Impact test requirment of SA334 Gr.6 1

[teran]

Dear All,

When tube material is as belows, is this materail required impact test?

SA334 Gr.6==> O.D 25.4mm * Thick 2.769mm
SA334 Gr.6==> O.D 31.8mm * Thick 2.769mm

If required the impact test, Please let me know how to get the sub size of specimen.

Thanks,

 

[metengr]

teran;
Could you please provide more detail as to the application of these tubes? IS this for a heat exchanger, boiler, pressure vessel?

 

[AravindSujay]

Hi Teran, Impact test not only depends on the material, but also depends on the operating conditions like temperature. Pls provide more details.

Aravind Sujay

 

[SnTMan]

teran, grade 6 is CS tubing and is impact tested per the specification, and probably at -50 deg. F.

Regards,

Mike

 

[stanweld]

SA-334 Section 12.1 does not require impact testing of welded Grade 6 below 3 mm thick. Section 14.1 requires impact testing down to 2.5 mm thickness for seamless Grade 6. The impact test temperature is -50 F; no temp reduction is required. The above assumes that no thicker tube is available from the heat; in that case, please review 13.7.