium, Hastelloy, Gunmetal and Phosphor Bronze Flanges.

Flanges can be supplied according to applicable ASME, ASTM, EN, DIN, JIS, BS and IS standards.

Common ASME classes include 150, 300, 400, 600, 900, 1500 and 2500. EN/DIN Flanges can be specified using applicable PN ratings.

Flanges can be supplied in commonly required 1/2" to 48" and larger sizes, depending on type, material, class and availability.

Yes. Depending on requirements, EN 10204 3.1/3.2, PMI, NABL testing and Third-Party Inspection can be supported.

Yes. Aluminium, Copper, Brass, Monel, Inconel, Titanium, Hastelloy, Gunmetal and Phosphor Bronze Flanges can be supplied according to grade, type, size, specification and availability.