July 2017


(Birmingham, AL) —Birmingham-based Jemison Metals was named Physical Metals Service Provider of the Year by S&P Global Platts at an event held in London. S&P Global Platts is a leading global energy, metals and commodities information provider, and their annual awards event recognizes exemplary performance in 15 categories spanning the entire steel, metals and mining complex.

The independent panel of judges credited Jemison Metals with “leveraging technology in innovative new ways to improve productivity for customers.” Jemison enjoys a 99% customer retention rate, 98% on-time delivery rate, and has grown its market share by 17.7%. This growth and retention performance is a testament to Jemison’s cornerstones; on-time, highquality, in-stock, and personal service. With entrants from 18 countries, the Platts award is one of the most respected in the industry

“Winning an award on the international stage is always an honor” said Pete Heinke, Jemison Metals CEO, “but this one is particularly meaningful because it recognizes innovations we made on behalf of our customers, toward enhancing their experience. Our strength lies in our ability to work in unison with our clients to optimize their supply chain and drive out waste wherever it hides. The processes and best practices we develop support that effort. We’re more like a supply chain company that happens to be in the steel business.”

Jemison Metals is a leading provider of carbon flat-rolled products. Jemison has a 125 team members, in 5 facilities within four states including; Alabama, Virginia, Ohio, and South Carolina. Visit jemisonmetals.com

S&P Global Platts is a division of S&P Global (NYSE: SPGI), which provides essential intelligence for individuals, companies and governments to make decisions with confidence. For more information, visit www.platts.com.

July 2016


(Birmingham, AL) —Birmingham-based Jemison Metals has been recognized by the American Metal Market at the national Awards for Steel Excellence . At the annual convention in New York, Jemison was named Most Outstanding Service Center.

Nominees were judged according to a variety of criteria including customer retention rates, customer service initiatives, technological innovations, operational improvements, and sales performance over the previous year.

From the American Metal Market: “(Jemison’s) retention and customer satisfaction goes beyond industry standards and calls attention to its ability to provide value added services to customers, such as seamless service and execution through contract management technology; extensive industry knowledge and experience; effect cost-saving initiatives; supply chain optimization and competitive, transparent pricing; and strategic purchasing programs.”

Jemison Metals experienced a 99% customer retention rate in 2015 and a 98% on-time delivery rate. Additionally, while the carbon flat-rolled steel industry saw a 7.2% decrease in shipments 2015, Jemison Metals increased their shipments by nearly 6%.

“Our team has planned for and pursued elite customer satisfaction for many years,” said Pete Heinke, CEO at Jemison Metals. “Our baseline of operational efficiency allows us to focus on developing innovations that affect our customers’ bottom lines. Being honored for it at the national level is certainly gratifying and is the result of each and every team member in our company making a priority of customer relationships. We are grateful for those loyal relationships, and we’ll continue to work to earn their loyalty.”

Other finalists included Worthington Industries of Columbus, Ohio, Klein Steel Service, Inc. of Rochester, NY, Midwest Materials, Inc. of Perry, Ohio, and Pacesetter of Kennesaw, GA.

Jemison Metals is a leading provider of carbon flat-rolled products. Jemison Metals has 125 team members and in four states. With 412,000 square feet of warehouse space, Jemison has facilities in Birmingham, Gadsden, and Decatur, AL, Lynchburg, VA, Cleveland, OH, and Sumter, SC. Visit jemisonmetals.com.

December 2015

Jemison Metals agrees to purchase O’Neal Flat Rolled Metals’ Lynchburg Virginia Facility

Jemison-Demsey, LLC d/b/a Jemison Metals Birmingham, Alabama, has entered into a definitive agreement to purchase the assets of the Lynchburg Virginia facility of O’Neal Flat Rolled Metals, Brighton CO. The transaction is scheduled to close on or before December 31, 2015.

In announcing the intent to purchase, Peter Heinke, Chief Executive Officer of Jemison-Demsey, LLC said:

“All of us at Jemison Metals are extremely excited with the opportunity the Lynchburg operation presents Jemison to grow our business and expand our geographic footprint. We see the Mid-Atlantic area as an important and growing market in the metals sector and we are committed to building on the excellent reputation O’Neal Flat Rolled Metals has earned in their many years of serving this market. With that said, we want to emphasize that our immediate interest is to provide the existing Lynchburg customers, suppliers and employees with the confidence that Jemison Metals will be a good business partner. Our highest priority is to earn their trust and respect through our unwavering commitment to service excellence and by creating a “great place to work” for all of our employees.”

The Lynchburg facility will become Jemison Metals fifth processing location. Other locations include: Cleveland, Ohio; Sumter, South Carolina; Decatur, Alabama and Gadsden, Alabama. Jemison- Demsey, LLC is a wholly owned subsidiary of Metal Solutions, LLC a Delaware corporation.

October 2013

Temper Mill vs. Stretcher Leveler (Cut to Length Lines)

Temper Mill cut to length lines and Stretcher Leveler cut to length lines have both been successfully utilized in applications where superior flatness and stability are required.  Typically these applications include lasers, plasmas, or punch presses.  When operated properly, both processes provide sheets/plates with minimal residual stress; however, the mechanisms to achieve this low residual stress state are different.


This article will discuss only one of the many Temper Mill uses; to improve shape in conjunction with a roller leveler on a cut to length line.

Temper mills work the sheet/plate material utilizing compression.  The material thickness is compressed and elongated in the rolling direction.  However, as temper mills do not have selective roll-bending across the strip width, a roller leveler must be used subsequent to the temper mill to create the final sheet/plate flatness and to correct for any remaining shape defects (coil set, edge wave, center buckle etc).  Additionally, it is important that the incoming material “crown” profile (thicker center and thinner edges) match the temper mill roll profile, otherwise shape defects can be induced.

In applications where superior flatness and stability are required, temper mill cut lines have provided superior product to “roller leveler only” product and have been generally accepted as suitable for these applications.  It is important to note that temper cut lines do not evenly exceed the yield strength of the material through the full thickness of the material (a gradient of multiple yield strains to zero exists from the surface to the centerline) and that the roller leveling that occurs after “tempering” actually introduces some residual stresses into the strip to create final sheet/plate flatness.  Maximum shape correction is limited only by the % reduction capability of the temper mill (typically in the 2%-3% or 2000-3000 i-unit range); however, in practical application the specific order minimum gauge may limit the amount of correction allowed.


Stretcher Levelers

Modern stretcher levelers have gained acceptance in applications requiring minimal residual stress.  In these applications, stretcher levelers have provided superior product to “roller leveler only” product and have been generally accepted as suitable for these applications.

Although some stretcher levelers have a flattener installed prior to stretching, it is beneficial to have a roller leveler installed prior to stretching in order to adequately remove crossbow (width-wise surface to surface length differential).  This is important because the stretching portion of the process improves only length-wise shape defects (coil set, edge wave, center buckle, camber).

During the stretch cycle, the machine grips the steel and plastically deforms/stretches along the entire stretch length. This stretching is similar to the stretching associated with a tensile test.  The plastic deformation is performed under tension vs the compression utilized by a temper mill.  The yield strength of the steel is exceeded across the entire cross section of the material, which provides an “equalized” stress state in the sheet/plate.  Additionally, the stress equalization process is the last process to occur prior to shearing so no further residual stresses are induced.  One of the other benefits of stretcher leveling is that camber can be improved during the stretching process.

Maximum shape correction of a stretcher leveler is limited by two things.  First, the width-wise shape correction (crossbow) is limited by the roller leveler horsepower and separating force.  Second, the length-wise shape correction is limited by the % elongation maximum of the stretcher (hydraulic cylinder stroke ÷ stretch length, typically in the 2% or 2000 i-unit range).  As with the temper mill above, in practical application the specific order minimum gauge may limit the amount of correction allowed.


“Temper Pass” Required

There are multiple reasons to specify temper passed material.  In some cases the need for temper pass may be generic in nature and stretcher leveled product is comparable, while in some cases it is not.  Table 1 below lists the typical end user reasons for specifying temper pass and if stretcher leveled product is an acceptable alternative.

Table 1:  Typical End User reasons for specifying Temper Pass and if Stretcher Leveled Product is a comparable alternative.

Reason for Temper Pass Requirement (End User) Stretcher Leveled Acceptable? Notes
Shape/Flatness Yes  
Minimal Residual Stress (Stability) Yes  
Coil Break Prevention Yes* *If the Stretch Leveler Line has the appropriate coil break prevention equipment
Flatten Existing Coil Breaks No YPE is typically associated with fluting, orange peel, stretcher strain lines, luders bands, etc
Remove Yield Point Elongation (YPE) Yes  

Table 2:  Comparison of some of the benefits & limitations of the three main leveling technologies.

  Roller Leveler Only Temper Mill/Leveler Leveler/Stretcher
Shape Improvement Method Bending/Unbending (Alternating tension/compression) Mainly Compression via the temper mill Mainly Tension via the stretcher
Capital Cost Low High Medium
Operating Speed High High Medium
Coil Set Improvement Yes Yes Yes
Cross Bow Improvement Yes Yes Yes
Edge Wave & Center Buckle Improvement Yes Yes Yes
Surface Roughness Modification No Yes No
Camber Improvement No Some


Twist Improvement No Some Yes
Flatness Potential < 5 i-Units < 5 i-Units < 5 i-Units
Shape Improvement Potential < 200 i-Units 2000 i-Units +1 2000 i-Units +1
Residual Stress (Stability) Low-Medium

High (Better width-wise stability)

High (Better Length-Wise Stability)

1 The shape improvement potential of temper mills and stretcher levelers are line specific and dependent upon design capacities. These values are given as a reference relative to typical roller levelers for comparison purposes.

The link below is a May 2013 article from Modern Metals entitled “Upgrade to flat material”.  It discusses stretch leveling vs temper mill cut to length lines from the viewpoint of a service center that operates both types of lines.



by Rick Rowland