What’s up guys?!?! This is Michael with Michael Talks Metal back for a little metal mashup. Today, our video is another common stainless steel found in specifications for aerospace applications.
Type 316 and its low carbon variation 316L are austenitic stainless steels.
Another of the broadly defined “18-8” stainless steels, it is most often used in the solution annealed condition….. aka Cond A. Typical solution anneal is from 1850 to 2050 deg F followed by rapid cooling to prevent carbide formation.
The higher Nickel and the addition of Molybdenum allow this type to be used at higher temperatures or more corrosive environments than type 304.
316 and 316L are considered non – magnetic in the annealed condition.
316 SAE 30316 UNS S31600
316L SAE 30316L UNS S31603
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: 42 % (of 1212)
Carbon 0.08 % Max *
Manganese 2.00 % Max
Silicon 1.00 % Max
Phosphorus 0.04 % Max
Sulfur 0.03 % Min
Chromium 16.00 – 18.00 %
Nickel 10.00 – 14.00 %
Molybdenum 2.00 – 3.00 %
Copper 1.00% Max
* .030 for 316L
Typical minimum mechanical properties for 316 in the annealed condition:
Yield Strength 30,000 psi
Tensile Strength 75,000 psi
Elongation 40 %
Reduction of Area 55 %
Aerospace specifications for solution annealed condition:
AMS 5648: Bars, Forgings, Mechanical Tubing, and Rings – 316
AMS 5573 Seamless Tubing – 316
AMS 5524: Sheet, Strip and Plate – 316
AMS-S-7720 Bars, Wire, and Forgings – 316
AMS 5653: Bars, Forgings, Mechanical Tubing and Rings – 316L
AMS 5507: Sheet, Strip, and Plate – 316L
AMS-QQ-S-763 Bars, Shapes, and Forgings – 316 and 316L
The ASTM and ASME standards for commercial applications 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. SO CHECK THE SPECS !!!!!!!!!!! Michlin Metals is a distributor and supplier of stainless steel grade 316 so check out the website for more info. For last week’s video click here. If you made it this far and haven’t subscribed please consider doing so now. Thanks for watching, this is Michael with Michael Talks Metal, see you next Thursday 10am, I’m OUT!