Nickel Alloy Cast Valves

Incoloy®, Alloy 20®, Monel® 400, Inconel®, Nickel 200, Nickel 201 - Cast Valves

U.S. Metals is a premier worldwide supplier for Nickel Alloy Cast Valve needs.

Our ability to provide Nickel Alloy Cast Valves on a project basis is one of our strongest capabilities and is unmatched in our industry.

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.



  • Specification A/SA351 specifically addresses castings for producing various pressure containing parts, including valves. Specifications A743, A744 and A/SA494 do not specifically address valves. They apply to all cast products intended for use in a corrosive environment.
  • Each of the four specifications have ordering information guidelines as a part of the specification.
    These include, but are not limited to the following:

    A/SA351:
    1) Description by pattern number or a drawing with dimensional tolerances.
    2) Grade of material.
    3) Acceptance of any options offered in the specification.
    4) Any supplementary requirements desired.
    5) Standards of acceptance.

    A743:
    1) Description by pattern number or drawing.
    2) Grade of material.
    3) Heat treatment.
    4) Acceptance of any options offered in the specification.
    5) Use of the investment casting process.
    6) Any supplementary requirements desired.
    7) Acceptance standards.

    A744:
    1) Identify wetted surface(s).
    2) Description by pattern number or drawing.
    3) Grade of material.
    4) Heat treatment.
    5) Acceptance of any options offered in the specification.
    6) Use of the investment casting process.
    7) Any supplementary requirements desired.
    8) Acceptance standards.

    A/SA494:
    1) Quantity.
    2) Material grade and heat treatment class.
    3) Heat treat condition.
    4) Any purchaser repair welding requirements.
    5) Purchaser source inspection requirements, if any.
    6) Marking of heat numbers on individual castings. If desired, they shall be as agreed upon by the manufacturer and purchaser.
    7) Any supplementary requirements desired.
    8) Acceptance standards.
Information provided in this page is in accordance with the 2013 Edition of the ANNUAL BOOK OF ASTM STANDARDS Section One Volume 01.02.

Refer to ASME B & PV Code Section II for non-identical A/SA requirements.