Transition Nozzles – Stainless Steel/Alloys

OSI manufactures precision hot-forged stainless steel transition nozzles designed to provide smooth, secure connections between varying pipe sizes and system configurations. Engineered for strength, durability, and dependable performance, our transition nozzles promote efficient flow while offering excellent corrosion resistance and a precise fit in demanding industrial environments.

Proudly manufactured in the USA using high-quality, tested stainless steel, OSI transition nozzles are produced to meet customer specifications and tight tolerances. Designed for air-cooled heat exchanger headers and other industrial piping applications, our products serve industries including power generation, data centers, oil and gas, and other demanding environments where corrosion resistance, temperature performance, and long-term reliability are essential.

Corrosion resistance is a critical consideration in applications exposed to aggressive process conditions. OSI recognizes the importance of material selection, corrosion allowance requirements, and verification of material performance. Where specified, materials may be evaluated in accordance with ASTM G28 Method A, an established testing procedure used to assess susceptibility to intergranular corrosion in certain nickel-rich, chromium-bearing alloys. These considerations help support material integrity and long-term reliability in demanding service environments.

With a commitment to precision craftsmanship, consistent quality, competitive lead times, and dependable delivery, OSI stainless steel transition nozzles are built to perform and delivered when you need them.

Available Sizes & Wall Thickness

  • 6"–12": Schedule 80 through XXH (Double Extra Heavy)

  • 14": Schedule 80 & 120

  • 16": Schedule 80 only

Material: Stainless Steel, Duplex 2205, and Super Duplex 2507

Industry Standards: Manufactured to applicable ASME, ASTM, MSS, Canadian, and PED requirements, as specified by the customer.

Shipping: Nationwide and international shipping available to meet our customers’ needs.

Need a custom size, height, or special configuration? Contact OSI to discuss your specific requirements and available manufacturing options.

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Transition Nozzles - WPB

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Extruded Pipe Header