The Partner That Goes Beyond

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Our Calculators

We make determining the right product for you easy with our Nominal Pipe Conversion and Carbon Pipe Calculators.

Handles a variety of metals
Greater flexibility in part design
Enables precise fitting
Wide variety of industries
Produces a variety of tubular parts
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Weight Per Foot Calculator

Determine the weight per foot tubing and bar in a variety of shapes and commodities

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Nominal Pipe Conversion Calculator

Check out our conversion calculator to find out the nominal or actual size of a pipe.

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Our mission is to create and maintain a positive and ethical environment in which quality employees develop efficient and economical methods to purchase from responsible suppliers to warehouse, market and timely deliver quality tubular, pipe and bar products. And in order to provide the best possible customer service, we go beyond metal products to provide best-in-class services and solutions that support world-class businesses.

Blog coming soon Fall 2021

BLOG - coming early 2022

Marmon's Kickoff Blog

These are exciting happenings indeed! Over these next months, Marmon will be proudly presenting the latest news in steel, trucking, industrial, and worldwide data.

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Marmon's Kickoff Blog
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Webflow sponsors a Girls Who Code summer program

Contact Marmon/Keystone

We’re ready to answer all of your questions; reach out below and a steel specialist will get in touch shortly.