SA 106 Gr B and ASTM A106 Gr B

[hakr5]

Dear All

Can you please explain the difference between the material grades SA 106 Gr B and ASTM A 106 Gr B.

[deepak_vizag]

Both are same. One is short form of the other.

[ify09]

hark5

this question confuses all.

remember there are two organisation ASME and ASTM, i hope you might know acronym.

ASME generates codes so the material that fulfill the criteria of ASME and tested by ASTM has prefix S, that in the case of SA106 gr. B
in ASTM standard u will find it as A106 gr. B but in
ASME u will find it as SA106 gr.B

[hakr5]

Thanks.....

But in the ASME code itself they have used both notations. For eg. in ASME Section IX, please go through table QW/QB-422, the SA notations are given a P no. and associated Group no, whereas the A notations are given an S no and associated Group no (unassigned material according to ASME). i'm totally confused.....

[tungping_pan]

Hi friend,

The SA-106 is identical with ASTM A 106-95 except for editorial differences in 8.1, 13.4, and 24.1 and the deletion of ASTM caveat 1.5.

Please refer to attachment for 'SA-106 SPECIFICATION FOR SEAMLESS CARBON STEEL PIPE FOR HIGH-TEMPERATURE SERVICE'

[hakr5]

Thanks very much for your valuable reply.....

[ashfaqanwer]

Those materials of ASTM acquired by ASME pressure vessel code committee to be used in their applications have been assigned S in addition to A-106 like SA-106. Many of the materials which are not acquired by ASME pressure vessel and boiler code committee do not have S as a prefix.

See also

[link Point to another website Only the registered members can access]
Hope this would make you more clear.

Regards,
Ashfaq Anwer

[link Point to another website Only the registered members can access]

[sharmilasu]

You may find this attachment helpful to understand difference between A106 & SA106 and how to use A106 materials for ASME Code work.

[jeffry mamahit]

dear friend,

what is difference A106 Gr vs API 5L Gr B

[ashfaqanwer]

Jeffry,
There are differences between API 5L specification pipe and A106 pipe but what I have seen and practiced is both are carbon steel pipes and can normally be used interchangeably also. However, do consider that API 5L Gr. B has 60 ksi Tensile Strength whereas A106 Gr. B has 80 ksi of Tensile Strength.
A106 Gr. B is normally recommended and used for hot services.

Regards,
Ashfaq Anwer

[link Point to another website Only the registered members can access]

[jeffry mamahit]

thanks friend

[servidor]

Somebody can pass the astm a106 gr. C gracias