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API Resources

API Resources

API Pressure Classes

API 6A required equipment to be designed to one of the following maximum rated working pressures.

  • 2,000 psi
  • 3,000 psi
  • 5,000 psi
  • 10,000 psi
  • 15,000 psi
  • 20,000 psi
  • 2M psi
  • 3M psi
  • 5M psi
  • 10M psi
  • 15M psi
  • 20M psi
  • 13.8 MPa
  • 20.7 MPa
  • 34.5 MPa
  • 69.0 MPa
  • 103.5 MPa
  • 138.0 MPa

API 6A Material Class

Material Class

  • AA – General Service
  • BB – General Service
  • CC – General Service
  • DD – Sour Service
  • EE – Sour Service
  • FF – Sour Service
  • HH – Sour Service

Body – Bonnet – Outlets

  • Carbon or Low Alloy
  • Carbon or Low Alloy
  • Stainless
  • Carbon or Low Alloy
  • Carbon or Low Alloy
  • Stainless
  • CRA

Pressure Controlling Parts, Stems, Hangers

  • Carbon or Low Alloy
  • Stainless
  • Stainless
  • Carbon or Low Alloy
  • Stainless
  • Stainless
  • CRA

API 6A Temperature Class

Charpy Impact Requirements

Classification

  • K – -75°F (-60°C)
  • L – -50°F (-46°C)
  • N – -50°F (-46°C)
  • P – -20°F (-29°C)
  • S – 0°F (-18°C)
  • T – 0°F (-18°C)
  • U – 0°F (-18°C)
  • V – 0°F (-18°C)

PSL 1

  • 15 ft-lbf (20) J
  • 15 ft-lbf (20) J
  • 15 ft-lbf (20) J

PSL 2

  • 15 ft-lbf (20) J
  • 15 ft-lbf (20) J
  • 15 ft-lbf (20) J
  • 15 ft-lbf (20) J

PSL 3

  • 15 ft-lbf (20) J
  • 15 ft-lbf (20) J
  • 15 ft-lbf (20) J
  • 15 ft-lbf (20) J
  • 15 ft-lbf (20) J
  • 15 ft-lbf (20) J
  • 15 ft-lbf (20) J
  • 15 ft-lbf (20) J