DN 80 Carbon steel pipe

[Kadir godil]

Dear Experts,

I have a 80 mm dia pipe. I have done its wet chemical analysis according to IS228. The result shows as below,

C - 0.06

Si - 0.55

Mn - 0.45

P - 0.024

S - 0.023

I checked standard IS 1239. As per this standard, the chemical composition should be (all max), C - 0.2, Mn - 1.3, S&P - 0.04%.

My question is, can I say my pipe is IS 1239 pipe?

Please suggest what grade is my pipe?

Thank you.

Sincerely,

Abdulkadar

[prem_nautiyal26]

Hi

Unless you carry out chemical and mechanical testing how you can certify any material ?

Why don't you ask the lab which has done the chemical analysis to confirm the material grade composition please ?

Regards

Prem Nautiyal

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[Alan Denney]

Since the specification figures are maxima then the material complies with the requirements of the standard. However has it been manufactured to ALL the requirements of the standard? Are you re-certificating material manufactured by others, or doing a check on what has been supplied with a manufacturer’s certificate stating compliance with that standard? Be very careful if re-certificating material.

 

 

Alan Denney

AKD Materials Consulting Ltd

 

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[Jim Price]

If you have the material Certificate of Compliance from the mill yes.

If you want to verify the material then this should be for your information only.

Be very careful trying to recertify material.

By doing so you could be assuming liability.

 

Best Regard,

 

Jim Price | Welding Engineer, CWI

Direct:  320.7463439 |

jimp...@polarcorp.com

 

 

 

 

 

From: material...@googlegroups.com [mailto:material...@googlegroups.com] On Behalf Of Kadir godil
Sent: Tuesday, September 01, 2015 3:55 AM
To: Materials & Welding
Subject: [MW:23378] DN 80 Carbon steel pipe

 

Dear Experts,

--

[Kadir godil]

Thank you Alan, Jim & Prem,

It was a long ago used pipe. corroded so was examining it.  as a part of it, i analyzed the chemical composition. I was wondering, in IS 1239 there is no Si specification and this analysis shows it has Si content. That is why I was confused what grade should I call him.

thank you.

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