VLAKVARK FORGE HEAT TREATMENT SERVICES
Heat treatment services for Bladesmiths
At Vlakvark Forge Services we heat treat most grades of steels, both Carbon, Stainless & Damascus, up to a maximum length of 900mm (36″). We cannot heat treat High Speed Steels (M2, M42 etc).
We currently run our heat treatment 1 or 2 days every week depending on other workload factors at the forge.
All heat treatment is effected from a digitally controlled furnace and blades are quenched in our own hybrid system which is a combination of an appropriateyl formulated mineral quench oil and a quench press designed to virtually eliminate distortion in the blade.
We do not work with a protective atmosphere but instead use anti-scaling paints to reduce decarburisation and minimise scaling. All blades are sand blast cleaned prior to dispatch. Please make a note on the Information Sheet that you must send with your blades if you do NOT want sand blast cleaning.
We offer a tang softening service for hidden tang blades (highly recommended) and a hamon service for plain high carbon steel blades (1080, 1095, 26C3 etc). Just sketch the hamon pattern you’d like on the back of the info sheet and we’ll do the rest. Hamon Service prices are on the price list and are in addition to the heat treatment cost.
Carbon Steel blades are tempered once and Stainless Steel blades are tempered twice unless otherwise requested. Some carbon steels will automatically be treated (and charged for) as Stainless Steel due to their high alloy content and material specific heat treatment requirements, eg D2, D3, D6.
We do not have liquid nitrogen or dry ice cryogenic facilities. Stainless Steel blades are oil quenched and then cooled to -25 Celcius for a minimun of 1 hour and our hardening temperatures and times for Stainless Steel blades are optimised to give best results with this level of cooling. We feel that more severe cryogenic treatments for Stainless Steel are only really necessary for air or vacuum quench hardening processes that generate higher levels of retained austenite during the quench.
All blades are hardness tested on the tang and a test certificate will be sent with the blades. Testing will be prior to tang softening if this is requested. Certain steels such as VG10 and some San-Mai cannot be tested due to soft material on the outer layers.
It is important that you download our Heat Treatment Request Information Sheet (button above), complete it, sign it and include it with your blades. Heat Treatment WILL NOT be scheduled without it. When signing it you will also be agreeing that you have read and accept our terms and conditions which can be seen by clicking on the appropriate button.
If you have any concerns or queries please ring or email Graham but please first read our H/T FAQ’s by clicking on the button above.