Re: [MW:4687] Difference between pipes and tubes

Pipes----- Mass Transfer only(generally---ID controlled)

Tubes----- Mass And Heat Transfer ( generally--od and thick is controlled)

do not use STT for hot and fill pass

KGP

On Sat, Apr 3, 2010 at 3:06 PM, Gulam kader <armvasi@gmail.com> wrote:

Hai all,

1.Please somebody can explain difference between pipes and tubes with some references.

2. In our project continuously getting repair ( Cold lap) in hot and fill pass. can u suggest some good way to avoid or rectify this.

material Used - CS dia 68,64 and 60"

Process : Root - STT, Other - FCAW shielding by gas ( Ar80%, CO2 20%- 48 CFH)

Filler metal for FCAW : A5.20 E71T-9M

Expecting reply as soon as possible.

Regards,

Meera

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