Titanium Reducer Gr2 Gr7 Gr12

Introduction

Titanium reducers are available in both concentric and eccentric types and are widely used in industrial piping systems to connect pipes of different diameters.

We manufacture titanium eccentric and concentric reducers from NPS 1/4" up to 48", covering a wide range of industrial applications.

Material Selection

• Gr2 – Excellent corrosion resistance, especially suitable for chlor-alkali plants.

• Gr7 – Superior performance in acidic environments, particularly ideal for acid regeneration systems in large steel plants.

• Gr12 – Contains molybdenum and nickel, offering improved corrosion resistance in specific media compared to Gr2, while being more cost-effective than Gr7.

Reducers in Gr2 / Gr7 / Gr12 are manufactured in accordance with:

• ASTM International – ASTM B363

• ASME – ASME SB363

• ASME B16.9 (Dimensional Standard)

Reducers ≤ 4" (inclusive) are formed from seamless pipes.
Reducers above 4" are fabricated by welding Gr2 titanium plates, with all weld seams 100% radiographically inspected (X-ray test).

Specification

Product Type

• Concentric Reducer

• Eccentric Reducer

• Reducing Swage (small size range)

Size Range

Seamless Reducers:

• Φ18 – Φ114.3 mm

• Wall thickness: 2.0 – 9.0 mm

Welded Reducers:

• Φ139.7 – Φ1220 mm

• Wall thickness: 2.0 – 30 mm

Condition

• (M) – Annealed condition

Grades

• Gr2

• Gr7

• Gr12

Standards

• ASME B16.9-2007

• MSS SP-43

• ASTM B363

• GB/T12459-2005

• GB/T13401-2005

• HG/T3651-1999

• GB/T27684-2011

Manufacturing Techniques

• Seamless extrusion

• Butt welding

• Spinning

• Forging

• Machining from bar stock

Surface Finish

• Sand blasting

• Polishing

• Pickling

Quality Control

• 100% X-ray (RT) inspection

• Dye Penetrant Test (PT)

Customization

Special sizes and non-standard dimensions can be produced according to customer requirements.

Application

Titanium reducers conforming to ASTM B363 are used to:

• Change pipe size to meet hydraulic flow requirements

• Adapt to existing pipelines of different diameters

• Optimize flow distribution within piping systems

Concentric vs. Eccentric Reducers

Concentric Reducer

• Used in vertical piping systems

• Maintains symmetrical flow

Eccentric Reducer

• Maintains the same top or bottom pipe level

• Commonly used at pump connections

• Helps prevent cavitation by avoiding air accumulation

Reducers are typically supplied in the standard bell-shaped configuration used for other metallic piping materials. This shape is achieved by spinning, forging, or machining.

In some cases, eccentric or concentric reducers may be supplied as formed cones. Care must be taken to ensure that conical designs meet system pressure and flow requirements.

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