Chrome Moly Alloy Flanges

F91, F22, F5, F11, F9, F92 ( ASTM A182 & ASME SA182 )
Alloy Flanges

U.S. Metals is a Premier Worldwide Supplier for All Your Chrome Moly Alloy A182 / SA182 Flange  Needs.

When moving high-temperature or corrosive media through Chrome Alloy Pipe from one process to the next, flanges capable of withstanding harsh environments are critical. Optimize your application with chrome moly alloy flanges from U.S. Metals.  

We are a specialty metals supplier and value-added service provider dedicated to delivering high-quality chrome moly alloy flanges on time and at a competitive price. With an industry-leading inventory of chrome moly alloy from leading manufacturers combined with a diverse set of secondary service capabilities, our team can supply flanges that will meet or exceed your critical project/plant specifications. 

At U.S. Metals, we can supply chrome moly alloy flanges in arrange of alloy grades, sizes and pressure classification. From custom flange face configurations to critical wall pressure ratings, our team can meet your needs.

Common grades we carry include:  ASTM/ASME A/SA182 Chrome Moly Pipe Flanges

  • F11
  • F22
  • F5
  • F9
  • F91

Chrome Moly Alloy Flanges Benefits

Chrome moly alloy flanges offer improved levels of chromiumand molybdenum. The added chromium helps increase the steel’s hardenability andcorrosion resistance, whereas the increased molybdenum helps bolster itstoughness and corrosion resistance. Additional characteristics of chrome molyflanges include:

  • Strong creep strength
  • Improved rigidity
  • Superior hardenability
  • Robust wear resistance
  • Good impact resistance
  • Easy to fabricate

Chrome Moly Alloy Flange Applications

Chrome moly alloy flanges connect pipes, valves, pumps and other equipment, forming a piping system. They are ideal for applications carrying corrosive or high-temperature fluids or gases. Industries that could benefit from chrome moly flanges include:

When you need superior chrome moly flanges for your application, U.S. Metals is your partner. Our knowledgeable and experienced materials solutions team has you covered.  Contact us today to learn more!



  • Trade Name
    Grade
    UNS #
    Flanges
    1 1/4 Chrome
    F11 Class 1
    K11597
    A182 / SA182
    1 1/4 Chrome
    F11 Class 2
    K11572
    A182 / SA182
    1 1/4 Chrome
    F11 Class 3
    K11572
    A182 / SA182
    2 1/4 Chrome
    F22 Class 1
    K21590
    A182 / SA182
    2 1/4 Chrome
    F22 Class 3
    K21590
    A182 / SA182
    5 Chrome
    F5
    K41545
    A182 / SA182
    9 Chrome
    F9
    K90941
    A182 / SA182
    F91
    F91
    K90901
    A182 / SA182
    F92
    F92
    K92460
    A182 / SA182
  • This specification covers forged low alloy flanges for use in pressure systems manufactured to specified dimensions or industry standard dimensional specifications. 

    For bars and products machined directly from bar refer to Specification A/SA739 for the similar grades available in this specification. Products made to this specification are limited to a maximum weight of 10 000 lb [4540 kg]. For larger products and products for other applications, refer to Specification A/SA336 / A/SA336M for the similar low alloy grades available in this specification.

    Several grades of low alloy steels are included in this specification. Selection will depend upon design and service conditions.

    Supplementary requirements are provided for use when additional testing or inspection is desired. These shall apply only when specified individually by the purchaser in the order.
It is the purchaser's responsibility to specify in the purchase order all ordering information necessary to purchase the needed material.

In addition to the ordering information guidelines in Specifications A/SA961 / A/SA961M, orders should include the following information:

  • Additional requirements, and
  • Description of flange and nominal dimensions (standard or special)
  • Requirement, if any, that manufacturer shall submit drawings for approval showing the shape of the rough forging before machining and the exact location of test specimen material.

Information provided in this page is in accordance with the 2013 Edition of the ANNUAL BOOK OF ASTM STANDARDS.
Refer to ASME B & PV Section II for non-identical A/SA requirements