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- - By bryancobb Date 07-10-2012 15:25
Hi,

On a GTAW weld procedure, using ER70 S2 filler wire and 100% Argon shield, and joining 4" SCH40 SA-106B Pipe, what can we do in the procedure
to insure the test coupons will pass a Charpy Impact Test at the -40 degF MDMT ?

Will a preheat help?  What temp preheat?  Is a different filler needed?  Is PWHT needed?
Parent - - By welderbrent (*****) Date 07-10-2012 18:33
Bryan,

Since I already welcomed you (check other thread) we'll will skip that formality...

1) What code are you working to?
2) As I am not real familiar with various alloy numbering in pipe, is this a Chrome-Moly pipe?
3) Are you testing to a WPS with a PQR already approved, or qualifying the PQR? 

Hopefully some of the guys with more experience in alloys will jump in here soon but it may help if you could answer these questions to give them more info.

Have a Great Day,  Brent
Parent - By MMyers (**) Date 07-10-2012 19:06
Add to that, are these center line fusion zone or HAZ impacts?
Parent - By js55 (*****) Date 07-11-2012 13:34
-40 is not as tough as it used to be. Todays steels are very clean as compared to just 20 or 30 years ago. The HAZ will essentially be normalized/quenched and fine grain (large grained HAZ will be almost nothing unless you really crank it up) whatever material you use. The issue will be how much your impact specimens overlap into the base metal. For procedure qual you can use anything that matches P-No Group No. Unless you are under an extreme time constraint CVN's are relatively quick and inexpesive I would try one with liberal parameters and then get more restrictive if need be. Stick with high quality name brand fillers. Even for triple deox S2 -40 should not be prohibitive.
- - By 803056 (*****) Date 07-11-2012 03:18
ASTM A106 Grade B is seamless carbon manganese steel pipe.

I qualified several WPSs for SMAW root, fill, and cover and I qualified WPSs for GTAW root with FCAW fill and cover, both with and without PW stress relief. All were able to pass at 20 degrees F. The system was pressurized water, so the system could not operate at temperatures below freezing. Notch toughness testing at -40 degrees is a cat of a different color.

My recommendation is to limit the interpass temperature (400 to 450 degrees max.) and keep your heat input on the low side, i.e., 35 kJ/in to 45 kJ/in.  That should mitigate grain growth in the HAZ and help with the toughness.

Best regards - Al
Parent - - By welderbrent (*****) Date 07-11-2012 03:47
I knew someone here would know what those numbers were. 

Have a Great Day,  Brent
Parent - By 46.00 (****) Date 07-11-2012 07:41
Is not ASTM A106 Grade B designated for elevated temperature use? Not saying -40 is not achievable , just thought A333 would have been a more suitable grade?
- - By 803056 (*****) Date 07-12-2012 00:40
Brian;

You didn't mention which welding code you are using. Be sure to check the construction code to ensure you are covering all bases. My concern is that you may be working to B31.3 Process Piping. Depending on the fluid service, the requirements for impact testing may change. In particular, High Pressure requires the specific material specification used for construction be used to qualify the WPS. It isn't based on P-number and Group as is the case with other fluid service classes.

Best regards - Al
Parent - - By nantong (**) Date 07-12-2012 12:27 Edited 07-12-2012 12:33
Why would you want to use base material and a consumable that does not have a specified MDMT temperature that you require? I think this is a failure on your piping design engineer's part on material selection and your welding engineer's part in consumable selection. I don't know how this works legally in the US but in Europe if you made your selection and there is a catastrophic failure at low temperature someone will find themselves in court and likely to have to serve a prison sentence especially if someone is severely injured. You maybe fortunate to get a procedure through but that does not mean every piece of production material will have the required low temperature properties.
Parent - - By js55 (*****) Date 07-12-2012 18:48
Nantong,
There is no such thing as an MDMT for fillers or qualification materials. That is a code of construction designation.
And if your procedure qual tests it out and the procedure is proven you have no negligence to go to prison over.
S series carbon steels are not uncommon in CVN regimes even when welding, as what was suggested, the SA-333 materials, unless you bump up to the nickel steels.
Another thing, if the design engineer is requiring one material and the fabricator is qualifying another material (other than in the case that Al made clear) the fabricator IS NOT going to go to prison for the engineer's negligence. So first of all you are overreacting and second of all you seem to be confusing the roles of procedure qualifications for a fabricator and the design from an engineer.
We qualified SA-333 Grade 6 designed materials with SA-36 for years, and for nukes. There is not only nothing negligent in the practice there is nothing unethical or risky. Grade 6 was the spec material but the MDMT was nowhere near the -50 that Grade 6 is tested to. The reason simply was that you couldn't pass CVN's with the grade 6 becasue you couldn't equal or exceed the UBM with the HAZ because no matter what you do you degrade the base metal. In essence, the material was too good. You had to go to a large grained (hot rolled) material.
One last point, the base material used for qualification is for the most part irrelevent to the material used in fabrication design, unless your doing nukes, simply because todays materials whether intended for high temp or low temp are clean and the mechanicals are for themost part in the processing NOT the chemistry. For example, the 333 Grade 6 is a fine grained material and the 106 is a large grained material but the chemistries are essentially identical. There may be a little greater carbide precipitation in the outer regions of the HAZ with 106 but the transformed regions will be pretty much indisitguishable. And the dilution into the weld metal will be absolutely indistinguishable.
Parent - - By jon20013 (*****) Date 07-13-2012 05:25
We did dozens of A106, Gr. B -46C impact tests while I was in Kazakhstan (multiple contractors) and never had too many problems using virtually any of the 70 series fillers.  Folks are mentioning A333 only because its designated as a low temp base metal but 106 can likely go just as low.
Parent - - By nantong (**) Date 07-13-2012 10:01
If you build any pressure equipment for use in Europe from materials which have not been impact tested by the material manufacturer when there is a specification requirement for impact testing by the equipment manufacturer then you are breaking the law. You cannot engineer your way out. Refer to PED Essential Safety Requirement Guideline 7/24
Parent - - By js55 (*****) Date 07-13-2012 12:58
Nantong,
Nobody is talking about using materials for pressure equipment that have not been impact tested. Part of the difficulty is that you are confusing materials used in qualification with materials used in production. And I would certainly argue that anybody who has spent time with B31.3 and ASME Section VIII (the queen mother OF ALL impact testing world wide) would conclude that a more thorough, comprehensive, and reasoned set of requirements do not exist.
Parent - - By nantong (**) Date 07-13-2012 15:13
JS 55, "Nobody is talking about using materials for pressure equipment that have not been impact tested" ASTM A106 with impacts at minus 40C, I thought it was pressure pipework, is he building a garden gate? Has the material been impact tested at -40C by the manufacturer? In the EC this is a legal requirement which you fail to comment on.

"confusing materials used in qualification with materials used in production" surely the material you use in procedure qualification should be representative of the production material.

"B31.3 and ASME Section VIII (the queen mother OF ALL impact testing world wide" not quite correct. Why did ASME issue in July 2001 a document Guide for ASME Stamp Holders Use of ASME Section VIII Div. ! to meet the EC Pressure Equipment Directive (97/23/EC) ?

ASME addresses difference in this document and you have not.
Parent - - By js55 (*****) Date 07-13-2012 21:12
Nantong,
The question related to qualification and what we have been talking about IS 'representative'. As for the 'queen mother' comment ASME section VIII was developing impact testing requirements when the EC was still blowing themselves up and arguing over whether the NCR should be in French or German. Just kidding. But in any case the Section VIII requirements were developed before there WAS an EC.
The original impact testing research and requirements developed out of the unexpected fracturing of American Liberty ships in the north atlantic. ASME was not too far behind.
Also, materials for procedure qual are not required to be impact tested per the MDMT. If it were you would have to requalify every time you had a new contract. The welds are impact tested. The production welding materials are impact tested. Production base metals are impact tested. NOT qualification materials. The procedure is qualified NOT the procedure qualification materials.
As for the guide, it is one of many things ASME is doing to market to people outside the US. I cannot help it if the EC is in need of remedial instruction. Besides, I believe in this context nobody gives a shyt about the EC.
Parent - - By nantong (**) Date 07-14-2012 10:26
JS55, I cannot believe if your production material is impact tested then you take a risk at qualifying procedures with non-impacted tested material. Are you a lawyer using the loop-holes in ASME or are you a welding engineer? How do you answer your Construction Manager when your charpies fail and he finds out you have not used materials with guaranteed properties when you have a shed full of them? (Shane could you imagine what Fred Sprong would have said to me if the procedures qualified in New Caledonia and failed in Australia after a six week wait on results?)

With regard to your statement about the EC blowing themselves up Britain was fighting a world war along with ANZAC forces to ensure freedom against the German and Japanese for world domination whilst America was developing ASME hiding below their beds, only kidding (rhetoric).

As to the guide ASME thought it was important enough (commercially) to address the issue as the EC is a big market for US companies. If you personally (think and others) do not give a shyt about the EC then that is your prerogative. You will run the risk of being more isolated.

The US is a diminishing market with so much incurable debt the EC and China is the way forward perhaps. Sad.
Parent - By js55 (*****) Date 07-16-2012 13:05
Nantoing,
1) It isn't a loophole its common engineering sense. If you buy a weld material to qualify a procedure the procedure will prove out. Now, if your inexperienced and need reassurance I can understand that. But keep in mind, if you order say, impact tested ER70S-2 and non impact tested ER70S-2 your gonna get the SAME STUFF. The only difference is your gonna pay for the impact testing paper.

2) I don't answer to a Construction Manager. That would be a conflict of interest.

3) Yup the war was being fought for freedom against the Germans. And now its the Germans who have to decide if they wish to risk their economy and inject money into an irresponsible dying system to save it. Talk about incurable debt. Spain, Italy, Portugal, Greece. All on the edge of financial collapse with an electorate that just can't let go of those government gimme's. Merkels got a tough decision. But thats OK. Maybe they can go to the IMF. But then who funds most of that? Those damned diminshing Americans thats who.

4) Of course a global market is important. The 'not give a shyt' was clearly stated as being within this context. Pay attention.

5) And it is fully expected that the US markets will diminsh world wide. But it isn't coming from the limping bankrupt socialist economies of europe. Its coming from asia (China, India, Indonesia). So you might want to keep an eye on your own diminishing markets.

6) This is fun.
Parent - By js55 (*****) Date 07-16-2012 13:28
Nantong,
And one other point, why is there an EC with a Euro currency in the first place?
To try and help the european countries compete against those diminishing Americans.
The only problem is the German interests are farther from the French interests than New Yorkers are from Californians. And it has a long long history of animosity to boot, as you mentioned yourself. To my knowledge New York never invaded California. The New York National Guard never occupied Los Angeles. And there never was a Vichy California.
Parent - - By js55 (*****) Date 07-16-2012 13:37
Nantong,
Oh, and yet one more thing. You mentioned PED.
Why is there a PED.
Simple. Protectionism.
To keep those diminishing Americans (and everybody else) out, and facilitating greater movement of pressure equipment within the EC.
Now I ask you, does a move to protectionism convey a position of strength or weakness?
Parent - - By 46.00 (****) Date 07-16-2012 14:00
Wow!
Parent - - By nantong (**) Date 07-20-2012 14:47 Edited 07-20-2012 15:07
JS55 you failed to answer the most important question.

If you have impact tested consumables AND materials why do you qualify a procedure using ER70S-2, good for -30C and A106 GrB which has no impact testing done on it when you have a design requirement of -40C or below? Don't just talk about the cost of paperwork for ER70S-2 (you must work for a real stingy company!)

I have seen contractors procedures fail with this several times in my time. I have nearly 40 years experience in the industry most of which has been overseas. You can call this inexperience if you can better this.

You do answer to your Construction Manager. If you are an inspector you will answer him through the quality manager. If the Construction Manager wants to start welding he will ask the Project Manager or Director why  the procedure failed. No doubt he will ask is your procedure wrong, is there a problem with the consumable manufacture, is there a problem with the base material. How do you answer? "Oh it was OK before, Jon 20013 had not too many problems!".

As to your countries input input to the IMF this is based on its relative size in the world economy which you agreed to. You agreed to this. If you don't like it you should never agree.

"Yup the war was being fought for freedom against the Germans". Unfortunately your government of the time, although siding with England would not enter the war. Instead they chose to sell (not give) England armaments to do the fighting for them. England payed off their last WWII war debt to the US six years ago in 2016. Please let me temper this with the heartfelt gratitude for the American volunteers who gave there lives selflessly in a great cause which their government at the time which could not face.

With regard to diminishing markets China is the main player it has the cash (or your debt) and it will play the field especially Europe for technology and Africa for resources. I think they will keep US at arms length due to its military dominance and child like understanding of world politics.

Why is there a Euro? I don't know I am not an economist. Please tell me which countries in the EC are socialist.

PED as you should know is legislature put in place with countries wishing to do business within and outwth the EC to ensure an openness and develop free markets and that all goods are compliant with safety regulations of every member state. How you think this is protectionism your statement beggars belief .
Do you want to do business with the European Community? Do you want to do business with the regulations of 27 different countries or deal with one set of regulations for all EC countries?

I take it you are a young guy or someone who has not traveled much. So do not take offence.
Parent - - By js55 (*****) Date 07-20-2012 19:52
Nantong,
No offense.  We're just playing.

Young?  Heh, heh, heh. Thats a good one.
Inspector?  Thats almost as funny.
No. I am the Manager of Quality Assurance, Quality Control, Welding Engineering and Metallurgy, 2 AISC Programs for Structural Steel Erection and Fabrication, 3 ASME Programs for Pressure Piping, Boiler Code, and a 5 scope 2 location program for nuclear, as well as an API program for fabrication, maintenance, and inspection under API 1104, 510, 570,and 653. I also manage a 3 location, 3 product line, 2 company ISO 9001 program.
Also, I have very little insecurity when it comes to criticisms from Project Managers or Construction Managers.
They really don't want to piss me off.  :lol:

As for child like understanding? I am well aware that such an opinion is popular amongst europeans and the american left. But right back atcha with the indictment that the european approach to the world is much like the proverbial camel.

As for your first question, that seems to be giving you so much consternation, I think jon's statement said it all. Neither he nor I have stuggled as you have. So, whats the problem? It is possible my company would allow me to consult if need be. I doubt they would consider you competition.

And one last thing, trying to explain to you the socialist influences of europe is like trying to explain the properties of water to a fish.
Parent - - By ssbn727 (*****) Date 07-21-2012 02:09
Bada-Bing, Bada-Bang, Bada-Boom!!!:eek::evil::yell::cool::wink:

Did you ever feel like a comma (,) in a thousand page book that never got published because of an overwhelming amount of errors found?:yell::lol::eek::roll::wink::cool:

It sure is fun J!!!:yell::grin::lol::wink::cool:

Respectfully (towards most - that is. :evil::eek::lol::wink::yell::cool:),
Henry
Parent - - By nantong (**) Date 07-21-2012 11:38
Manager of Quality Assurance, Quality Control, Welding Engineering and Metallurgy, sounds like a bit of conflict of interest there, how do you audit yourself? Use a mirror? Does your dad own the company?

Talking about Socialism you fail to mention how much experience you have working outside the US, have you been outside your own state?

With regards to fish you remind me of one (out of water).

Good to see you post Henry, I have not seen you post recently. Hope you are in good health. Sorry did not understand what you said but please keep taking the medicine.
Parent - - By js55 (*****) Date 07-26-2012 19:39
Nantong,
Not sure what relevance an international reference is. Seems like you are grasping at straws.
However, I will admit I have only managed engineering and QAQC operations in Mexico and Venezuela, and traveled considerably in Canada.
I also worked for and consulted for companies with operations globally (china, india, africa, south america, europe, etc.) although I did not physically hop on a plane and cross the big water.
But enough of my resume'. I'm sure that in most unbiased assessments it would be adequate.
Perhaps not up to whatever bullshyt standard you are reaching for, but nonetheless.
Eliminating conflicts is easy. We have outside subs for our ISO and nuclear internals and internally trained people for the other programs.
Its a no brainer. It ain't rocket science. Now, this may not be sufficient for whatever criteria you are tying to develop on the fly in desperation but having sat through more successful audits than I care to count I think we're fine.
If you need help in arranging such, let me know the offer of consulting is still there.
Out of water? Not sure what that means but OK. If you say so.
Parent - - By js55 (*****) Date 07-26-2012 19:47
Nantong,
I will be in Washington DC next month at ASME Code Week. Perhaps in representing the international set of the forum you could hop on a plane and meet me there. I'll buy you a couple of beers and we can exhange war stories.
Parent - - By 46.00 (****) Date 07-27-2012 07:51
When people have finished hijacking this thread to impress there own importance, can we get back to the OP question?
Parent - - By Shane Feder (****) Date 07-27-2012 12:47
Guys,
Firstly let me state that nantong is my former boss, mentor and a good friend but I will never let those allegiances get in the way of a good arguement.
I sent him an ASME interpretation backing up what Jeff had previously stated regarding using any material of the same P number to qualify a PQR.
Then I sat back and looked at it, how can anyone say the impacts from one P1 are going to be the same as another P1 ?
The only way to ensure everyone is going to be happy (especially the client) is to perform the PQR impacts on the same material as what will be used in production.
Obviously, if you don't know the future job you cannot qualify on production material but the OP seemed to be asking how to get a specific job over the line.
Anyway, have a good weekend guys,
Cheers,
Shane
Parent - By js55 (*****) Date 07-28-2012 06:53 Edited 07-28-2012 06:57
Shane,
Once again the P-No is irrelevant. The base metal in production will be determined by design and customer spec NOT the fabricators procedure qualification.
So I ask, if the design spec calls for SA-333 Gr 6 and you qual a procedure using SA-516-XX and the procedure passes what exactly is the problem?
Tell me how some chemical difference between SA-333 and SA-516 is going to make any difference in the weld deposit?
Or SA-106,or SA-36?
Tell me how you will verify any differences in the dilution into the weld.
In fact, you have proven your procedure with arguably lesser tested material.
And if HAZ's are an issue it should be remembered you will essentially not have ANY difference between SA-516 and SA-333 grade 6 since they will have been subjected to the exact same heat regime. Oh, the 333 HAZ will probably test out better. But only because you can't isolate the V-notch in the HAZ absolutely. But is this what you would want? To essentially give yourself a warm and fuzzy based upon V-notch overlap?
And as for fillers, I say once again, purchase the fillers with impact testing certification to verify the materials.
These kinds of engineering decisions are made every day.
And one other point here which we have not yet addressed.  What if you have a job with multiple heats of material. Quite common of course. If we are to take nantong's argument to its logical conclusion you not only have to qualify a new procedure for every job to "make sure everyone is happy", but you would have to qualify a new procedure for every heat of material you receive. I mean, how can you absolutely verify the properties of a new heat without qualifying to your procedure? Now I ask, does anybody do this?
Isn't this variance in heat the exact same issue as we discussed with the ER70S-2 fillers? Do you run a new procedure qualification for ever heat of material you purchase? Obviously the Code body has allowed some engineering judgment that doesn't imply negligence or  lead to jail.
Parent - By js55 (*****) Date 07-28-2012 06:21
The question was answered. So piss off 46.
Parent - - By js55 (*****) Date 07-28-2012 06:55
In fact, I got a better idea 46. If you think the answers are wanting then fill in the gaps yourself.
It could easily have been done without the hypocritical attack.
Parent - - By 46.00 (****) Date 07-28-2012 10:23
Thanks for that very professional reply. Not really the retort I'd expect from someone of your intellect, however I shall take it that you misunderstood my critique as personal, it was not. I'm sorry if you thought otherwise.

However I do not accept your accusation of me being hypocritical, can you justify your statement?

*hypocritical [hip-uh-krit-i-kuhl] 
Example Sentences Origin
hyp·o·crit·i·cal  [hip-uh-krit-i-kuhl]

1.of the nature of hypocrisy,  or pretense of having virtues, beliefs, principles, etc., that one does not actually possess: The parent who has a “do what I say and not what I do” attitude can appear hypocritical to a child.
2.possessing the characteristics of hypocrisy: Isn't a politician hypocritical for talking about human dignity while voting against reasonable social programs?

*ref http://dictionary.reference.com/browse/hypocritical

I am just a welder, so have no way near your godlike knowledge of welding science. In fact the main reason I come to this great forum is to increase my knowledge from people like you and nantong. How is this hypocritical?

I think you know that at least 80% of forum members would be unable to answer the OP post outright, so thank you for trying to belittle me by wanting me to 'fill in the gaps'

On a side note, your answer to Shane was excellent and very educated, more so than your answer to me, but I'm sure you know this.
Parent - - By 46.00 (****) Date 07-28-2012 11:17
As a side note, maybe aimed toward the Admin, the method of 'reply' on this forum is geared toward misunderstanding! Usual forums use a time based reply system or chronological order!
I have noticed that even post numbers # have been removed since the upgrade. This makes things even harder to reference posts in reply to!
Parent - - By ssbn727 (*****) Date 07-29-2012 05:59
GO BY THE DATES!
Parent - - By 46.00 (****) Date 07-29-2012 06:49
Yes Henry we can go by the dates, But that means looking!
Parent - - By jon20013 (*****) Date 07-29-2012 21:28
I can't believe this topic is still being debated.  Seems the OP would have gotten test results and posted them by now.  As for my seeming a bit casual in my previous response, it may only be because I've experienced way more impact tests than "some" in this group.  js55 ALWAYS has my respect for his comments so I'll just leave it there.
Parent - - By 46.00 (****) Date 07-29-2012 23:10
Thanks jon!
Parent - - By 46.00 (****) Date 07-30-2012 01:17
You respect him for telling me to piss off?
Parent - - By jon20013 (*****) Date 07-30-2012 10:35
Hey, I didn't say one thing about or to you 46.00 but if the effing shoe fits, put it on mate.
Parent - By jwright650 (*****) Date 07-30-2012 10:40
:grin:
Parent - - By jwright650 (*****) Date 07-30-2012 10:44
I didn't realize the numbering had changed....I usually go by the time/date stamps. Replying to a particular post is helpful as the thread will branch out under each reply...then you can see when a post was interjected up into the thread somewhere above the last post.
Parent - - By Shane Feder (****) Date 07-30-2012 11:42
C'mon guys - calm down.
Lets see a bit more tolerance shown here.
Each of the members contributing to this post have previously shown high levels of technical knowledge - lets keep it at that professional level.
I may have got things a bit off the rails by asking a question which may have seemed like doubting the previous posting (I seem to have a habit of doing that).
For that I apologise - I am continually trying to learn and the only way to do that is to ask questions
But Jeff responded with a very professional reply that helped me understand the reasoning behind the codes decision.
Some of the international posters on here (nantong being one of them) spend a lot of time involved with the European market (and the PED) where they are much more stringent and I think thats where some of the arguements we are seeing on this forum come from.
Cheers,
Shane
Parent - By jwright650 (*****) Date 07-30-2012 11:51

>C'mon guys - calm down.
>Lets see a bit more tolerance shown here.
>Each of the members contributing to this post have previously shown high levels of technical knowledge - lets keep it at that professional level.


Agreed. Thanks Shane.
Parent - - By js55 (*****) Date 07-30-2012 12:23
46,
"to impress their own importance", sounds pretty personal to me and I responded to what I thought was in kind. In the overall context I was merely responding to nantong's questioning of my experience, and age :grin:.   However, if indeed you did not mean it that way I accept that and stand corrected. This can often be a problem with electronic communications.

The hypocracy charge stems from the fact that you appeared to posture the moral high ground by criticizing nantong and myself for hijacking the thread when indeed the OP had been answered quite adequately by Al. And I also submit that both nantong and myself were offering points of information pertaining to the subject matter (albeit with side notes of sarcasm and politics) and intended to add to the technical information, which is in contrast to your post.
And perhaps I am misinterpreting once again but 'godlike knowledge' smacks of personal insult as well.

And let me close by saying two things that I have held from the very beginning of my participation in this forum. First, dispute, though it often drives emotionalism, also drives what are often the most informative threads we have. Agreement is often the death of interesting conversations. Energetic debates are always more interesting than the simple question and answer snoozers. It pulls points of interest out of those nooks and cranny's that may not have been considered without a bit of a push.
And two, far from claiming 'godlike knowledge' there is not a single time I visit this forum that I do not learn, or reinforce, something. And I spend far too much time communicating with people of far far greater knowledge than myself to not be sensitive to your latest sarcasm. Not that I have a problem with sarcasm. I use it myself as you well can see. It has a tendency to 'awaken us from our dogmatic slumbers' to paraphrase a famous philosopher. But I take no offense to it when in the context of a sincere technical discussion.
Parent - By js55 (*****) Date 07-30-2012 12:32
Also, I might offer this because I know it would be of value to me, perhaps the forum might consider a PED section. I'm not sure the european participation would warrant it as yet, but then again perhaps if the forum were available it would encourage greater participation.
From my perspective management has from time to time asked me to consider putting together such a program to help expand our markets (like I need another program to manage). I have spent a great deal of time reviewing standards and requirements (I can look across my office and see 3 6" stacks of such on a table)and still feel that what I know of it could fit on the head of pin with space left over.
Just a thought.
Parent - - By 46.00 (****) Date 07-30-2012 18:07
Well answered! :grin:
Parent - - By jon20013 (*****) Date 07-30-2012 19:05
Hey, whatever.  I'm just waiting to get an update from Brian Cobb (OP) to see if he's actually done anything?  While I agree debate is good, all too often it breaks down to bickering in our Forum and the trees are lost because we can't see past the weeds....
Parent - - By js55 (*****) Date 07-30-2012 19:52
jon,
If I may paraphrase a mutual friend, no trees have been lost in the sending of these contentious posts but a great number of electrons have been terribly inconvenienced.
Parent - - By jon20013 (*****) Date 07-31-2012 05:24
gotcha.
Parent - - By nantong (**) Date 08-06-2012 10:28
Sorry no time to reply as a I have been travelling a lot in China. Well JS55 travelled extensively in Canada (did you drive there) and Mexico (did you drive there too) Never been outside the Americas I see. No hands on international experience I see. This is digressing from the subject topic.
Why risk failure on a welding procedure when you have the correct materials in your warehouse for production as I asked before? Can you use ER70S-2 for Production ? If you run short of low-temp material can you use A106 because in your experience it always passes? I am sure most people qualify on ER70S-G (0.8 Ni)) with ASTM A333 Gr6.
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