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RE: [MW:10047] Corten & carbon Steel weldability

By Materials & Welding
Mr. Zakaria,
 
Attached are some information on Corten Steel/Weathering Steel which would be of help to you. This steel is a micro alloyed, typically added with Copper (major) and other alloying elements, such as Nickel to improve atmospheric corrosion resistance.
 
ASTM A-588 is one of the specifications which cover such (weathering) steel. See the attached data sheets for  further references.
 
Corten is quite weldable, with the required precautions to be adopted as per manufacturers guidelines.
 
AWS SFA 5.5 covers the required specs for welding electrodes,recommended electrodes are E-7018W for Corten A, E-8018W for Corten-B steel.See the atatched data sheet of a popular electrode manufacturer in North America, Air Liquide.
 
ASME Sec-IX  includes weathering steel, under specification A-588. These steels have S-Nos but do not have any P No.Welding procedure qualification on these ASTM specification specific. PQR  qualified for  these steels apply for welding these grades or to others. It's advisable to use welding electrodes matching the Corten chemistry for welding dissimilar materials.
 
What's  grade or specification of corten to be fabricated. If you specify more details , perhaps may get more appropriate guidelines.
 
Thanks.
 
 
Pradip Goswami,P.Eng.IWE
Welding & Metallurgical Specialist & Consultant
Ontario,Canada.
Email-pgoswami@sympatico.ca,
 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of muthusrinivasan muthuselvam
Sent: Thursday, February 24, 2011 1:30 AM
To: materials-welding@googlegroups.com
Subject: Re: [MW:10007] Corten & carbon Steel weldability

Carton steel is microalloyed carbon steel material mainly used for weathering action.. basically this material is developed for special application... in India equvalent material is IRSM 41-- If you check the chemistry and mechanical in internet you will get it..

On Sat, Feb 19, 2011 at 12:33 PM, k.ilangkumaran ilangkumaran <k.ilangkumaran@yahoo.com> wrote:
Dear MSMS,
 
               E7018 W? How? could you please explain us? because the material is unassigned as mentioned so we dont know what chemical composition and tensile strength is? some standards para if possible please?
 
Ilan

--- On Fri, 2/18/11, muthusrinivasan muthuselvam <msms2k@gmail.com> wrote:

From: muthusrinivasan muthuselvam <msms2k@gmail.com>
Subject: Re: [MW:9922] Corten & carbon Steel weldability

To: materials-welding@googlegroups.com
Date: Friday, February 18, 2011, 3:32 PM


Dear Mr.Zakaria..
 
Corten is unspecified material as per ASME... you can say that as unassigned and preferred electrode is E 7018 W -made to order.
 
I hope this is for chimney or some container..
 
br,
 
msms

On Thu, Feb 17, 2011 at 9:14 PM, Zakaria ghrab <zakaria.ghrab@gmail.com> wrote:
Hi all,

  I need to know the P number of corten steels, i have on PQR according ASME sect IX corten to corten, i need to use it to prepare WPS for Carbon steels but i have doute Corten is PN°1 or PN°3, serashing in internet : Equivalent Corten is ASTM SA 242, is it true?
--
GHRAB Zakaria
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