4 Inch ASTM A105 Carbon Steel Weld Neck Flange, CL 150, FF Face, STD Thickness, Pipe Flange

Product Overview

This 4-inch weld neck pipe flange is manufactured from high-quality carbon steel conforming to ASTM A105 standards, designed for Class 150 pressure rating with a flat face (FF) and standard wall thickness (STD). It is widely used in piping systems for reliable, leak-proof connections in industrial fluid transfer applications. Each package includes 2 weld neck flanges with matching stub ends for convenient installation.

Key Features

• Premium ASTM A105 carbon steel construction for excellent strength and durability
• Class 150 pressure rating suitable for medium-pressure industrial piping systems
• Flat face (FF) design ensures even load distribution and reliable sealing
• Standard (STD) wall thickness matches standard pipe schedules for easy compatibility
• Precision machined weld neck provides smooth transition and reduces stress concentration
• Comes in a set of 2 flanges with stub ends for complete connection solution
• Corrosion-resistant carbon steel material suitable for various industrial environments

Specifications

Applications

These carbon steel weld neck flanges are suitable for a wide range of industrial piping applications including:

• Petroleum and chemical processing systems
• Water treatment and wastewater management facilities
• Power generation and HVAC systems
• Industrial fluid transfer pipelines
• Oil and gas midstream and downstream operations
• General industrial plumbing and piping installations

Package Contents

• 2 x 4" ASTM A105 Carbon Steel Weld Neck Flanges (CL 150, FF, STD)
• 2 x Matching Flange Stub Ends