Features of A234 SCH40

• Standard wall thickness (medium duty)

• Good for moderate pressure service

• Lower weight → easier installation

• More economical for general piping

• Widely used in water, air, low-medium pressure lines

✅ Best for: general industrial piping

 Features of A234 SCH80

• Extra-thick wall (heavy duty)

• Higher pressure and temperature capability

• Better mechanical strength

• Longer service life in severe conditions

• Higher material cost and weight

✅ Best for:

• High-pressure lines

• Steam service

• Critical process piping

• Abrasive or high-temperature service
  
  

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