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sabapara
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Join Date: Aug 2009
Posts: 14
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SS 316 & SS 316L

09/19/2009 12:27 AM

Dear all,

Please tell me Which one is most suitable for welding? and Why?

SS 316 or SS 316L

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 Viral Patel
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lyn
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#1

Re: SS 316 & SS 316L

09/19/2009 12:38 AM

Not much difference, except 316L has less carbon for enhanced corrosion resistance.

Weld away!
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sabapara
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#2
In reply to #1

Re: SS 316 & SS 316L

09/19/2009 12:43 AM

I want to know for small vessel whichone is better becos welding is done for fabrication of same.

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lyn
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#3
In reply to #2

Re: SS 316 & SS 316L

09/19/2009 12:51 AM

What will the small vessel contain? What size is small?

316L is more expensive, last I knew.
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durai
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Join Date: Aug 2009
Posts: 2
#4

Re: SS 316 & SS 316L

09/19/2009 2:10 PM

Both are suitable for welding, refer your project or client spec for requirements

SS316L low carbon content, which is mostly prefering compare to SS316.
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Ed Weldon
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#5
In reply to #4

Re: SS 316 & SS 316L

09/19/2009 11:00 PM

Use 316L if welding and you want to preserve corrosion resistance and strength. Following link has good simple answers:

http://www.finishing.com/143/56.shtml

Ed Weldon
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SRIDHAR
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Join Date: Nov 2006
Location: Chennai - India.
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#6
In reply to #5

Re: SS 316 & SS 316L

09/20/2009 3:09 AM

You can use both materials depending upon your client's design and end use applications.

Both are easily weldable. But use only E 316L (or) ER 316L type consumables while welding AISI 316L type base metals as they are immune to carbide precipitation in the sensitizing temperature range of 425 -870 deg C.

316L type of materials are recommended for service temp. below 425deg C.

Use moderate current conditions in both cases. Sridhar.

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strider6
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#7

Re: SS 316 & SS 316L

09/21/2009 2:50 AM

316L. The L means that this SS has a lower Carbon Content, max 0.03% vs the 0.08 of the SS 316. This lower content means that 316L has a much lower sensitivity to Sensitization, precipitation of Chromium Carbide during welding, vs the "normal" 316. Sensitization reduces the corrosion resistance of the SS when in contact with an aggressive environment. You can "restore" the corrosion resistance of a sensitized SS with a full solution annealing - that means heating to 1050°C and rapid cooling. You can use the SS316 if it will not be used in an aggressive environment or if you can anneal it.

s

corrosion protection & control
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MSsteel1
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Join Date: May 2008
Posts: 52
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#8

Re: SS 316 & SS 316L

09/21/2009 8:37 AM

The L is for low carbon to enhance welding. However do not pay more for it. Most stainlesses are now dual certified. If you are being offered 316 ask for the test report and carbon content
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Abdel Halim Galala
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Engineering Fields - Piping Design Engineering - New Member Egypt - Member - Member since 02/18/2007

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#9

Re: SS 316 & SS 316L

09/21/2009 1:36 PM

Very important conclusion:

• Use the standard austenitic alloys 316 whenever the part will not be welded or can be solution annealed after welding.

• Use the low carbon versions 316L for parts that will be welded and cannot be solution annealed after welding.

• For some detailed informations, see the following Comparison_of_316_and_316L.

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Anonymous Poster
#10

Re: SS 316 & SS 316L

10/23/2009 12:39 AM

Hi Dude

SS316L is most suitable for welding due to less carbon content than SS316.
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isamiche14
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#11

Re: SS 316 & SS 316L

11/08/2009 10:25 AM

I need to do food grilling grills 1 / 8 in diameter would use the material, which is the most appropriate and least expensive stainless

thanks
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SRIDHAR
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Location: Chennai - India.
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#12
In reply to #11

Re: SS 316 & SS 316L

11/09/2009 12:02 AM

You can use

A 276 TP 410 (straight chrome steel, economical and but may corrode if it s not properly

maintained)

A 276 TP 304 (fully austenite steel no problem what so ever, durable for long time)

SA 479 302 (fully austenite steel no problem what so ever, durable for long time)

SA 479 304 (fully austenite steel no problem what so ever, durable for long time) etc.

They are available in rods / bars can be welded if required. You can choose the material depending upon its availability and cost factor. You can 316 , 304L, type also but they will be expensive.

Sridhar.

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Users who posted comments:

Abdel Halim Galala (1); Anonymous Poster (1); durai (1); Ed Weldon (1); isamiche14 (1); lyn (2); MSsteel1 (1); sabapara (1); SRIDHAR (2); strider6 (1)

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