SA-266 GR.2 NOMINAL DESIGNATION

[chrysa1975]

SA-266 GR.2 is not included in ASME B16.34. However, please advise, if we needed to categorize it in a nominal designation just like in Table 1 of ASME B16.34, it could be C-Si or C-Mn-Si? What would be the P-T rating group that could match closer a flange made by this material?

 

[chrysa1975]

Ok, I conclude to use C-Si designation and 1.1 material group considering that it is the alternative of the SA105.
If someone can verify or amend, is welcome.

 

[Dhurjati Sen]

You cannot categorize that into any head as than it won't be as per ASME B 16.34.

Very difficult to place ASTM A 266 under any head, but C-Mn-Si would be more stringent.

DHURJATI SEN
Kolkata, India