Re: [MW:14159] API 650 IMPACT TEST REQUIREMENT.

Dear Mr.Vino,

 

The requirement of Mr.Manoj john was related with the API 650 Tanks, offcourse temperature of -29 Deg Cent shall be considered and is very important for piping / Pipe line also.

 

Please refer to the fig: 2-1—Minimum Permissible Design Metal Temperature for Materials Used in Tank Shells

Without Impact Testing

Regards,

 

 

On Tue, Apr 24, 2012 at 5:16 PM, Vino Varghese <vinopvarghese@gmail.com> wrote:

Dear Sir,

 

I was in an impression that the impact requirement is governed by Temperature, like - 29 Degree C below... but how does thickness affects the Impact Test?

 

Can you please through more light for the requirement of Impact Test based on thickness criteria?

 

Thanks & Regards

Vino-Doha

 

On Tue, Apr 24, 2012 at 2:16 PM, narasimha murthy <jnm71269@gmail.com> wrote:

 

As per API 650

2.2.1.4

Shell plates are limited to a maximum thickness of

45 mm (1.75 in.) unless a lesser thickness is stated in this

standard or in the plate specification. Plates used as inserts or

flanges may be thicker than 45 mm (1.75 in.). Plates thicker

than 40 mm (1.5 in.) shall be normalized or quench tempered,

killed, made to fine-grain practice, and impact tested.

Regards,

 

J.N.Murthy

 

On Fri, Apr 20, 2012 at 8:59 PM, manoj john <manojacgnr@gmail.com> wrote:

Dear All,

Can anyone give information for the impact test requirement as per API 650 for carbon steel plate thickness for atmospheric storage tank.

Thanks & Regards.

Manoj 

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