Stainless Steel Pipe, Valves, Fittings & Flanges

304, 304L, 304H, 316, 316L, 316H, 321, 321H, 347, 347H, 317L

U.S. Metals is a premier worldwide supplier for all your Stainless Steel Seamless Pipe, Welded Pipe, Heater Tubes, Buttweld Fittings, Flanges, Forged Fittings, Forged Valves, Stainless Steel Cast Valves.

Our Stainless Steel inventory is unsurpassed and is considered one of the most extensive stainless steel 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 stainless steel 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
    304
    304L
    304H
    316
    316L
    316H
    321
    321H
    347
    347H
    317L
    UNS #
    S30400
    S30403
    S30409
    S31600
    S31603
    S31609
    S32100
    S32109
    S34700
    S34709
    S31703

    Seamless & Welded Pipe
    (without Filler Metal)

    A312
    SA312
    A312
    SA312
    A312
    SA312
    A312
    SA312
    A312
    SA312
    A312
    SA312
    A312
    SA312
    A312
    SA312
    A312
    SA312
    A312
    SA312
    A312
    SA312
    Welded Pipe
    (with Filler Metal)
    A358
    SA358
    A358
    SA358
    A358
    SA358
    A358
    SA358
    A358
    SA358
    A358
    SA358
    A358
    SA358
    A358
    SA358
    A358
    SA358
    A358
    SA358
    A358
    SA358
    Seamless Pipe
    A376
    SA376
    ----
    A376
    SA376
    A376
    SA376
    ----
    A376
    SA376
    A376
    SA376
    A376
    SA376
    A376
    SA376
    A376
    SA376
    ----
                           
    Heater Tubes
    A213
    SA213
    A213
    SA213
    A213
    SA213
    A213
    SA213
    A213
    SA213
    A213
    SA213
    A213
    SA213
    A213
    SA213
    A213
    SA213
    A213
    SA213
    A213
    SA213
     
    Buttweld Fittings
    A403*
    SA403*
    A403*
    SA403*
    A403*
    SA403*
    A403*
    SA403*
    A403*
    SA403*
    A403*
    SA403*
    A403*
    SA403*
    A403*
    SA403*
    A403*
    SA403*
    A403*
    SA403*
    A403*
    SA403*


    Forged Valves
    A182
    SA182
    A182
    SA182
    A182
    SA182
    A182
    SA182
    A182
    SA182
    A182
    SA182
    A182
    SA182
    A182
    SA182
    A182
    SA182
    A182
    SA182
    A182
    SA182
    Forged Fittings
    A182
    SA182
    A182
    SA182
    A182
    SA182
    A182
    SA182
    A182
    SA182
    A182
    SA182
    A182
    SA182
    A182
    SA182
    A182
    SA182
    A182
    SA182
    A182
    SA182
    Flanges
    A182
    SA182
    A182
    SA182
    A182
    SA182
    A182
    SA182
    A182
    SA182
    A182
    SA182
    A182
    SA182
    A182
    SA182
    A182
    SA182
    A182
    SA182
    A182
    SA182
                           
    Plate
    A240
    SA240
    A240
    SA240
    A240
    SA240
    A240
    SA240
    A240
    SA240
    A240
    SA240
    A240
    SA240
    A240
    SA240
    A240
    SA240
    A240
    SA240
    A240
    SA240
    Bar
    A276
    SA276
    A276
    SA276
    ----
    A276
    SA276
    A276
    SA276
    ---
    A276
    SA276
    ----
    A276
    SA276
    ----
    ----

    Cast Steel Valves
    A351
    SA351
    A351
    SA351
    ----
    A351
    SA351
    A351
    SA351
    ---
    ----
    ----
    A351
    SA351
    ----
    A351
    SA351
    Grade
    CF8
    CF3
    ----
    CF8M
    CF3M
    ---
    ----
    ----
    CF8C
    ----
    CG8M
    UNS #
    J92600
    J92700
    ----
    J92900
    J92800
    ----
    ----
    ----
    J92710
    ----
    J93000
    ( Please note different UNS Number for Cast Steel Valves )


    * The Following must be included with the ASTM designation and graded for the description to be complete:

    CR Corrosion resistant grade. S through WU Classes do not apply.
    WP-S Seamless
    WP-W Welded, RT or UT all pipe starting material welds made with filler metal. All fitting manufacturer welds except as excluded in A/SA403 paragraph 5.4.3.
    If UT is substituted for RT, all welds must be examined 100% for their length as required by A/SA403 paragraph 5.6
    WP-WX RT all welds with or without filler metal.
    WP-WU UT all welds with or without filler metal.
    WPgrade-grade-class Insert grades (304-304L) and class (S,W,WX, or WU). Applies to fittings meeting all chemical and physical requirements of both grades.

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