Base Metal

[Norberto Barbosa]

Hi, everybody
Is there someone who knows this kind of Base Material "S-355 J2 G3", regarding;
1)Similarity with ASTM;
2) Quimical Composition
3) and if possible an adequate electrode with its AWS classification and specification to weld this material.
I'll be glad.

Regardings,
Norberto de Souza Barbosa - Brazil
 

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[GERING, Erwin]

Hello Norberto,

 

Normalised C – Mn steel.

Requirements reg charpy values can be till  @ -40 degr.

Welding with E 7018 or E7018-1 like

TENACITO R or SUPERCITO 7018S

http://www.alw-tool.com/WPC/oerlikon/MA/EN/index.php  

 

 

Met vriendelijke groet, with kind regards,

mit freundlichem Grüss, Salutations,

 

Ing. Erwin GERING, IWE

Product Manager Welding Consumables

 

[Chandra, Vasanthan (Lagos)]

Hi,

 

The attached chart will give you guidance as per your need.

 

Regards,

Vasanth

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[vipin george]

Hi!Noberto,

This is Normalised steel basically for Offshore structures in North sea climatic conditions
S355 J2 means 355 N/mm Sq yield strength , J2 means Impact @ -20 degrees C Avg.Impact value is 27 Joules
S355 K2 G3 means 355 N/mm Sq yield strength , K2 means Impact @ -20 degrees C Avg.Impact value is 40 Joules, G3 means Normalised Killed steel
Check dnv.com, Download this code free:DNV-OS-C401 (Mettalic materials)
SMAW process: E7018 & E7018-1
GMAW process: ER 70S-6
FCAW process: E 71T-1C/ E71T-9C

Thanks & Regards,
vipin george

[Stefano Giorgio]

For S355 J2 see EN 10025 Part 2 , for this steel Charpy test are carried out at -20°C, delivery condition may be as-rolled or normalised


For S355 G3 see EN 10225 , G3 means that it is a plate with charpy tests at -40°C, delivery condition may be normalised or thermomechanically rolled

They are both C-Mn steels for structural application , S355 j2 is more common while S355 G3 is specifically used for offshore structure or when specific requirements on toughness and weldability are required

Regards


Giorgio Stefano


-----Messaggio originale-----
Da: material...@googlegroups.com [mailto:material...@googlegroups.com] Per conto di vipin george
Inviato: sabato 26 settembre 2009 16.53
A: material...@googlegroups.com
Oggetto: [MW:3331] Re: Base Metal

Hi!Noberto,

This is Normalised steel basically for Offshore structures in North sea climatic conditions
S355 J2 means 355 N/mm Sq yield strength , J2 means Impact @ -20 degrees C Avg.Impact value is 27 Joules
S355 K2 G3 means 355 N/mm Sq yield strength , K2 means Impact @ -20 degrees C Avg.Impact value is 40 Joules, G3 means Normalised Killed steel
Check dnv.com, Download this code free:DNV-OS-C401 (Mettalic materials)
SMAW process: E7018 & E7018-1
GMAW process: ER 70S-6
FCAW process: E 71T-1C/ E71T-9C

Thanks & Regards,
vipin george

On Fri, Sep 25, 2009 at 3:10 PM, Norberto Barbosa <norbe...@hotmail.com> wrote:


Hi, everybody
Is there someone who knows this kind of Base Material "S-355 J2 G3", regarding;
1)Similarity with ASTM;
2) Quimical Composition
3) and if possible an adequate electrode with its AWS classification and specification to weld this material.
I'll be glad.

Regardings,
Norberto de Souza Barbosa - Brazil






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[Mrityunjay Kumar / ZS Saudi PEB QA/QC]

Dear all,
Can anybody tell me the difference between semi Killed & killed steel.

Thanks and Regards,
M.K.Choudhary

PEB - QA/QC
P.O. Box 877, Dammam 31421
Kingdom of Saudi Arabia
   +966 38471840 Ext- 555
    +966 38471840 Ext-559
 www.zamilsteel.com


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[John Henning]

From Making , Shaping, and Treating of Steel, by United States Steel, c 1985, published by AISE, pg.700.

"Killed Steel - The term killed indicates that steel has been deoxidized sufficiently for it to lie perfectly quiet when poured into an ingot mold. There is no evolution of gas in the mold and the top surface of the ingot soldifies with relative rapidity. Killed steel generally is used when a homogeneous structure is required in the finished steel. Alloy steels, forging steels, and steels for carburizing are of thes type, when the essential qualifty is soundness. In general, all steels with more than 0.30% carbon content are killed. . . ."

"Semikilled Steel -Semikilled steel is deoxidized less than killed steel, and there is enough oxygen present in the molten steel to reat with carbon and from gas after the steel ispoured into molds. Semikilled steel finds wide application in structural shapes, plates and bar products. This steel generally has a carbon content within the range of 0.15 to 0.30%. The usual practice is to bring the carbon content of the steel in the furnace to the desired carbon content for tapping. Ferro manganese may be added to the furnace , to the ladle, or to both. Carbon, ferrosilicon, and aluminum may be added to the ladle. Usually most deoxidation is don in the ladle so that only a few grams of aluminim perton of steel weil berequired as a mold addition to produce the desire level of deoxidation so that the gas bubbles are trapped in upper portion o fthe ingot during solidification."

-----Original Message-----
From: material...@googlegroups.com [mailto:material...@googlegroups.com] On Behalf Of Mrityunjay Kumar / ZS Saudi PEB QA/QC
Sent: Monday, September 28, 2009 5:37 AM
To: material...@googlegroups.com
Subject: [MW:3344] RE: 3331] Re: Base Metal


Dear all,
Can anybody tell me the difference between semi Killed & killed steel.

Thanks and Regards,
M.K.Choudhary

PEB - QA/QC
P.O. Box 877, Dammam 31421
Kingdom of Saudi Arabia
'   +966 38471840 Ext- 555

7    +966 38471840 Ext-559
ý   www.zamilsteel.com

[Jambhale, Rupesh A]

Dear Mr. Choudhary,
Find below definitions fyi.

Killed steel: Completely deoxidized.
Semikilled: Not Completely deoxidized
Rimmed Steel: No deoxidizer added

Regards,
Rupesh Jambhale

-----Original Message-----
From: material...@googlegroups.com [mailto:material...@googlegroups.com] On Behalf Of Mrityunjay Kumar / ZS Saudi PEB QA/QC
Sent: 28 September 2009 16:07
To: material...@googlegroups.com
Subject: [MW:3344] RE: 3331] Re: Base Metal

Dear all,
Can anybody tell me the difference between semi Killed & killed steel.

Thanks and Regards,
M.K.Choudhary

PEB - QA/QC
P.O. Box 877, Dammam 31421
Kingdom of Saudi Arabia
'   +966 38471840 Ext- 555
7    +966 38471840 Ext-559
ý   www.zamilsteel.com

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[israr ahmed]

Dear Mr Mritunjay

 

Killed steel oxidised by addition of oxidizing agend to reduce oxigen content up to certail level to reduce any re4action during solidification.

 

Semi Killed steel is incompletly deoxidised and containing sufficient oxygen and during solidification it produce carbon monooxide.

--
Israr Ahmed Noor Mohammed
+966530417332