![hardening of steel components in a foundry - red-hot components come out of the oven Stock Photo | Adobe Stock hardening of steel components in a foundry - red-hot components come out of the oven Stock Photo | Adobe Stock](https://as2.ftcdn.net/v2/jpg/03/24/53/23/1000_F_324532394_wDs1gQgb601towgOOKWD4Je9nowX9rjw.jpg)
hardening of steel components in a foundry - red-hot components come out of the oven Stock Photo | Adobe Stock
![Single Chamber Hardening Furnace K-181822 | Single Chamber Hardening Furnace K-181822 | Keith Company Single Chamber Hardening Furnace K-181822 | Single Chamber Hardening Furnace K-181822 | Keith Company](https://www.keithcompany.com/includes/work/image_cache/jpg/0d0af861f7417c1fda1f7ef9df36b9ec.thumb.jpg)
Single Chamber Hardening Furnace K-181822 | Single Chamber Hardening Furnace K-181822 | Keith Company
![Hardening, tempering, annealing and forging of steel; a treatise on the practical treatment and working of high and low grade steel .. . Hardening and Annealing Oven. Oil Tempering Purnace. THE STANDARD Hardening, tempering, annealing and forging of steel; a treatise on the practical treatment and working of high and low grade steel .. . Hardening and Annealing Oven. Oil Tempering Purnace. THE STANDARD](https://c8.alamy.com/comp/2AJ85RB/hardening-tempering-annealing-and-forging-of-steel-a-treatise-on-the-practical-treatment-and-working-of-high-and-low-grade-steel-hardening-and-annealing-oven-oil-tempering-purnace-the-standard-llfatind-tools-ii-of-the-world-are-the-gas-blast-furnaces-and-heating-machines-for-hardening-tempering-annealing-and-all-other-mechanical-heating-processes-made-hy-american-gas-fvrnace-co-23-john-street-new-york-send-for-catalog17k-if-youre-a-good-guesser-and-havent-anything-else-to-do-you-may-be-ableto-get-right-results-from-the-old-coke-or-coalfurnace-even-then-you-could-make-a-lot-mo-2AJ85RB.jpg)
Hardening, tempering, annealing and forging of steel; a treatise on the practical treatment and working of high and low grade steel .. . Hardening and Annealing Oven. Oil Tempering Purnace. THE STANDARD
![Tempering in oven. How long at what temp do you prefer for your tools? Instructor says 3hr@375. : r/blacksmithing Tempering in oven. How long at what temp do you prefer for your tools? Instructor says 3hr@375. : r/blacksmithing](https://i.redd.it/e7asu54mrih81.jpg)