Re: [MW:30153] What is full form of SA in SA516

Dear All,

Adding to Rameshkannan Devaraj's explanation, please note:

'SA' is a prefix of the ASME specification, whereas 'A' is prefix from ASTM. 

The ASME SA516 is a part of the ASME Boiler and Pressure Vessel Code (BPVC),

 a standard which governs the use of carbon steel in weldable industrial boilers and pressure vessels. 

Material specifications for SA materials can be found In Section II Part A.  

Further, for the non-ferrous material the prefix 'SB' is used which can be found in Section II Part B.  

Hope this clarifies  your query.  

Thanks & regards

Ashok Rai

On Tue, Oct 15, 2019 at 4:19 PM Ramesh <rameshkannandevaraj@gmail.com> wrote:

"A" is an ASTM designation for materials indicating that the iron content is 50% or more (ferrous material). If the iron content is less than 50%, the next abundant element would determine the alloy type (and the specification generally would start with the letter B).

If an ASTM material specification has been adopted by ASME, an "S" is added to the designation.

The SA (SA-516) means it is a ferrous material specification from ASTM, that has been adopted for Code use by ASME. 

source : AWS.org

Dont look for exact expansion for S & A, like S means Steel and  A means Authority. 

Thanks and Regards

Rameshkannan Devaraj

"What you have learned is a mere handful; What you haven't learned is the size of the world – Avvaiyar"

On Tue, Oct 15, 2019 at 10:35 AM Kamal Basha <basha2070@gmail.com> wrote:

A means ferrous, iam correct friends

On Mon, 14 Oct 2019, 1:44 p.m. Aakash, <harenathjha@gmail.com> wrote:

Like Astm it's starts with A.
Please reply ?

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