Features: --Superior wear resistance --High hardness and mechanical strength --Good corrosion resistance --High precision for tolerance They're widely used in oil&gas, bearings, ball screws,valves and flow meters.pen,spraying machines,pump,machinery parts and other industries. Grade Density g/cm3 Hardness HRA(hv) T.R.S (M Pa) Performances & applications recommended YG6 14.9 89.5 2150 Good Wear resistance, used for hard wood,processing original wood,aluminum section bar,brass rod and cast iron. YG8 14.6 89 2320 Suitable for the roughening of cast iron and light alloys and also for the milling of cast iron and low-alloy steel. FAQ: Q1. Can I have a sample order ? A: Yes, we welcome sample order to test and check quality. Mixed samples are acceptable. Q2. What about the production time? A:Sample needs 3-5 days, mass production time needs 2-3 weeks for order quantity more than Q3. How do you ship the goods and how long does it take to arrive? A: We usually ship by DHL, UPS, FedEx or TNT. It usually takes 3-5 days to arrive. Airline and sea shipping also optional. Q4. How to proceed an order ? Firstly let us know your requirements or application. Secondly We quote according to your requirements or our suggestions. Thirdly customer confirms the samples and places deposit for formal order. Fourthly We arrange the production.