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Dear Israelkk, in the previous post Mr. KENAT suggested me posting my question here in order to find larger audience of mech engineers. That is why I reasked my question here! Dear btrueblood, The condition that you described is the case where the heat flows from the inner side to the outer...

Hi friends, I have a cylinder with inner dia 40mm, and outer 100mm. A piston has to slide in the cylinder to inject a molten metal in 600 centigrade degree. Both of the parts are made from H13 tool steel. I was considering about using H7/g6 tolerance between two parts. But the problem is that...

Hi friends, I have a cylinder and a piston made of H13 tool steel. The working temperature for these parts is above 600C. The piston has to slide in the cylinder on those elevated temperatures. I would like to know whether it is possible to achieve a microstructure in H13 steel that the parts do...

I would suggest you to have a look at "ASM Specialty Handbook Heat-Resistant Materials". Of coures as Ron suggested you should coat you base metal with a ceramic coating. TaC, HfC, TiC or WC are good candidates to have a look at.

Dear Friends, Thank you for your useful tips. I have already analyzed the two parts using ABAQUS (FEA software). Since the material used for the parts are the same (both H13 tool steel), the analysis shows no or a little change in tolerances between two parts in elevated temperatures. But in...

Hi friends, I have question about the effect of temperature change on the standard tolerances. I have a cylinder with inner dia 40mm, and outer 100mm. A piston has to slide in the cylinder to inject a molten metal in 600 centigrade degree. Both of the parts are made from H13 tool steel. I was...