maximum temperature use -304L -316L -316TI -321 and 309 1

[JUL74000]

Hi
Best wishes . Health, and happiness.

I want to know the maximum temperature use of the following stainless steel : -304L -316L -316TI -321 and 309

For mechanical components or sheets. The mechanical stresses are low. The expansion is not hindered.
Some components are welded.

Thank you in advance for your help and advises.

Julian

 

[metengr]

For use in a high temperature, air oxidizing environment with low stress (creep deformation not a structural concern because of low stress);

304L - 1500 deg F

316L - 1500 deg F

316 Ti - 1500 deg F

321 - 1500 deg F

309 - 1500 deg F

The above limits are based on information from ASME B&PV Code for maximum permitted service temperature.

 

[JUL74000]

Hi

I am surprised that the ASME gives the same limits for steels 321 and 309

Thank you very much Metengr.

Julian

 

[JUL74000]

Metengr, following your answer, I am wondering about the choice of material.

I have to design a basket that contains aluminum parts. After heating (1200 deg F), there is a quenching into a tank (glycol water at 200 deg F).

I thought using a 309.

On the web, I see a lot of manufacturers who use a basket of carbon steel (grade?). Not stainless steel.
It seems risky (welded structure).

Here I am a bit lost!

thank you

 

[metengr]

The 309 basket would provide greater life at higher cost in comparison to a carbon steel basket.

 

[arunmrao]

Steel baskets offer the advantage of ease of fabrication, easy availability of material and lowest cost. The downside being any contamination due to scale and distortion of parts . No harm in trying a few baskets in carbon steel.

 

[moltenmetal]

1200 F is awfully close to the melting point of aluminum, isn't it?

 

[JUL74000]

Hi
Sorry, 1020 F

 

[tbuelna]

JUL74000-

If you want to make a welded stainless steel basket, then your choices are probably limited to 304 or 316 stainless. 304 and 316 are the only stainless alloys wire screens are commonly produced in.