Alloy ores - Import export

Alloy 17-4 PH is a chromium-copper precipitation hardening martensitic stainless steel with Cu and Nb/Cb additions. 17-4PH Stainless Steel combines high strength, hardness (up to 572°F / 300°C), and moderate corrosion resistance. Alloy 17-4 PH withstands corrosive attacks better than any of the standard hardenable stainless steels and is comparable to Alloy 304 in most media. The alloy is subject to crevice or pitting attack if exposed to stagnant seawater for any length of time, although it is corrosion resistant in some chemical, petroleum, paper, dairy and food processing industries(equivalent to 304L grade). Mechanical properties can be improved (high strength and superior corrosion resistance) when precipitation hardened from Condition A to one of the Condition H tempers. We supply 17-4 PH in the H1150D condition. This is double aged at a temperature between 1140° F and 1160° F for 3.75 hours to 4.

Our granulator knife sharpening service is provided from Fernite’s ISO 9001 certified factory in Sheffield. Our professional and experienced knife sharpening experts look after your knives as they would if they were sharpening a brand new knife. We recommend sending your granulator knives to us as a complete set, so we ensure that the knives tolerances required by the granulator manufacturer are maintained. Please let us know what type of material you are processing, as thinner materials often require tighter blade tolerances. We have the capacity to sharpen blades of up to 6 metres. We are using less rigid porous grinding abrasives for minimal-loading and cool surface sharpening. Therefore, your knife doesn’t produce overheat and doesn’t become more brittle as a result. Correct equipment for sharpening either Carbon, Alloy, or even Tungsten Tipped granulator knife. On custom request, a Granulator Knife can be finish ground to profile.