menu Menu

Minimum Radius Bending

Having developed a variety of steel bending processes, Chicago Metal Rolled Products has great expertise in curving structural steel, plate and sheet to tight radii without any distortion.  Such tight bending can be done with angle, bar, beam, channel, pipe, tube, tees, sheet and plateMulti-radius bends, helical bends, off-axis bends, compound bends and reverse curves can also be produced with minimum bending radii.

Minimum Radius Bending Images

Minimum Radius Bending Capacities

We can now produce curved steel with minimal distortion: a W6 x 12# beam hard way to a 14" inside radius; a C8 x 18.5# channel hard way to a 4'4" inside radius; a W16 x 57# beam hard way to a 12' radius; and an 8 x 8 x 1/4 tube to a 15' radius. 

With mandrel tube bending, the company can form 6" schedule 40 pipe to a 12" center line radius, a 2D bend.  With other processes, we can bend tighter. 

Our heavy plate rolls can form a 1-1/2" plate 45" long rolled to a tight 24" inside diameter. Our sheet rolls can form 18-24 gauge pipe 10' long down to 3" diameter. Our angle rolls can bend ½ x ½ x 1/8 angle leg-in angle to a 4" OD.  And we can roll all the sizes from the largest to the smallest to the tightest radii.

Because our capacities are always improving, you should call us with your most challenging requirements.

Minimum Radius Bending Value-Added Services

In addition to steel bending of very tight radii, the company can also perform ancillary operations including welding, punching, forming, beveling, drilling and grinding.

Minimum Radius Bending Applications

Examples of applications requiring a minimum bending radius include the tight 12' radius of the half ellipses that form the top of the train tube at the student center of the Illinois Institute of Technology, an example of multi-radius tight bending.  The western edge of the Chicago Bears home, Soldier Field, contains boomerang shaped beams also with very tight radii.

Mandrel tube bending of 6" pipe to a 12" center line radius is used as piping for General Electric generators and for roll-over protection on construction and agricultural equipment.

Lastly, many visitors to our display booth at various trade shows have seen our "sculpture" of curved steel sections and have marveled at the tight bending with no distortion.  When we tell them that all these bends were made cold, they are even more amazed.

Contact us for more information on minimum radius bending.


  • "The quality and accuracy of CMRP's Work is outstanding."
    Eric T., Illinois
  • "Please pass on a big thank you to your team. All of the folks here that have seen the parts have provided me with the most positive feedback possible. Your company has new fans here."
    Bruce E., Kansas
  • "Without CMRP able to roll these channels to my specifications, there was no way this beautiful round antenna would have ever worked. This is the first round weather radar antenna of its kind in the world and the fabrication recipe (starting with your rings) that produced the antenna actually went together without issue and seems to be very repeatable."
    Damon S., Wisconsin
  • "My customer has installed several truck loads worth of 36" x 160# WF beams you rolled and cambered for us. He was very pleased with the quality of your work. Thank you for your attention to detail and the quality of work you produce."
    Justin J., Alabama
  • "The rolled stringers were right on the button as far as pitch and radius."
    Bob O., Illinois
  • "I really appreciate your company coming through on this order and expediting the material when you said you would. It is nice to know when someone gives you a date they follow through with it and stick by their word. Thanks again!"
    Jason R., Missouri
  • "The last order of rings were the best that we have received from you. The flanges were all flat. Keep them coming like that."
    Lenny P., Ohio
    Peggy, Texas
  • "The ring looks good! The OD is dead on. Thank you for your concerns regarding our questions and responding so quickly. I was impressed! It is quite apparent that Chicago Metal is customer-service oriented."
    Fran Z., Pennsylvania
  • "Please pass on to the workers, . . . (your) rings . . . were some of the best our fitter has seen."
    Jeff K., Illinois
  • "I want to thank CMRP for performing as you promised. You are ahead of schedule and the strakes are fitting great. In addition, thank you for actually exceeding what you promised."
    Jim A., New York
  • "Your advice was a significant contribution to the project."
    John Z., Illinois
  • "These pipes were rolled DEAD ON. The guys in the shop said they had never seen a pipe come in and hit every point like that in a long long time."
    Joe C., Missouri
  • "The rolling on these rectangular tubes was absolutely perfect! Barely any adjustment needed to be made."
    Tom G., Massachusetts
  • “We just placed an order for a few Rolled Angle Rings (for a Rush project), and Chicago Metal rolled the angles (and had them delivered) to us within 2-1/2 days ..(For the record, we are three states away from them).”
    Jim S., Pennsylvania
  • “I would like a quote on a spiral project. I have heard many good things about your quality and timeliness from other fabricators.”
    Ryan L., Utah
  • “The rolled beams were delivered yesterday and look very good. Thank you for great service!”
    Thomas S., Maine
  • “I’ve worked with CMRP for over 16 years and can rely on them for any size job and in any time frame. There is an ease of doing business with CMRP. They have great people working for them on all levels which makes it enjoyable to do business with their company. Good service matters a lot in this industry and CMRP delivers every time.”
    Mindy, H., Indiana
  • “It is unbelievable how good a job you guys did rolling these beams.”
    Richard G., Canada
  • “You all helped us out greatly when no one else seemed they could. Everything worked out wonderfully!”
    Cliff P., Florida
  • “The parts are very impressive and the service was stellar. I will certainly be using your company in the future for any similar work as well as recommending you to anyone needing such services.”
    Randy W., Georgia
  • “We got everything we needed in a very short turnaround, I appreciate it – so much in fact I have been talking up CMRP to the other theatres in town on our forum group. We are happy to have a reliable source to turn to.”
    Russell P., Illinois
  • “Quote was great! Timely, appropriate, and frankly less money than we expected.”
    James L., New York
  • “Our customer did not respond until mid afternoon, 2 days before they needed the job installed, with the parts they needed. I contacted CMRP, who immediately took action and shipped out my order the same day! This all happened like clockwork, allowing us to meet the deadline.”
    Margo R., Ohio
  • “Material on time and right on spec.”
    Dave F., Pennsylvania
  • “We only use CMRP for our rolling needs. We can always depend on getting a finished product that is to our expectations or better no matter the quantity.”
    David P., New York
  • “You are on top of it this morning!! I wish everyone could get quotes back that fast! That is why we use you, fast response to quotes and questions and great quality!”
    Will F., Indiana
  • “Great Pricing. Thank you!”
    Gabe H., Indiana
  • “Your quotes are always so well organized and thorough, I trust your work.”
    Jessica, South Carolina
  • “On larger more complex rolling items, I typically only go to Chicago Metal Rolled Products for pricing due to quality.”
    Kevin H., Pennsylvania

Request A Custom Quote

Upload File (5MB):