Skip to main content

Re: [MW:35068] Selection of Welding Electrodes

By Materials & Welding
API-582.

On Wednesday, June 12, 2024 at 5:04:52 AM UTC+3 Amol Betkar wrote:

Dear,

As a Welding Engineer, selecting the appropriate electrode or filler material for a job involves several considerations. Both the ASME and EN standards provide guidelines to assist in making these choices.

For instance, in the case of welding S355J2 to S355J2, you would consider the following:

  1. Material Compatibility: Ensure the electrode or filler material is compatible with the base metal. For S355J2, a common filler material would be one that matches or exceeds the mechanical properties of the base metal.

  2. Mechanical Properties: The chosen filler material should meet or exceed the tensile strength, toughness, and other mechanical properties required for the joint.

  3. Welding Process: The welding process being used (e.g., SMAW, GTAW, GMAW) will also influence the choice of electrode or filler material.

  4. Standards and Specifications:

    • ASME Section II Part C provides specifications for welding rods, electrodes, and filler metals.
    • EN ISO 14341 for welding consumables, wire electrodes, and filler materials for gas shielded metal arc welding of non-alloy and fine grain steels.

For welding S355J2 to S355J2, a commonly used electrode is E7018 (according to AWS) or an equivalent from EN, such as E 42 4 B 42 H5 (according to EN ISO 2560). This electrode is chosen because it provides good toughness and meets the mechanical property requirements of S355J2.

Procedure:

  1. Identify the base material properties: S355J2 is a structural steel with good weldability and impact resistance.
  2. Match the filler material: Choose an electrode like E7018 that has matching mechanical properties and meets the required standards.
  3. Verify standards: Ensure the selected filler material complies with ASME Section II Part C or the relevant EN standards.
  4. Weld Procedure Specification (WPS): Develop a WPS that includes the selected electrode, welding parameters, preheat and post-weld heat treatment (if necessary), and other relevant details.

I hope this provides a clear approach to selecting the appropriate electrode or filler material for welding S355J2 to S355J2.

AB


On Tue, 11 Jun 2024 at 12:29, Shivasankar A <shivasa...@gmail.com> wrote:
Dear Team,

As a Welding Engineer, How can i Choose the Electrode/Filler material for a Job.

Is there any Guidelines in ASME / EN.

For Example: S355J2 to S355J2 which electrode i will use and how?

If any guideline from ASME / EN means Better.

Regards,
A.Shivasankar

--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-weld...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/41ec3858-d254-43de-ac81-a7e7ed0f6c45n%40googlegroups.com.


--
Best regards,

Amol K.B
B.E(Mech), CSWIP 3.2.2, NACE CIP 1 & ASNT LII(4M)

--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/b495087a-2125-4980-9684-3bee168268b9n%40googlegroups.com.

Comments

Post a Comment

Popular posts from this blog

Re: [MW:34105] SA266 GR4N 4 Cycle SPWHT

By Materials & Welding
Hi,  You are correct, Minimum refers to the one cycle for which this part will expose until final work shop PWHT. hence mill test certificate shall include this.  Max. SPWHT, refers to additional cycles of heat treatment that are reserved for future repairs during equipment lifetime.  Again, these simulated no. Of cycles shall be specified in MTC.  The idea is we need to make sure that steel mechanical properties are not compromised upon exposure to multiple repairs (i e 4 cycles in your case).  One could say, if steel is subjected to 4 cycles and is ok, then it should by defacto be good for one cycle, yet, this is wrong assumption cause mechanical problems and microstructure of materials varies accordingly based on no. Of cycles for which material will expose. This is apparent in alloy steel and especially for impact test values as an example.  In your case, this forged CS with properties before PWHT can be understood to be " as forged" condition (i.e. Wit...
Post a Comment
Read more

Materails FAQs

By Materials & Welding
Q: What are equivalents for standard Q 235 B (and Q 235 A) for U-channels? (asked by: boris.vielhaber@vait.com) A: DIN Nr. = 2393 T.2, 2394 T.2, EN 10025 W. Nr. DIN 17007 = 1.0038 Design DIN 17006 = RSt 37-2, S235JRG2 (Fe 360 B) Q: What is St DIN 2391 BK material? (asked by: dmcandrews@automaticstamp.com) A: Precision steel tubes, cold-finished/hard. Q: What is C.D.W. Boiler Tube? (asked by: montydude123@yahoo.com) A: Cold Drawn Welded Boiler Tube. Q: WHAT IS W.Nr. 1.4301? PLS TELL US IN EASY LANGUAGUE (asked...
21 comments
Read more

Heat tint (temper) colours on stainless steel surfaces heated in air // Heat tint

By Materials & Welding
Introduction The colour formed when stainless steel is heated, either in a furnace application or in the heat affected zone of welds, is dependent on several factors that are related to the oxidation resistance of the steel. The heat tint or temper colour formed is caused by the progressive thickening of the surface oxide layer and so, as temperature is increased, the colours change.   Oxidation resistance of stainless steels However, there are several factors that affect the degree of colour change and so there is no a single table of colour and temperature that represents all cases. The colours formed can only be used as an indication of the temperature to which the steel has been heated. Factors affecting the heat tint colours formed Steel composition The chromium content is the most important single factor affecting oxidation resistance. The higher the chromium, the more heat resistant the steel and so the development of the heat tint colou...
Post a Comment
Read more