Chrome Moly Alloy Cast Valves

C12A, C12, WC6, WC9, C5 ( ASTM A217 & ASME SA217 ) - Alloy Cast Valves

U.S. Metals is a premier worldwide supplier for all your Chrome Moly Alloy A217 / SA217 Cast Valves needs.

Our Chrome Alloy Cast Valves inventory is unsurpassed and is considered one of the most extensive chrome inventories in the world!

Turnarounds or outages, planned retrofits or emergency situations, grassroots projects worldwide; U.S. Metals has the experienced staff to assist you on all of your specialty alloy requirements, no matter how detailed the specification, no matter how difficult the situation.

New industry requirements, not an issue. We work closely with agencies like EPRI along with our utility and refining clients to be on the cutting edge of new industry requirements that affect your high energy/high temperature piping systems.

Our inventory is evolving to meet the new specifications that prevent current issues as creep cracking and hardness problems.



  • Trade Name 
    Grade
    UNS #
    Cast Valves
    1 1/4 Chrome 
    WC6
    J12072
    A217 / SA217
    2 1/4 Chrome 
    WC9
    J21890
    A217 / SA217
    5 Chrome 
    C5
    J42045
    A217 / SA217
    9 Chrome 
    C12
    J82090
    A217 / SA217
    91
    C12A
    J84090
    A217 / SA217
    Refer to Standard ASME B16.34. This Standard applies to new valve construction and covers pressure-temperature ratings, dimensions, tolerances, materials, nondestructive examination requirements, testing, and marking for cast, forged, and fabricated valves.
  • This specification covers alloy steel castings for valves intended primarily for high-temperature and corrosive service.

    Selection will depend on design and service conditions, mechanical properties, and the high-temperature and corrosion-resistant characteristics.

    The grades covered by this specification represent materials that are generally suitable for assembly with other castings or wrought steel parts by fusion welding. It is not intended to imply that these grades possess equal degrees of weldability; therefore, it is the responsibility of the purchaser to establish for himself a suitable welding technique.

    Since these grades possess varying degrees of suitability for high-temperature and corrosion-resistant service, it is also the responsibility of the purchaser to determine which grade shall be furnished, due consideration being given to the requirements of the applicable construction codes.

The inquiry and order should include or indicate the following:

  • A description of the casting by pattern number or drawing (dimensional tolerances shall be included on the casting drawing)
  • Grade of steel
  • Options in the specification,
  • Whether the castings are to be produced using the investment casting process, and
  • The supplementary requirements desired including the standards of acceptance.
Information provided in this page is in accordance with the 2013 Edition of the ANNUAL BOOK OF ASTM STANDARDS
Refer to ASME B & PV Code Section II for non-identical A/SA requirements.