Maruichi Leavitt Pipe & Tube products are manufactured by the electric resistance welded process, using black carbon steel hot coils, pickled hot coils, and cold rolled coils. Our equipment has been developed and tailored to reduce labor costs while satisfying our customers specific needs for quality products. All flat-rolled carbon steel which is used to produce our tubing and pipe is ordered to exacting specifications, and then formed to close industry standards to maintain quality in the finished product. These high standards are carried over to our production process. Dedicated operators and engineers make use of sophisticated on-line testing equipment to ensure that our customers receive a superior product. Our modern technology permits the most efficient production possible and our highest quality products.

quality steel tubular products

Quality Steel Tube at its Finest

Manufacturing Process

Interested in learning how we turn flat roll steel coils into steel tubular products? 

Quality Policy

We are dedicated to the production of quality steel tubular products

ISO 9001:2015

Maruichi Leavitt Pipe & Tube is registered to the ISO 9001:2015 quality management standard.

In-House Testing 

Our in-house testing includes:

Tensile, Yield & Elongation

Wall to Wall Flattening

Flare Testing

Rockwell Hardness Testing


Micro Analysis


Maruichi Leavitt Pipe & Tube is dedicated to being a responsible corporate citizen in protecting the environment. We are committed to complying with accepted environmental practices which includes:

Committed to meet or exceed applicable legal and other requirements

Strive for continual improvement in our environmental management system

Minimize the creation of waste and pollution 


What is LEEDs? According to the U.S. Green Building Council, it's an acronym for Leadership in Energy and Environmental Design (LEED.) This is a nationally recognized certification system designed to standardize green building design and fabrication. For additional details, check out their informative website (

Maruichi Leavitt Pipe & Tube generates, upon request, certification letters for LEED developments. In this documentation, we provide the recycled steel content of our tubing as required for LEED projects. 


We work with independent laboratories to conduct industry tests including:

Chemical Analysis

Charpy Impact Testing

Drop Weight Tear Testing


Facility-Specific Environmental Product Declaration

Environmental Product Declaration (EPD) for Hollow Structural Sections (HSS) and related products such as standard pipe and mechanical tubing. This EPD can be used to calculate credits within the LEEDv4 rating system and to meet a growing number of procurement requirements for government and industry, including Buy Clean legislation. Download a copy of our Facility-Specific Environmental Product Declaration (EPD).

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