--- title: "Silver Annealing" url: "https://uptonindustries.com/application/silver-annealing/" description: "Upton internally and externally heated salt bath furnaces for silver annealing, with carbon or stainless steel liners, electric or gas fired." site: "Upton Industries" updated: "2026-09-25T03:54:29+00:00" breadcrumbs: "Home > Applications > Silver Annealing" --- # Silver Annealing Upton internally and externally heated salt bath furnaces for silver annealing, with carbon or stainless steel liners, electric or gas fired. 2 Upton systems · Salt Bath - **Process:** Silver Annealing - **Equipment type:** [Salt bath furnaces](https://uptonindustries.com/application/silver-annealing/#route-salt) - **Systems:** 2 [Request a quote for a silver annealing system](https://uptonindustries.com/contact/?need=equipment&equipment=salt-bath&ref=Silver%20Annealing) ## Plan your equipment Send the silver form, part size, load and annealing requirements, and we’ll discuss an internally or externally heated salt bath furnace and liner for the work. ## Salt bath furnaces ### [Externally Heated Salt Pot Furnaces](https://uptonindustries.com/products/salt-bath-furnaces/externally-heated/) Externally heated salt pot furnaces with carbon-steel or stainless-steel liners, electric resistance heaters or Upton Hurricane gas burners, for intermittent service. ### [Internally Heated Salt Bath Furnaces](https://uptonindustries.com/products/salt-bath-furnaces/internally-heated/) Internally heated salt bath furnaces for non-chloride salts, with carbon-steel or stainless-steel liners. ## Externally or internally heated Link: https://uptonindustries.com/application/silver-annealing/#compare-salt-heating Both are steel-lined salt bath furnaces. They differ in where the heat enters the salt: through the wall of a pot, or directly in the bath. *Fig. 1 Where the heat enters the salt. Section views, not to scale.* *Externally Heated Salt Pot Furnaces & Internally Heated Salt Bath Furnaces compared* | | [Externally Heated Salt Pot Furnaces](https://uptonindustries.com/products/salt-bath-furnaces/externally-heated/) | [Internally Heated Salt Bath Furnaces](https://uptonindustries.com/products/salt-bath-furnaces/internally-heated/) | | --- | --- | --- | | Heat enters | From outside the pot, through its wall | In the salt, from heat sources immersed in the bath | | Electric | Electric resistance heaters | Immersion heaters for lower-temperature work; air- or water-cooled electrodes with transformers at elevated temperatures | | Gas | Upton Hurricane tangential burners, designed to minimize flame impingement on the salt pot | Radiant tubes | | Suited to | Intermittent service | Non-chloride salt applications | | Liner | Carbon steel or stainless steel, selected for the operating conditions | Carbon steel or stainless steel, selected for the operating conditions | | Drawings (PDF) | [Round: Upton Externally Heated Salt Pot Furnace (Round)](https://uptonindustries.com/wp-content/uploads/2018/04/externally-heated-salt-pot-furnace-round.pdf); [Square: Upton Externally Heated Salt Pot Furnace (Square)](https://uptonindustries.com/wp-content/uploads/2018/04/externally-heated-salt-pot-furnace-square.pdf) | [Electrodes: Internally Heated Salt Bath Furnaces (Electrodes)](https://uptonindustries.com/wp-content/uploads/2018/04/upton-internally-heated-salt-bath-furnace.pdf); [Heaters: Internally Heated Salt Bath Furnaces (Heaters)](https://uptonindustries.com/wp-content/uploads/2018/04/upton-internally-heated-salt-bath-furnace-heaters.pdf) | To quote either furnace, send us: - Part sizes - Load weight - Process temperature - The salt you plan to run ## Related processes - [Austempering 2 shared systems](https://uptonindustries.com/application/austempering/) - [Curing 2 shared systems](https://uptonindustries.com/application/curing/) - [Degreasing 2 shared systems](https://uptonindustries.com/application/degreasing/) - [Descaling 2 shared systems](https://uptonindustries.com/application/descaling/) - [Drawing 2 shared systems](https://uptonindustries.com/application/drawing/) - [Glass Strengthening 2 shared systems](https://uptonindustries.com/application/glass-strengthening/) ## Need a custom thermal solution? Send us your process details to start a quote. [Request a quote](https://uptonindustries.com/contact/?need=equipment&equipment=salt-bath&ref=Silver%20Annealing)