Chamber Casting Alloy Ingot aka low 158-190F
- in stock
- 1.00 LBS
- Calculated at Checkout
Bulk discount rates
Below are the available bulk discount rates for each individual item when you purchase a certain amount
|Buy 14 - 49||and get 5% off|
|Buy 50 - 99||and get 7% off|
|Buy 100 or above||and get 9% off|
Sold by the ingot. Ingot weighs approximately 1 pound.
Rotometals Chamber Alloy (158-190) is the best known material from which to make a casting of the chamber and throat of a firearm to determine caliber or check the dimensions. It melts at a temperature just above M & M's, so all you need is a propane torch and a bullet casting ladle. It can also be used to make a cast of a dovetail slot or any other hard to measure area. Also, it is great for removing the front half of a case from the chamber, in the event of case head separation; and lots of folks cast a small portion of the barrel to determine bore diameter. For best results, measure the casting one hour after casting. Contains 42.5% Bismuth, 8.5% cadmium, 37.7% lead, 11.3% Tin.
MEASUREMENTS 2.25" x 2.25" x .75"
- Plug the bore immediately ahead of the throat of the chamber using a small cleaning patch.
- Pour the alloy directly into the chamber until full and allow Melting Point to cool, it will turn a shiny silver color. As soon as it has cooled enough that it is no longer a liquid (and doesn't present a burn hazard), remove it from the chamber. Take care not to overfill the chamber as the alloy will then run into the locking lug area, making removal extremely difficult.
- During the first 30 minutes of cooling cerrosafe shrinks. At the end of one hour it should be "exactly" chamber size.
- Melts between 158 and 190 degrees Fahrenheit
- Should be melted in a clean iron ladle without direct flame on the product.
- The chamber being cast should be cleaned thoroughly and a thin coat of oil or graphite applied.
Contraction expansion factor versus time, measured in inch per inch compared to cold mold dimensions. Test Bar x 10 (Below measurements are x/10,000ths of an inch. ex: 0.0025" is 25/10,000ths of an inch)
- 2 minutes - .0004"
- 6 minutes - .0007"
- 30 minutes - .0009"
- 1 hour + .0000"
- 2 hours + .0016"
- 5 hours + .0018"
- 7 hours + .0019"
- 10 hours + .0019"
- 24 hours + .0022"
- 96 hours + .0025"
- 200 hours + .0025"
- 500 hours + .0025"
Price Per Pound:
Alloy ingot low 158-190F
I used this to cast a pyrite crystal to make a detector for a crystal radio I am making. I melted the alloy in a copper plumbing end cap using a heat gun and placed the crystal on top of the molten metal. The detector brought in a very strong signal.
chamber casting alloy
This alloy is ideal for making replicas of antique s that are missing metal parts. A mold can be made from parts to be replicated by using epoxy. The melting temperature of this alloy does not affect the mold.
Chamber casting alloy
Works just as good as i could expect. Was much more attractively priced than many alternatives.
Worked great! Timely delivery. I’m pleased!
Clean metal, fast service, excellent communication.
Chamber Casting Alloy Ingot
A speedy doorstep delivery in my case VIA FedEx as I live way up in the Sierra Nevada Mountains West of Yosemite National Park. All Items ordered were well packaged and were remarkably accurate as to their advertised weight. I had spent a good deal of time browsing the Rotometals Web page where found a treasure-trove of valuable data on their products. Highly recommended and I will continue to do business with them.