4130 not thru hardening ?

[???]

Good heat treat companies are like doctor's, mechanics and anodisers. If you find a good one you are extremely lucky and you should treat them nicely.

 

[EmGo]

Good heat treat companies are like doctor's, mechanics and anodisers. If you find a good one you are extremely lucky and you should treat them nicely.

Have had two .... one that was like In the Halls of the Mountain King, bubbling pits of poisonous fuming arsenic mud in the floors, squinty-eyed cackling gnome running the place, did the best carburizing ever. They shut it down.

They other place was clean and well-lighted and nice modern equipment, good guys, good work, he recently closed and planned to rent the building to a marijuana grow company. Not enough work left in the area.

Reshoring, yeah. That's gonna happen any day now.

 

[memphisjed]

They should take initial cost off redoing. That is fair- especially since you gave instructions on how to, not what you wanted. Brine is what I was taught to use on 41xx.