Ramani Metals

Stainless Steel Butt Weld Fittings Overview

1. Description:
Stainless Steel Butt Weld Fittings are pipe components designed to be welded directly to the ends of pipes, creating a continuous, leak-proof connection. They are widely used in high-pressure, high-temperature, and corrosive environments.

2. Common Types of SS Butt Weld Fittings:

• Elbow (45° & 90°): Changes the direction of flow.

• Tee: Combines or splits fluid flow.

• Reducer (Concentric & Eccentric): Connects pipes of different diameters.

• Cap: Closes the end of a pipe.

• Stub End: Used with lap joint flanges.

• Cross: Connects four pipelines at a junction.

3. Grades of Stainless Steel:

• SS 304 / 304L

• SS 316 / 316L

• SS 310 / 321

• SS 347 / 904L

• Duplex & Super Duplex Stainless Steel

4. Standards & Specifications:

• ASTM A403 / ASME SA403 (for austenitic stainless steel)

• ASME B16.9 (Dimensions)

• ASME B16.28 (Short Radius Elbows)

• ASTM A815 (Duplex & Super Duplex)

5. Manufacturing Types:

• Seamless Butt Weld Fittings

• Fabricated Butt Weld Fittings

• Hot-Finished or Cold-Formed

6. Size Range:

• 1/2” NB to 48” NB (depending on fitting type and manufacturer)

7. Surface Finish:

• Polished / Mirror Finish

• Pickled & Passivated

• Sand Blasted / Matte Finish

8. Applications:

• Oil & Gas Pipelines

• Chemical & Petrochemical Plants

• Power Plants

• Food & Beverage Industry

• Pharmaceutical Industry

• Marine & Offshore Systems

9. Key Features:

• High pressure & temperature resistance

• Superior corrosion resistance

• Leak-proof & strong welded joints

• Compatible with various stainless steel grades

• Long service life & minimal maintenance