Heat treat of blades includes (for stainless \/ air quench) double foil wrap\u00a0 – harden in computer controlled kilns – plate quench – cryo in liquid nitrogen – multiple temper as appropriate – and hardness testing.\u00a0 For tool or carbon steels, coat in antiscale – harden in computer controlled kilns – quench in oil – double temper and hardness test.<\/p>\n
Note that some blades warp.\u00a0 We take measures to mitigate this, but it is the makers responsibility to straighten them.\u00a0 The longer and thinner a blade is, the more likely it is to warp.\u00a0 Many makers choose to just profile their blades and drill handle holes before heat treat – and grind the bevels once hardened.\u00a0 This also mitigates warping but care must be taken to keep the blade cool when grinding so as not to ruin the temper.<\/p>\n
If you want a hardness near the high end of what’s possible, We’d prefer you send your blades elsewhere.\u00a0 We just don’t want to be associated with blade failures.\u00a0 Most steels<\/em> we’re happiest with 59 – 61. Maybe 62 if it isn’t going to be abused.\u00a0 Call if in doubt.<\/p>\n Hardness is tested on flat parallel surfaces – usually the tang where the indent won’t show.\u00a0 Burrs or even engraving will result in false readings.<\/p>\n PLEASE package well when shipping. Aside from damage to your blades Canada Post gets extremely upset when blade tips penetrate the package.\u00a0 .\u00a0 They may seize the package as dangerous, or it may be just returned to sender.\u00a0 Also, please don’t sharpen your blades.\u00a0 Can damage your edge and our fingers.<\/p>\n","protected":false},"excerpt":{"rendered":" Heat Treat Blade 8 – 12 inches total.\u00a0 Please read detailed description.<\/p>\n","protected":false},"featured_media":22,"template":"","meta":[],"product_brand":[],"product_cat":[15],"product_tag":[],"class_list":{"0":"post-19","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-uncategorized","8":"first","9":"instock","10":"taxable","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/heattreat.ca\/index.php\/wp-json\/wp\/v2\/product\/19","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/heattreat.ca\/index.php\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/heattreat.ca\/index.php\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/heattreat.ca\/index.php\/wp-json\/wp\/v2\/media\/22"}],"wp:attachment":[{"href":"https:\/\/heattreat.ca\/index.php\/wp-json\/wp\/v2\/media?parent=19"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/heattreat.ca\/index.php\/wp-json\/wp\/v2\/product_brand?post=19"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/heattreat.ca\/index.php\/wp-json\/wp\/v2\/product_cat?post=19"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/heattreat.ca\/index.php\/wp-json\/wp\/v2\/product_tag?post=19"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}