A 333 Gr 6 to use for low temperature

[prashant pansare]

Dear All, 

Which element makes A 333 Gr 6 to use for low temperature condition.

Regds, 

--

Prashant  Pansare
(IRS - Mumbai)

[kishor kaku]

Manganese!

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[Kaushik bhagvandas patel]

Dear All,

Main Chemical Contain is Carbon and Magenis ratio is required. is perticulur given standard ratio.

Kaushik PAtel

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[prashant pansare]

Dear Sir,

As you said Manganese, but in A 106 Gr B also manganese is present.

-- 

Prashant  Pansare

(IRS - Mumbai) 

[Dindo]

It has to be impact tested @ -50 F to be classified as SA333 Gr.6. MTR would have to show the results.

[Nandesh Kumar]

In ASTM A 333 Gr 6, unwanted materials like vanadium, Niobium, Copper, cobalt etc are not present, whether intentionally or unintentionally added. Moreover compared to other grades it is fine grain steel and (I think) bit cheap compared to 333 Grade 1 ( only Gr 1 and 6 follow strict chemical composition) Above said is my small analysis to my limited knowledge. Respectfully, Nandesh Kumar A --- On Thu, 4/10/12, prashant pansare <prashan...@gmail.com> wrote:

[ahm...@yahoo.com]

It is heat treatment during manufacturing, which makes A333 suitabe for low temperature. sent from mobil phone

-----Original Message-----
From: Dindo
Sent: 04/10/2012, 6:30 pm
To: material...@googlegroups.com
Subject: Re: [MW:15478] A 333 Gr 6 to use for low temperature


It has to be impact tested @ -50 F to be classified as SA333 Gr.6. MTR
would have to show the results.

On Thu, Oct 4, 2012 at 8:39 AM, prashant pansare

[Saravanan Sornam]

Hi,

 

Nickel gives good Toughness , especially for Low Tempr.

 

Check your Mill Sheet for A333 Gr. 6 for Nickel Value and compare to normal A 106 Gr. B.

 

Regards,

Sarav

[hemant]

Mr ahmraha is right. It is heat treatment process and durinh this process
for LTCS DBTT(ductile to brittleness transfer temp.) point reduce down then
this material called LTCS.

[sudhakar kuppuswamy]

Dear Prashant, 

 

If you compare Low temperature Carbon steel i.e A 333 Gr 6 with High

temperature Carbon steel i.e A 106 Gr B, there is no major difference in

chemical composition. 

 

The difference is grain size. A 333 is fine grain steel, where as A 106 is coarse grain steel.

 

Fine grain in LTCS is achieved by Combination of heat treatment during pipe manufacturing process .refer ASME Sec 2 Part A, A 333 for heat process used.

 

Fine grain steel posses good impact properties when compared to coarse grain steel.

Only this makes the difference between A 333 and A 106 pipe

 

With regards,

Sudhakar.K