At Steellite Metal & Tubes, we focus on making precision Expander Flanges that keep high-performance piping systems running smoothly. These flanges connect pipes of different sizes without any need for reducers, so they’re a favorite in oil, gas, petrochemical, and power plants across India, the USA, Germany, and the Middle East. After years in the business, we know how to meet tough international standards like ANSI, ASME, ASTM, DIN, and BS. Our modern facilities and technical expertise let us deliver Expander Flanges that handle pressure and flow changes without a hitch, no matter the temperature or system demands.

Expander Flanges boost the bore size of a pipeline right at the flange connection. Instead of using traditional reducers, these flanges offer a compact way to make the transition, cutting down on welding and speeding up installation, all while keeping the structure solid. We make them in a range of materials—stainless steel, carbon steel, duplex, super duplex, and nickel alloys—so there’s something for every job. At Steellite Metal & Tubes, we stick to international material grades like ASTM A182 F304, F316, F321, F347, F51, and F53, so our flanges last and resist corrosion, even in extreme conditions. You’ll find our products all over India, Saudi Arabia, South Africa, and Australia—places where reliability matters most.

Expander Flanges, Expander Flanges Manufacturers, Expander Flanges Suppliers, Expander Flanges Stockists, Expander Flanges Exporters

When it comes to performance and precision, our team at Steellite Metal & Tubes knows what’s at stake. Expander Flanges save valuable space, cut down on welding, and keep flow consistent between pipes. That’s a big deal for systems with tight layouts or where a smooth flow transition is key. They also help minimize turbulence and pressure drops, which keeps everything running more efficiently. Every Expander Flange we produce meets ASME B16.5, MSS SP-44, and API 605 standards, so they fit right in at refineries, chemical plants, and offshore sites. Our drive for quality and value has earned us the trust of buyers worldwide who need dependable, cost-effective flanges.

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We manufacture and ship a wide variety of Expander Flanges to suit different industrial needs. You’ll find Weld Neck Expander Flanges for high-pressure lines, Slip-On types that are easy to align and install, and Socket Weld designs perfect for small-diameter pipes where strength and a compact fit matter. Each flange gets put through strict quality checks before it leaves our facility. Our flanges go out to Europe, Asia, and North America, where customers count on our consistency, high standards, and fast delivery.

Expander Flanges Specification
ASME B16.5 Expander Flange Size Chart 1/2" (15 NB) to 48" (1200NB) DN10~DN5000
Expander Flange Standards 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
Expander Flange Pressure Rating ANSI Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS Expander Flange
Expander Flange Pressure Calculation in DIN 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 Expander Flange
JIS 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K Expander Flange
UNI 6Bar 10Bar 16Bar 25Bar 40Bar Expander Flange
EN 6Bar 10Bar 16Bar 25Bar 40Bar Expander Flange
Coating Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized Expander Flange
Most common types of Expander Flange Forged / Threaded / Screwed / Plate
Production technique
  • Forged, Heat treated and machined
Connect Type/ 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
Special design As per your drawing AS, ANSI, BS, DIN and JIS
15 NB (1/2") to 200 NB (8")
Equal and Reducing Configurations
Equipment Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc
Expander Flange Uses & application
  • Bitumen upgraders.
  • Heavy oil refineries.
  • Nuclear power (mostly seamless).
  • Petrochemicals and acids.
Application of Expander Flanges
Latest Price List of Expander Flanges

The Latest Price List of Expander Flanges by Steellite Metal & Tubes provides an up-to-date overview of high-quality products offered by trusted manufacturers, exporters, suppliers, and stockists. We ensure competitive pricing backed by certified quality, serving clients across various industries and global markets with timely delivery and technical support.

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