SA 106 GR.B - killed steel information missing

[ElCidCampeador]

Hi,
for ASME II PART.A SA 106 gr.B steel shall be killed (see par. 4.1). I have some certificates where this is clearly written; in other ones, this information is missing. Why? Is a note like "material acc. to ASME II PART.A" enough to avoid writing it? Or is it necessary to write it on MTR?

Thanks

 

[metengr]

No, it is not necessary to repeat the obvious. Look at the chemical analysis results on the certificate and if silicon is present or even aluminum and silicon, the steel is fully killed.

 

[JStephen]

We have had to contact mills in the past to ask stuff like this- I think ALL their steel was killed- so it wasn't on the report.

 

[Don56]

AS you point out paragraph 4.1 in SA-106 states that the steel shall be killed. Ergo to be certified as SA-106 it must be killed.

 

[weldstan]

A-106 requires a minimum Si content of 0.10% which is considered Killed. While I would prefer a minimum of 0.12%, this requirement for killed steel has been a fact for decades. You will most likely find the Si content to be > 0.15% on your mill cert.

 

[GenB]

To satisfy the ASME Code you must state how, Si or ALU. A simple receivig statement based on the MTR's Chem report.

General Blr. CA,USA

 

[alexwanglr]

According to ASME Code Section VIII Div 1, it doesn't mandatory for the MTR for the pipe? Marking is enough for it.

 

[GenB]

ASME Code Sect II part A requirements must be met

General Blr. CA,USA