Which grade of steel required to make gears. The material chosen really depends upon the load and usage. Given that the load is not generally severe  in a home type application such as this where the size may be physically driven rather than detail design based upon mechanical characteristics I would not get too wound up on the material. Whichever option you go for in the commonly available materials EN3. A EN9 there are pros and cons. EN3. A is a low carbon about 8. EN8 will wear in, easy to machine. EN56 Medium carbon about 9. EN8. EN8 old choice for gears can suffer fatigue. EN9 Medium carbon equal to EN8 less fatigue cracking. I would expect the load to be low, so any of the above should be suitable however if you plan to heat treat then EN8 or 9 via induction hardening, EN3. Clone Trooper Armor Pepakura Files. There are some advantages to the lowmed carbon as these will wear in if you are cutting with home made cutters on a small mill i. Just my thoughts. Harrison L5 Lathe Manual Chuck Manufacturers' title='Harrison L5 Lathe Manual Chuck Manufacturers' />Top VIdeos. Warning Invalid argument supplied for foreach in srvusersserverpilotappsjujaitalypublicindex. Lathes. co. uk Home Page Machine Tools For Sale Wanted Wood Lathes for Sale Lathe Buying Advice The Lathe Parts Identification Instruction Books Manuals. Sitemap Steam Engines for Sale Incorporating Railway, Stationary Steam, Boats, Clocks, Tools and otheer Modelling Hobbies. Harrison L5 Lathe Manual Chuck TorqueExpress Helpline Get answer of your question fast from real experts. Lathes. co. uk home page Machine Tools For Sale Wanted Wood Machinery For sale Wanted Lathe Buying Advice The Lathe Parts Identification.