PDA

View Full Version : What kind of steel?



Al Messer
10-24-2002, 08:36 PM
Anyone have any idea as to what kind of steel is used to make hydraulic rams such as is found on garbage trucks? I've been given some scraps, and after you get through the chrome plating, it machines very well and machines to a beautiful finish. Must have some Chrome in the alloy as it resists rust much better that CRS.

Philt
10-24-2002, 09:41 PM
Seems I have read that 1045 TGP is used for that purpose. 1045 doesn't have any chrome, but, I guess the plating is enough to prevent surface rust.

Al Messer
10-25-2002, 05:25 PM
After the plating is machined away, the remaining metal has strong rust resistant characteristics.

hobbycraft
10-25-2002, 06:29 PM
I have a friend who works in a hydralic repair/ build shop. They use alot of molybolideuim ( I may be off on spelling). The piece I have will not cut with a hand hack saw. Oh, it is shiny and pretty like chrome. If you want to know more I will ask him questions for you. Let me know. Paul

spope14
10-25-2002, 08:14 PM
Try 4150. Lots of feed and speed on the cuts. 4140 and 4150 are the general materials for automotive applications due to the molybedenum for toughness, and the chrome for corrosion resistance. add the carbon for a good hardening, and this is why.