Pipe Nipples

Product Line    |    Technical Resources    |   FAQs

Your Trusted Source

Offering carbon welded, seamless and stainless steel pipe nipples for the industrial pipe-valve-fittings (PVF) market, Ward Nipple (formerly Wisconsin Nipple) also offers a complete line of quality stainless steel and brass nipples for sprinkler and plumbing applications.


We have been manufacturing pipe nipples since 1950, and have earned a reputation as the nipple industry’s fastest shipper for both standard and special orders.

Browse Our Pipe Nipples & Couplings Product Line
Picture of various pipe nipples and couplings

Pipe Nipples FAQs

  • What is the difference between welded and seamless pipe?

    Welded pipe is produced from a strip that is roll formed and welded to produce a tube. Seamless pipe is extruded from a billet. They are rolled and stretched until they meet the specified length, diameter, and wall thickness.

  • What is the difference between rollercut and square cut?

    Rollercut pipe is achieved by rotating a hardened cutter wheel around the pipe. A square cut is made at a right angle to the pipe. 

  • What is the difference between a standard bevel end and a reamed & chamfered end?

    A true bevel angle is 37.5° and a reamed & chamfered angle is 40°


  • Can I get an MTR on any pipe nipple?

    Only seamless and stainless steel pipe have traceable MTRs. 

  • What is the standard tolerance?

    The standard tolerance on our pipe nipples is +/- 1/16”. 

  • Are BSPT ends capped?

    Yes, they are always capped. 

  • What is the standard coating on pipe nipples?

    Standard coatings include a black lacquer or hot dipped galvanized. Pickled and oiled (P&O) pipe is best if you want to paint the pipe nipples.

  • What is the PSI rating for merchant couplings?

    Standard merchant couplings are designed for general purpose, low-pressure piping such as water, air, gas, and oil lines. Their governing standard, ASTM A865, does not list a specific pressure rating. 

  • Is galvanized pipe available in a 1/8” diameter?

    Yes, up to 4” in length. Four inches is the maximum length for which hot galvanizing will flow through and adequately coat the inside diameter of the pipe.