Full Transcript:

What’s up guys?!?!? This is Michael with Michael Talks Metal back for more 300 series shenanigan’s! Today, our video topic is an austenitic stainless steel for severe corrosion environments, 317!

Type 317 and its low carbon variation 317L are austenitic stainless steels. With higher Chromium, Molybdenum and Nickel content than 316, it has both increased corrosion performance and higher temperature applications. It has greater resistance to both pitting and crevice corrosion in most environments. Think of it as type 316 on steroids. The solution annealed  condition aka Cond A  offers the best corrosion performance.  Typical solution anneal is from  1850 to 2050 deg F followed by rapid cooling to prevent carbide formation.

Is 317 Magnetic? 317 and 317L are  considered non – magnetic in the annealed condition.

317          SAE 30317     UNS S31700

317L         SAE 30317L    UNS S31703

Density:      point 29 lbs per cubic inch

Mean Coefficient of Thermal Expansion from 32 -212 deg F:

8.8 microinch per inch per deg F

Machinability rating: 45 %   (of 1212)

Chemical Composition

Carbon            0.08 % Max *

Manganese      2.00 % Max

Silicon              1.00 % Max

Phosphorus      0.045 % Max

Sulfur                0.030 % Max

Chromium        18.00 – 20.00 %

Nickel               11.00 – 15.00 %

Molybdenum     3.00 – 4.00 %

* .030 for 317L

Typical  minimum mechanical properties for 317 in the annealed condition:

Yield Strength                30,000 psi

Tensile Strength             75,000 psi

Elongation                       40 %

Reduction of Area            55 %

The applicable ASTM and ASME standards for this type are too numerous to detail here.

Refer to our website for more information and videos on stainless steels

Additional specifications and part requirements can alter what we have shown you here today. Don’t forget to CHECK THE SPECS !!!!!!!!!!! Now, next week is one of the off weeks for Michael Talks Metal, I will be back for the last Thursday of March, 3/31. See you then and don’t forget Michlin Metals is a distributor and supplier of 317 stainless steel so check the website www.michlinmetals.com for more info. If you made it this far and haven’t subscribed, click here. If you missed last week’s video, click here. Thanks for watching, see you on the day before April Fools and that’s no joke!