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)
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!