Details about ASTM A106 Gr. A pipeline

Chemical Composition and Mechanical Properties of A106 Grade A Pipes

A106 Grade A pipes have specific chemical and mechanical properties:Chemical Composition:

Element Maximum Percentage
Carbon 0.25%
Manganese 0.27-0.93%
Phosphorus 0.035%
Sulfur 0.035%
Silicon 0.10% min

Mechanical Properties:

Property Value
Tensile Strength (min) 48,000 psi (330 MPa)
Yield Strength (min) 30,000 psi (205 MPa)
Elongation (min) 35%

Applications and Industries Using A106 Grade A Pipelines

A106 Grade A pipes are used in various industries:

  1. Oil and gas transmission pipelines
  2. Petrochemical plants
  3. Power generation facilities
  4. Low-pressure steam lines
  5. Boiler systems
  6. Chemical processing plants
  7. HVAC systems
  8. Plumbing systems for water and gas transportation
  9. Structural applications in construction

Manufacturing Process and Available Forms

A106 Grade A pipes are manufactured as seamless pipes through hot rolling or cold drawing processes. They are available in:

  • Sizes: NPS 1/8 to NPS 48 (DN 6 to DN 1200)
  • Wall Thickness: As per ANSI B36.10
  • Lengths: Single random (5-7 meters) and double random (9-13 meters)

Comparison of A106 Grade A with Other Grades

Property A106 Grade A A106 Grade B A106 Grade C
Tensile Strength (min) 48,000 psi 60,000 psi 70,000 psi
Yield Strength (min) 30,000 psi 35,000 psi 40,000 psi
Carbon Content (max) 0.25% 0.30% 0.35%

A106 Grade A is suitable for low-pressure applications and does not require heat treatment after the final cold drawing process.

Quality Standards and Testing for A106 Grade A Pipes

A106 Grade A pipes adhere to ASTM A106 / ASME SA106 standards and undergo various tests:

  1. Tensile strength testing
  2. Chemical composition analysis
  3. Hydrostatic testing
  4. Flattening and bending tests

At HL Steel Company, we ensure that all our A106 Grade A pipelines meet or exceed these quality standards, providing our customers with reliable and high-performance products for their diverse industrial needs.

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