Please review my water quench plan 10

[knowlittle]

What is the practicality of heating the following clevis to 1500 F (815 C) and dropping it into a water bucket?

Dimension: 3"x3"x8" (75x75x200 cm)
Weight: 16 pounds (7.5 kg)
Material: 4340

Please don't ask why not oil quench. My buddy is all set to try water quench first unless there are compelling reasons not to. Thanks.

 

[dbooker630]

4340 steel can be quenched in polymer, typically between 15-25% concentration in water. Tenaxol, Houghton and Park/Heatbath are suppliers of raw polymer. You need to have sufficient agitation and the temperature should be 95-110 deg F. I would set the concentration and temperature toward the high side if there is concern about distortion and/or cracking.

 

[knowlittle]

Thank you. I will contact the vendors and get some for a small scale quenching operation. I will report back to you folks when we are done. Thanks again.