@tbuelna & @EdStainless: This has all been discussed with the customer. Threads will be rolled before aging. Customer had asked for thread rolling after aging but that is borderline impossible. There isn't a thread roller in the United States that would roll or could roll the threads after...
Thank you all for your responses!!
@metengr: We did consider a prototype but my customer doesn't have the time to wait for that. They are going to approve the use of larger diameter bar so we should be good-to-go.
Greg
System 22, Inc.
I have a customer who wants me to make a double end stud out of Inconel 718 per AMS 5962 (Capable of 220 KSI Tensile). The stud size is a 1-1/4" diameter (with an unthreaded body diameter of 1.111"). The only material I can get is 1-3/4" round. I raised the concern to my customer that...
Instead of a standard lockwasher, I would try a Nordlock washer, also called a "cam" washer. They prove to be superior to a standard lockwasher. To say that a lockwasher is completely useless is a bit of a generalization. In the correct applications, standard lockwashers prove to be more than...
I need a very small amount (6-3/4" OD x 5" ID x 9.625" long) of tube or pipe in ASTM A426 Grade CPCA15. I am machining a locking nut for a pump shaft and am having trouble sourcing the material. Any ideas?
Greg
System 22, Inc.
The ASTM A193-B8M, Class 2 spec calls out a solution anneal and cold drawn material. The cold work is what kicks up the tensile strength on this material. Is there a way to tell how deep the cold work goes in the material when it is cold drawn? I have a customer who wants to machine some B8M...
Will galvanic corrosion occur between Inco 625 and K500 material? I have a customer who wants to buy a Inco 625 Socket Head Cap Screw along with a K500 lockwasher. The environment will be subsea. I offered a K500 lockwasher b/c you can get a "true" lockwasher in this material where as with...
Good Afternoon,
I have attached a picture for reference. We supply ASTM A193-B7 studs that are Zinc Yellow plated to a customer who uses them to build a compressor. The studs are corroding quicker than expected. The flanges that these studs bolt up, are made of stainless steel so I suspect...
Customer decided to go with Inco 625 Bolts with two PEEK shoulder washers on each end. The shoulder washers will be long enough that they meet each other in the hole to make a insulating tube for the bolt. Thank you everyone for all your insight and help. This website is an excellent resource...
I did consider ceramic fasteners for this application but I didn't think I could get them in this diameter. Bolts and nuts will be 1/2-13 diameter/thread. I will check with Ceramco. Thanks for the info, Steve!
Greg
System 22, Inc.
The bolts are for a sensor. The sensor costs millions of dollars and cannot come in contact with conductive material or it will destroy it. The customer has proposed to use Inco 625 bolts with a Xylan Coating. The hole where the bolts will go will be coated with Delrin plastic. They will...
I have heard that Titanium is as conductive as wood. Is this true? I have a customer who is looking for some fasteners that will be placed in a deep sea environment but they cannot be conductive at all. They are fastening a sensor that costs millions of dollars and if a conductive metallic...
Thank you for your quick response! The reason they do want to use metallic fasteners is b/c they are trying to avoid conductivity. He did tell me that if plastic fasteners were not feasible, he would resort to metallic fasteners (Inconel 625) and use an insulating medium to reduce conductivity.
I have a customer looking for plastic fasteners that will hold up well in a deep sea environment but will also hold its load over a long period of time. Is there a plastic out there that would lend itself to these requirements?
