A105 Flanges

ASTM A105 Flanges: Material, Applications and Inspection

ASTM A105 is one of the most commonly specified carbon steel forging materials for industrial flanges and piping components.

It is widely used in pressure piping applications where good strength and machinability are required.

What Is ASTM A105?

ASTM A105 covers carbon steel forgings for piping applications.

It is commonly used for:

• Flanges
• Forged fittings
• Valves
• Pressure-containing components

A105 vs A105N

A105N generally refers to A105 material supplied in a normalized condition.

When a project specification requires A105N, the supplier should clearly state the heat treatment condition and provide supporting documentation.

Common A105 Flange Types

A105 can be used for:

• Weld neck flanges
• Slip-on flanges
• Blind flanges
• Threaded flanges
• Socket weld flanges
• Lap joint flanges

Common Standards

A105 flanges may be manufactured according to:

• ASME B16.5
• ASME B16.47
• ASME B16.48
• Customer drawings

Quality Documentation

For industrial projects, buyers may request:

• EN 10204 3.1 MTC
• Chemical analysis
• Mechanical properties
• Heat treatment records
• Dimensional inspection
• PMI where applicable
• Hydrostatic testing where applicable
• Third-party inspection

Applications

A105 flanges are widely used in:

• Oil and gas
• Petrochemical
• Power generation
• Industrial processing
• Water and utility systems

Need ASTM A105 Flanges?

 

We manufacture carbon steel flanges according to project requirements and can provide material certificates and inspection documentation.