Materials & Welding

Dear Madheswaran, S195T is C-Mn Steel with Material No. 1.1 as per EN 15608, You can consider it as P1 G1  On Tue, Jun 27, 2023, 08:41 Madheswaran s < madhes.sss@gmail.com > wrote: Dear All,  I have WPS P1 material , S195T (Carbon steel) is tubing/Piping material client free issue material. I don't know the P number for this material, I seached in google , i didn't get any equivalent material in astm/Asme for determinig P Number. Can anyone clear the issues briefly? Can i use same WPS for that of P1 material or I have to qualify for S195T as a new.?  -- 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...

Dear All,  I have WPS P1 material , S195T (Carbon steel) is tubing/Piping material client free issue material. I don't know the P number for this material, I seached in google , i didn't get any equivalent material in astm/Asme for determinig P Number. Can anyone clear the issues briefly? Can i use same WPS for that of P1 material or I have to qualify for S195T as a new.?  -- 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/1be202d9-fb44-41d9-9fd8-5afa8d36708bn%40googlegroups.com .

for dish head after cold forming heat treatment is not mandatory as per asme secVIII div1 untill you are not exempted from condition as per ug79,ucs79. if not exempted than do heat treatment as per ucs56 called it stress relieving. you have option of normalizing also for cold form dish head heat treatment but for that you need one copoun to be normalized and tested as per ug 85. if dish head are welded than you need pqr with same heat tretament :- if dish head is stress relieved- pqr also stress relieved if dish head is normalized- pqr also normalized On Tue, 23 Nov 2021 at 12:44 PM rahmat khan < mkrahmat11730@gmail.com > wrote: Dear All, Please help me with this: 1) which filler wire is to be used for GTAW welding of two dissimilar materials P number that is P43 (Inconel 625) to P8 (A240 310S). 2) For SA 516 Gr 70 22mm thick. Ellipsoidal 2:1 dish end, which heat treatment to be used as per ASME Sec VIII Div I UCS 56 After cold forming of dish end. Please help me I this?   ...

Dear Ronak : Austenitic steels ( non L grade) are typically prone to sensitisation when subjected to temperature range of say 400 to 800 mdeg C and remained for a sufficient time at this temperature . Chrome and carbon present in IGSCC plays a major role .     On Tue, 20 Jun 2023 at 08:47, Ronak Patel < patelronak447@gmail.com > wrote: Dear Experts , We are using SS410S CLAD in Coke Drum at 450 degree temp. Is IGC test required for SS410S material ?   at present there is no requirement of IGC testing for SS410S in coke drum cladding in industry .   As per my understanding, IGC happens in ferritic SS as well if they are exposed to high temp(450 in my case) in operation , welding or PWHT. So why SS410S is not tested for IGC as per A763 ? How IGC is different in ferritic SS than in Austenitic SS ? Thanks and Regards, Ronak Patel. -- https://materials-welding.blogspot.com/ https://www.linkedin.com/groups/122787 --- You received this message because you are subscribed ...

Greetings, Please share WPS sample for P43 to P8 welding.  ASME Sec. ix. Muhammad Babur Khan Sent from my iPhone On 24 Nov 2021, at 12:31 PM, Kannayeram Gnanapandithan <kgpandithan@gmail.com> wrote:  Why Inconel 625 is not suitable, could you elaborate to understand. THANKS & BEST REGARDS, KG.PANDITHAN, BE, IWE,  CSWIP 3.1, ISO 9712 Level 2 in VT, ASNT-Level II in PT,MT,RT & UT, LA ISO 9001-2015, International Welding Engineer.  CONSULTANT-WELDING & QUALITY Mobile no: +919940739349 On Wed, Nov 24, 2021 at 1:39 PM Arun Padman < arunpadman0105@gmail.com > wrote: Dear, ER NiCrMo-3 is suitable to weld 625 to 600/625/825/C-22/B-2 etc., not 310. Regards, Arun Padman Manayil P     Save a tree. Please don't print this e-mail unless you really need to On Wed, Nov 24, 2021 at 6:19 AM rahmat khan < mkrahmat11730@gmail.com > wrote: As per my understanding For P43 Filler wire ER NiCrMo-3 is suitable as per chemical and mechanical prop...

Dear all, 410 and 410S are two different stainless steel grades with distinct compositions, properties, and applications. Here are the primary differences between them: 1. Composition: - 410 stainless steel is a martensitic stainless steel grade, with approximately 11.5-13.5% chromium content, which provides a decent level of corrosion resistance. It also typically contains a small percentage of carbon (0.15% max). - 410S stainless steel is a modified version of 410, with a lower carbon content (0.08% max). The lower carbon content helps to improve the material's weldability and prevents hardening when heated. 2. Properties: - 410 stainless steel exhibits higher hardness and strength, due to its higher carbon content. It can be hardened and tempered through heat treatment to achieve better mechanical properties. - 410S stainless steel has lower hardness and strength compared to 410, due to its lower carbon content. Although it cannot be hardened through heat treatment, it is more d...

Just to share, A snap shot from ASME B31.3  "> Notes 35 & 50 "> "> "> Thanks & Regards J.Gerald Jayakumar On Friday, 23 June, 2023 at 04:45:45 pm IST, Ronak Patel <patelronak447@gmail.com> wrote: Thank you for your response!! W.r.t point no 2 above :- Carbon Percentage in SA240 SS 304 is 0.07 , in SA240  SS410S is 0.08 .. We do IGC testing for SS304 after welding so why not for SS410S ? it too has almost same carbon .  w.r.t point no 4 above :- Operating temp for one of our coke drum was 460-500 degree but even in that case licensor did not mention IGC requirement for SS410S Clad + LAS Base material. On Tuesday, June 20, 2023 at 2:19:30 PM UTC+5:30 james gerald wrote: SS 410S is Ferritic stainless steel with a maximum carbon of 0.08%. SS is prone to IGC or sensitization if exposed...

The only difference between 410 & 410S is carbon except very slight variation in Nickel. See below snap shot. Single value shown is maximum but in the MTC it will 0.03-0.04%. Carbon expands the Austenitic zone and that is the reason why Martensite is formed due to transformation. "> Thanks & Regards J.Gerald Jayakumar On Friday, 23 June, 2023 at 04:45:45 pm IST, Ronak Patel <patelronak447@gmail.com> wrote: Thank you for your response!! W.r.t point no 2 above :- Carbon Percentage in SA240 SS 304 is 0.07 , in SA240  SS410S is 0.08 .. We do IGC testing for SS304 after welding so why not for SS410S ? it too has almost same carbon .  w.r.t point no 4 above :- Operating temp for one of our coke drum was 460-500 degree but even in that case licensor did not mention IGC requirement for SS410S Clad + L...

Guys, SS 410S is ferritic SS or Martensitic SS? See attachment. Regards Gigi On Friday, 23 June 2023 at 14:26:45 EEST, 'Manisha Sahu' via Materials & Welding <materials-welding@googlegroups.com> wrote: Hello Ronak, As mentioned by vishwas sir,  This is not more related to carbon percentage but the apparent microstructure.  As mentioned SS410 S mainly believed to have martensitic structure which is not relavnt to grain distribution which is observed in inter granular corrosion practice where the susceptibility of materials to be checked by attacks of carbon at grain boundaries. On Fri, 23 Jun, 2023, 4:45 pm Ronak Patel, < patelronak447@gmail.com > wrote: Thank you for your response!! W.r.t point no 2 above :- Carbon Percentage in SA240 SS 304 is 0.07 , in SA240  SS410S is 0.08 .. We do I...

Hello Ronak, As mentioned by vishwas sir,  This is not more related to carbon percentage but the apparent microstructure.  As mentioned SS410 S mainly believed to have martensitic structure which is not relavnt to grain distribution which is observed in inter granular corrosion practice where the susceptibility of materials to be checked by attacks of carbon at grain boundaries. On Fri, 23 Jun, 2023, 4:45 pm Ronak Patel, < patelronak447@gmail.com > wrote: Thank you for your response!! W.r.t point no 2 above :- Carbon Percentage in SA240 SS 304 is 0.07 , in SA240  SS410S is 0.08 .. We do IGC testing for SS304 after welding so why not for SS410S ? it too has almost same carbon .  w.r.t point no 4 above :- Operating temp for one of our coke drum was 460-500 degree but even in that case licensor did not mention IGC requirement for SS410S Clad + LAS Base material. On Tuesday, June 20, 2023 at 2:19:30 PM UTC+5:30 james gerald wrote: SS 410S is Ferritic stainless steel with a maximum ca...

1. Pre-Weld Inspection: Inspect the cracked area to determine the extent of the damage and verify that it can be repaired through welding. If the crack is extensive and compromises the structural integrity of the material, you may need to perform a metallurgical replica to determine if it's feasible to repair or if the material needs to be replaced. 2. Crack Removal: Remove the cracked area by grinding or gouging the crack using an angle grinder or a carbon-arc gouging technique. Ensure complete crack removal and create a smooth, gradual transition along the edges of the groove. 3. Surface Preparation: Clean and prepare the area to be welded by removing rust, paint, oil, grease, or any foreign contaminants. Ensure that the groove sides and surrounding areas are free from defects or damage like gouges, sharp edges, or overcuts. check with PT/MT for remaining nonvisible defects  4. Preheat: Preheat the base material following the base material manufacturer's guidelines or the wel...

To implement a repair to a crack on a base material SA 516-Gr 70, you must follow a proper welding procedure which includes the following steps: 1. Pre-Weld Inspection: Inspect the cracked area to determine the extent of the damage and verify that it can be repaired through welding. If the crack is extensive and compromises the structural integrity of the material, you may need to perform a metallurgical replica to determine if it's feasible to repair or if the material needs to be replaced. 2. Crack Removal: Remove the cracked area by grinding or gouging the crack using an angle grinder or a carbon-arc gouging technique. Ensure complete crack removal and create a smooth, gradual transition along the edges of the groove. 3. Surface Preparation: Clean and prepare the area to be welded by removing rust, paint, oil, grease, or any foreign contaminants. Ensure that the groove sides and surrounding areas are free from defects or damage like gouges, sharp edges, or overcuts. 4. Preheat: ...