Home built Heat Treating Oven

[anthonyget]

One good thing is that my oven will never need to go as high as 1300C, Probably 900C max.

[anthonyget]

Johan, maybe you can help me with something. I know I bought the wrong thermocouple and I am waiting for the correct one to arrive.
But I set my oven to 600C and put an old file in there. When the oven got to 600C, I opened the oven and the file was bright red hot, and my infrared thermometer read 800C.
How can it be that wrong? Any thoughts?

[DanCom]

One good thing is that my oven will never need to go as high as 1300C, Probably 900C max.

I would recommend setting your sights on about 1100°C for a top end temp. Many popular cutlery stainless steels require a soak at or around 1060°C. 13C26, Elmax, 154CM, CPMS35VN etc.

[anthonyget]

I would recommend setting your sights on about 1100°C for a top end temp. Many popular cutlery stainless steels require a soak at or around 1060°C. 13C26, Elmax, 154CM, CPMS35VN etc.

Good point. My new thermocouple is good to 1200C