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Stainless Steel Seamless Pipe

TP347, TP347H, TP321, TP321H, TP317L, TP316, 316H, 316L, TP304, 304H, 304L ( ASTM A312/376 & ASME SA312/376 ) - Seamless Pipe

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U.S. Metals is a Premier Worldwide Supplier for All Your Stainless Steel A/SA312 & A/SA376 Seamless Pipe Needs.

Our Stainless Steel Seamless Pipe 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 
    Grade
    UNS #
    Stainless Steel Seamless Pipe
    304
    TP304
    S30400
    A312 / SA312
    A376 / SA376
    304L
    TP304L
    S30403
    A312 / SA312
    ----
    304H
    TP304H
    S30409
    A312 / SA312
    A376 / SA376
     
    316
    TP316
    S31600
    A312 / SA312
    A376 / SA376
    316L
    TP316L
    S31603
    A312 / SA312
    ----
    316H
    TP316H
    S31609
    A312 / SA312
    A376 / SA376
     
    321
    T321
    S32100
    A312 / SA312
    A376 / SA376
    321H
    TP321H
    S32109
    A312 / SA312
    A376 / SA376
     
    347
    TP347
    S34700
    A312 / SA312
    A376 / SA376
    347H
    TP347H
    S34709
    A312 / SA312
    A376 / SA376
     
    317L
    TP317L
    S31703
    A312 / SA312
    ----
             
    Materials in industry standard designations: 5S, 10S, 40S, 80S per B36.19
    Special customer designated nominal and minimum wall thicknesses can also be furnished.
    Non standard OD & ID are available.

  • These specifications cover seamless pipe intended for high-temperature general corrosive and central station services.

    Optional supplementary requirements are provided for pipe in these specifications for inclusion in the order. They address items such as additional testing and heat treatment.

    Standard dimensions of seamless stainless steel pipe are shown in ANSI B36.19. Pipe having other dimensions is permitted to be ordered and furnished provided such pipe complies with all other requirements of the specification.

  • Orders for material to Specifications A/SA312 shall conform to the requirements of the current editions of Specifications A/SA999 and A/SA999M. Paragraph 3 of Specifications A/SA376 provides the requirements for ordering 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