MSM - SINCE 1982

Our 350,000 square foot facility located in Youngsville, Louisiana boasts over 80 machining centers, an ASME coded weld shop, an in house quality department, and one of the largest inventories of API flanges in the US.

PRODUCTS

© 2017  Machine Specialty & Manufacturing, Inc.

API Resources

API 6A defines a welding neck flange as a flange with a neck on the opposite side of the sealing surface, prepared with weld bevel to connect to a corresponding pipe or transition piece.

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

  • BB

  • CC

  • DD

  • EE

  • FF

  • HH

General Service

General Service

General Service

Sour Service

Sour Service

Sour Service

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

  • L

  • N

  • P

  • S

  • T

  • U

  • V

-75°F (-60°C)

-50°F (-46°C)

-50°F (-46°C)

-20°F (-29°C)

0°F (-18°C)

0°F (-18°C)

0°F (-18°C)

0°F (-18°C)

PSL 1
PSL 2
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

  • 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