The Ergo 12” cabinet pull is a slim curvaceous and very strong piece that belies its delicate features. It is cast either in 316 stainless steel or silicon bronze and both alloys perform well in terms of tensile strength. In other posts I have described how the chemistry of each, and the method of manufacturing impacts the strength, corrosion resistance and malleability of each alloy.
Tensile strength is measured in terms of yield strength and ultimate strength. The former indicates the metals’ ability to be stressed to the point where it is distorted or does not return to its original cast shape. Ultimate strength refers to the breaking point of a metal (see footnotes at the end of this post).
Recently the Ergo cabinet pull has been specified for use on closet doors and the customer needed reassurance that the pull was strong enough to act as a door pull. To demonstrate this, I used a heavy display board laden with several pieces and weighing a total of 40lbs and easily lifted it using the Ergo pull.
While an alloys strength is important if a pull is to be used for a heavy door it is worth noting that the hinges of the door take the brunt of the heavy lifting and their number and strength will have a greater bearing on the pull’s performance.
The scale of a cabinet pull is equally important when assessing its suitability as a door pull. The closet doors in this instance were double doors each measuring 18” W by 90”H so worked well with a 12” pull.
Step by Step process till a sophisticated 2 tone gem is created;
1. Red Wax Replicas made in a rubber mold for every pull one wax will be made; each will be shelled then invested with 316 stainless steel
2. Once cast the pieces are ground to remove the gates, the pieces are cleaned and then each is polished on all sides
3. Top photo if you zoom in you will see how the pull is masked with blue tape - once in place the piece is sand polished with a fine grit of sand to create a satin finish. The end result is a 2 tone polished-satin finish.
