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Western Canadian Sedimentary Basin temperature gradient of 0.036 ?C/m (0.0295 °F/ft)

Hi, i have a question with regards to a well being pumped off. what exactly does it mean other than the fluid level is below the nipple. What kind of stresses migh this impose on the traveling unit of a rod insert pump, specifically the traveling valve.

Hey Ed, this part has a CE of 8.5 and from what i read in the ASM book it suggested a pre heat. i turned the bar in half and beveled the edges for R & D purposes and cost. That was my thought as well for filler, however i dont think the supplier stocks it.

Hi, I’m looking at welding a 1.5" d barstock of nitronic 50. The material is Austenetic 209 SS. I’ve decided on a welding rod of 309L SS. From doing a carbon equivalency calculation it looks like this material should be preheated between 400 and 700F (calc from ASM #6 welding book). Post heat...

nothing really tries to minimize heat loss, i put two ceramic circular plates on after during the cooling process. it wouldnt have to do with the level of powder i use, ive tried to minimize the amount of powder i use, thanks for the info.

For some odd reason over the last week, ive had trouble mounting samples. I use a little bit of epoxy on the face and then fill the back end with bakelite. the hydraulic fluid ran out the othr week but i fixed that problem and the jack works fine now. i did get a new order of bakelite in in the...

from what i remember the part had to be machined to 50 mm or so for length wise to do pull tests. But as of right now i think yes we would be machining the specimen.

thanks guys, what i am looking at is welding a 1.5" nitronic rod and doing a pull test on the weld. making sure that the weld will meet what i need. This is still the valid test procedure correct.

Hi, Simple question, trying to find the ASTM testing standard to machine/ produce a test coupon for tensile testing. Does anyone know the test number.

Thanks for the link, good article and reference

I am looking for more information with regards to Rockwell 15N. I know it is a superficial testing method, and that it uses a diamond tip. From the rockwell machine i have it suggests that a different indentor is needed. Does anybody have more information regarding this testing method. Thanks.

the part has three fracture lines breaking away from one of the pitted areas. Its possible that this part saw 2.27 million cylces. Possible crevice corrosion. the stainless doesnt repassivate itself after some wear and then the small pitted areas become the anode, and the part that looks fine is...

heres another question that might help elimintate something: is it possible for CO2 to attack 316 stainless. If it is not possible maybe what i am seeing is cavitation.

the part is from a well pumping unit. The HRB measurements came out to 108 HRB and 92 HRB. The part that is corroded is also showing signs of wear, almost as if someone took a brush and scratched and grooved the surface. The smaller part is in perfectly fine condition, its jus the large part...

So i have a bizzare question/ problem with some 316 stainless steel. I have two parts that connect together, than came from the same heat number. the larger part is corroded and is also harder (33HRC compared to its counterpart at 12 HRC) The smaller part however has become magnetized. The area...

it definitely says 1.0 percent on the spec sheet, however in ASTM 511 the material would fall under all austenic stainless steels, and says yield of 30000 psi, no reference with regards to what method. Im leaning more towards 0.2% offset and going with what the STD says.

hey thanks guys for the quick response. Ill have to go back to purchasing and request some different information from the mill.

Hi all, I have an Material Test Report for a material that has a Y.S of 30000 psi @ .2% offset. Heres the question, the spec the previous guy wrote say 35000 psi @ 1% offset. Is there a conversion for this to compare apples to apples.

I was just using Inconel 600 as an example after flipping through the ASM handbooks and comparing it to what we use (Inconel 718). I personally think this has become a good discussion and very informative. I was trying to find some explanation on the Cr carbide being pulled out and carburization...

Here is the response i got back from special metals: INCONEL alloys should not exhibit magnetic properties ... they are non-magnetic. The only time I have known of INCONEL alloys to be magnetic is after long exposure in a severely carburizing atmosphere such that all the surface chromium is...